DP-900-1_99 PDF Past Paper

Question: 1 CertyIQ HOTSPOT - To complete the sentence, select the appropriate option in the answer area. Hot Area: Answer: Explanation: Descriptive analytics tells "What happened in the past". So B is...

Question: 1 CertyIQ HOTSPOT - To complete the sentence, select the appropriate option in the answer area. Hot Area: Answer: Explanation: Descriptive analytics tells "What happened in the past". So B is the right choice. Reference: https://demand-planning.com/2020/01/20/the-differences-between-descriptive-diagnostic-predictive- cognitive-analytics/ Question: 2 CertyIQ HOTSPOT - For each of the following statements, select Yes if the statement is true. Otherwise, select No. NOTE: Each correct selection is worth one point. Hot Area:  Answer: Explanation: Normalization is the process of organizing data in a database. This includes creating tables and establishing relationships between those tables according to rules designed both to protect the data and to make the database more flexible by eliminating redundancy and inconsistent dependency. Reference: https://docs.microsoft.com/en-us/office/troubleshoot/access/database-normalization- description#:~:text=Normalization%20is%20the%20process%20of,eliminating%20redundancy%20and% 20inconsistent%20dependency https://www.sqlshack.com/what-is-database-normalization-in-sql-server/ Question: 3 CertyIQ HOTSPOT - To complete the sentence, select the appropriate option in the answer area. Hot Area:  Answer: Explanation: Extract, transform, and load (ETL) is a data pipeline used to collect data from various sources, transform the data according to business rules, and load it into a destination data store. Reference: https://docs.microsoft.com/en-us/azure/architecture/data-guide/relational-data/etl Question: 4 CertyIQ HOTSPOT - To complete the sentence, select the appropriate option in the answer area. Hot Area: Answer:  Explanation: When to use batch processing. You might expect latencies when using batch processing. For many situations, however, this type of delay before the transfer of data begins is not a big issue - the processes that use this function are not mission critical at the exact moment. Reference: https://www.bmc.com/blogs/what-is-batch-processing-batch-processing-explained/ Question: 5 CertyIQ HOTSPOT - To complete the sentence, select the appropriate option in the answer area. Hot Area: Answer: Explanation:  Transcribe means converting from Audio to Text. This is similar to Alexa, Alexa is a Cognitive device. Cognitive is the correct answer. Reference: https://azure.microsoft.com/en-us/services/cognitive-services/speech-services/ Question: 6 CertyIQ DRAG DROP - Match the types of analytics that can be used to answer the business questions. To answer, drag the appropriate analytics type from the column on the left to its question on the right. Each analytics type may be used once, more than once, or not at all. NOTE: Each correct match is worth one point. Select and Place: Answer: Explanation: Box 1: Diagnostic - Diagnostic Analytics: At this stage you can begin to answer some of those why questions. Historical data can begin to be measured against other data to answer the question of why something happened in the past. This is the process of gathering and interpreting different data sets to identify anomalies, detect patters, and determine relationships. Box 2: Prescriptive - Prescriptive analytics is a combination of data, mathematical models, and various business rules to infer actions to influence future desired outcomes. Predictive analytics, broadly speaking, is a category of business intelligence that uses descriptive and  predictive variables from the past to analyze and identify the likelihood of an unknown future outcome Box 3: Descriptive - ✑ Generally speaking, data analytics comes in four types: ✑ Descriptive, to answer the question: What's happening? ✑ Diagnostic, to answer the question: Why's happening? ✑ Predictive, to answer the question: What will happen? ✑ Prescriptive, to answer the question: What actions should we take? Reference: https://demand-planning.com/2020/01/20/the-differences-between-descriptive-diagnostic-predictive- cognitive-analytics/ https://azure.microsoft.com/en-us/blog/answering-whats-happening-whys-happening- and-what-will-happen-with-iot-analytics/ Question: 7 CertyIQ HOTSPOT - You have the following JSON document. Use the drop-down menus to select the answer choice that completes each statement based on the information presented in the JSON document. NOTE: Each correct selection is worth one point. Hot Area: Answer:  Explanation: Reference: https://www.w3schools.com/js/js_json_arrays.asp https://www.w3schools.com/js/js_json_objects.asp Question: 8 CertyIQ HOTSPOT - You are reviewing the data model shown in the following exhibit. Use the drop-down menus to select the answer choice that completes each statement based on the information presented in the graphic. NOTE: Each correct selection is worth one point Hot Area: Answer: Explanation: Box 1: star schema - In computing, the star schema is the simplest style of data mart schema and is the approach most widely used to develop data warehouses and dimensional data marts. The star schema consists of one or more fact tables referencing any number of dimension tables. The star schema is an important special case of the snowflake schema, and is more effective for handling simpler queries. Example: Incorrect Answers: The data in the question is not normalized. The snowflake schema is a variation of the star schema, featuring normalization of dimension tables. Example:  Note: A snowflake schema is a logical arrangement of tables in a multidimensional database such that the entity relationship diagram resembles a snowflake shape. The snowflake schema is represented by centralized fact tables which are connected to multiple dimensions.[citation needed]. "Snowflaking" is a method of normalizing the dimension tables in a star schema. When it is completely normalized along all the dimension tables, the resultant structure resembles a snowflake with the fact table in the middle. Box 2: dimension - The star schema consists of one or more fact tables referencing any number of dimension tables. Reference: https://docs.microsoft.com/en-us/azure/synapse-analytics/sql-data-warehouse/sql-data-warehouse-tables-o verview https://en.wikipedia.org/wiki/Star_schema https://en.wikipedia.org/wiki/Snowflake_schema https://az ure.microsoft.com/en-us/blog/data-models-within-azure-analysis-services-and-power-bi/ Question: 9 CertyIQ HOTSPOT - To complete the sentence, select the appropriate option in the answer area. Hot Area:  Answer: Explanation: Reference: https://docs.microsoft.com/en-us/azure/synapse-analytics/sql-data-warehouse/massively-parallel-processin g-mpp-architecture Question: 10 CertyIQ HOTSPOT - To complete the sentence, select the appropriate option in the answer area. Hot Area: Answer: Explanation:  Clustered indexes sort and store the data rows in the table or view based on their key values. These are the columns included in the index definition. There can be only one clustered index per table, because the data rows themselves can be stored in only one order. Reference: https://docs.microsoft.com/en-us/sql/relational-databases/indexes/clustered-and-nonclustered-indexes- described?view=sql-server-ver15 Question: 11 CertyIQ HOTSPOT - To complete the sentence, select the appropriate option in the answer area. Hot Area: Answer: Explanation: Disadvantages of non-relational databases include: Data Consistency " non-relational databases do not perform ACID transactions. Note: Relational databases are optimized for writes. They are optimized for consistency and availability. Advantages of relational databases include simplicity, ease of data retrieval, data integrity, and flexibility. Incorrect Answers: Use a relational database when data that you work with is structured, and the structure is not subject to frequent changes. Use Cloud storage (no relational database) for geographically distributed writes. Reference: https://towardsdatascience.com/choosing-the-right-database-c45cd3a28f77 Question: 12 CertyIQ HOTSPOT - For each of the following statements, select Yes if the statement is true. Otherwise, select No. NOTE: Each correct selection is worth one point. Hot Area: Answer: Explanation: Box 1: Yes - Big data solutions often use long-running batch jobs to filter, aggregate, and otherwise prepare the data for analysis. Usually these jobs involve reading source files from scalable storage (like HDFS, Azure Data Lake Store, and Azure Storage), processing them, and writing the output to new files in scalable storage. Box 2: Yes- Box 3: Yes- Batch processing can have output to SQL Database, Hive, HBase, Spark SQL. Look at the link and the diagram there Reference: https://docs.microsoft.com/en-us/azure/architecture/data-guide/big-data/batch-processing Question: 13 CertyIQ DRAG DROP - Your company plans to load data from a customer relationship management (CRM) system to a data warehouse by using an extract, load, and transform (ELT) process. Where does data processing occur for each stage of the ELT process? To answer, drag the appropriate locations to the correct stages. Each location may be used once, more than once, or not at all. You may need to drag the split bar between panes or scroll to view content. NOTE: Each correct selection is worth one point. Select and Place: Answer: Explanation: For ELT, the correct answer is CRM-DWH-DWH Box 1: The CRM system - Data is extracted from the CRM system. Box 2: The data warehouse - Data is loaded to the data warehouse. Box 3: The data warehouse - https://learn.microsoft.com/en-us/azure/architecture/data-guide/relational-data/etl Extract, load, and transform (ELT) differs from ETL solely in where the transformation takes place. In the ELT pipeline, the transformation occurs in the target data store. Instead of using a separate transformation engine, the processing capabilities of the target data store are used to transform data. Reference: https://docs.microsoft.com/en-us/azure/architecture/data-guide/relational-data/etl Question: 14 CertyIQ HOTSPOT - To complete the sentence, select the appropriate option in the answer area. Hot Area: Answer: Explanation: Generally speaking, data analytics comes in four types (Figure 1): Descriptive, to answer the question: What's happening? Diagnostic, to answer the question: Why's happening? Predictive, to answer the question: What will happen? Prescriptive, to answer the question: What actions should we take? Reference: https://azure.microsoft.com/en-us/blog/answering-whats-happening-whys-happening-and-what-will-happen- with-iot-analytics/ Question: 15 CertyIQ DRAG DROP - Match the types of visualizations to the appropriate descriptions. To answer, drag the appropriate visualization type from the column on the left to its description on the right. Each visualization type may be used once, more than once, or not at all. NOTE: Each correct match is worth one point. Select and Place:  Answer: Explanation: Box 1: Tree map - Treemaps are charts of colored rectangles, with size representing value. They can be hierarchical, with rectangles nested within the main rectangles. Box 2: Key influencer - A key influencer chart displays the major contributors to a selected result or value. Box 3: Scatter - Scatter and Bubble charts display relationships between 2 (scatter) or 3 (bubble) quantitative measures -- whether or not, in which order, etc. Question: 16 CertyIQ You need to create an Azure Storage account. Data in the account must replicate outside the Azure region automatically. Which two types of replication can you use for the storage account? Each correct answer presents a complete solution. NOTE: Each correct selection is worth one point. A. zone-redundant storage (ZRS) B. read-access geo-redundant storage (RA-GRS) C. locally-redundant storage (LRS) D. geo-redundant storage (GRS) Answer: BD Explanation: D: Azure Storage offers two options for copying your data to a secondary region: ✑ Geo-redundant storage (GRS) ✑ Geo-zone-redundant storage (GZRS) B: With GRS or GZRS, the data in the secondary region isn't available for read or write access unless there is a failover to the secondary region. For read access to the secondary region, configure your storage account to use read-access geo-redundant storage (RA-GRS) or read-access geo-zone-redundant storage (RA- GZRS). Reference: https://docs.microsoft.com/en-us/azure/storage/common/storage-redundancy#redundancy-in-a-secondary-r egion Question: 17 CertyIQ HOTSPOT - For each of the following statements, select Yes if the statement is true. Otherwise, select No. NOTE: Each correct selection is worth one point. Hot Area: Answer:  Explanation: Box 1: Yes - Like IaaS, PaaS includes infrastructure " servers, storage, and networking " but also middleware, development tools, business intelligence (BI) services, database management systems, and more. PaaS is designed to support the complete web application lifecycle: building, testing, deploying, managing, and updating. PaaS allows you to avoid the expense and complexity of buying and managing software licenses, the underlying application infrastructure and middleware, container orchestrators such as Kubernetes, or the development tools and other resources Box 2: No - You manage the applications and services you develop, and the cloud service provider typically manages everything else. Box 3: No - There really is no way to pause / stop billing for your Azure SQL Database. Microsoft's official answer "Yes, you can export your database. Delete the Azure SQL database and that will pause billing. Then when you need it you can create a new database and import your previously exported DB." Reference: https://azure.microsoft.com/en-us/overview/what-is-paas Question: 18 CertyIQ Which statement is an example of Data Manipulation Language (DML)? A. REVOKE B. DISABLE  C. INSERT D. GRANT Answer: C Explanation: Data Manipulation Language (DML) affect the information stored in the database. Use these statements to insert, update, and change the rows in the database. BULK INSERT - ✑ DELETE ✑ INSERT ✑ SELECT ✑ UPDATE ✑ MERGE Reference: https://docs.microsoft.com/en-us/sql/t-sql/statements/statements Question: 19 CertyIQ You have a SQL query that combines customer data and order data. The query includes calculated columns. You need to create a database object that would allow other users to rerun the same SQL query. What should you create? A. an index B. a view C. a scalar function D. a table Answer: B Explanation: A view is a virtual table whose contents are defined by a query. A view acts as a filter on the underlying tables referenced in the view. The query that defines the view can be from one or more tables or from other views in the current or other databases. Reference: https://docs.microsoft.com/en-us/sql/relational-databases/views/views Question: 20 CertyIQ HOTSPOT - To complete the sentence, select the appropriate option in the answer area. Hot Area:  Answer: Explanation: Box 1: simple lookups - A key/value store associates each data value with a unique key. Most key/value stores only support simple query, insert, and delete operations. To modify a value (either partially or completely), an application must overwrite the existing data for the entire value. In most implementations, reading or writing a single value is an atomic operation. An application can store arbitrary data as a set of values. Any schema information must be provided by the application. The key/value store simply retrieves or stores the value by key. Reference: https://docs.microsoft.com/en-us/azure/architecture/guide/technology-choices/data-store-overview Question: 21 CertyIQ DRAG DROP - Match the types of data to the appropriate Azure data services. To answer, drag the appropriate data type from the column on the left to its service on the right. Each data type may be used once, more than once, or not at all. NOTE: Each correct match is worth one point. Select and Place:  Answer: Explanation: 1. Image files = Azure Blob storage 2. Relationship between employees = Azure Cosmos DB Gremlin API 3. Key/value pairs = Azure Table Storage Box 1: Image files - Azure Blob storage is suitable for image files. Box 2: Relationship between employees Azure Cosmos DB Gremlin API Box 3:Key/value pairs - Azure Table Storage Reference: https://docs.microsoft.com/en-us/azure/storage/tables/table-storage-design-modeling Question: 22 CertyIQ DRAG DROP - Match the Azure Data Lake Storage Gen2 terms to the appropriate levels in the hierarchy. To answer, drag the appropriate term from the column on the left to its level on the right. Each term may be used once, more than once, or not at all. NOTE: Each correct match is worth one point. Select and Place:  Answer: Explanation: Box 1: Azure Storage account - Azure file shares are deployed into storage accounts, which are top-level objects that represent a shared pool of storage. Box 2: Container - Reference: https://docs.microsoft.com/en-us/azure/storage/files/storage-how-to-create-file-share Question: 23 CertyIQ What are two characteristics of real-time data processing? Each correct answer presents a complete solution. NOTE: Each correct selection is worth one point. A. Data is processed periodically B. Low latency is expected C. High latency is acceptable  D. Data is processed as it is created Answer: BD Explanation: Real time processing deals with streams of data that are captured in real-time and processed with minimal latency to generate real-time (or near-real-time) reports or automated responses. Reference: https://docs.microsoft.com/en-us/azure/architecture/data-guide/big-data/real-time-processing Question: 24 CertyIQ DRAG DROP - Match the Azure Data Factory components to the appropriate descriptions. To answer, drag the appropriate component from the column on the left to its description on the right. Each component may be used once, more than once, or not at all. NOTE: Each correct match is worth one point. Select and Place: Answer: Explanation: Box 1: Dataset - Datasets must be created from paths in Azure datastores or public web URLs, for the data to be accessible by Azure Machine Learning. Box 2: Linked service - Linked services are much like connection strings, which define the connection information needed for Data Factory to connect to external resources.  Box 3: Pipeline - A pipeline is a logical grouping of activities that together perform a task. Reference: https://k21academy.com/microsoft-azure/dp-100/datastores-and-datasets-in-azure/ https://docs.microsoft.co m/en-us/azure/data-factory/concepts-linked-services https://docs.microsoft.com/en-us/azure/data-factory/c oncepts-pipelines-activities Question: 25 CertyIQ DRAG DROP - Match the types of workloads to the appropriate scenarios. To answer, drag the appropriate workload type from the column on the left to its scenario on the right. Each workload type may be used once, more than once, or not at all. NOTE: Each correct match is worth one point. Select and Place: Answer: Explanation: Box 1: Batch - Batch processing refers to the processing of blocks of data that have already been stored over a period of time. Box 2: Streaming - Stream processing is a big data technology that allows us to process data in real-time as they arrive and detect conditions within a small period of time from the point of receiving the data. It allows us to feed data into analytics tools as soon as they get generated and get instant analytics results. Box 3: Batch - Reference: https://docs.microsoft.com/en-us/azure/architecture/data-guide/technology-choices/batch-processing Question: 26 CertyIQ DRAG DROP - Your company plans to load data from a customer relationship management (CRM) system to a data warehouse by using an extract, load, and transform (ELT) process. Where does data processing occur for each stage of the ELT process? To answer, drag the appropriate locations to the correct stages. Each location may be used once, more than once, or not at all. You may need to drag the split bar between panes or scroll to view content. NOTE: Each correct selection is worth one point. Select and Place: Answer: Explanation: Box 1: The CRM system - Data is extracted from the CRM system. Box 2: The data warehouse - Data is loaded to the data warehouse. Box 3: The data warehouse - "Extract, load, and transform (ELT) differs from ETL solely in where the transformation takes place. In the ELT pipeline, the transformation occurs in the target data store. Instead of using a separate transformation engine, the processing capabilities of the target data store are used to transform data (...) In practice, the TARGET data store is a DATA WAREHOUSE using either a Hadoop cluster (using Hive or Spark) or a SQL dedicated pools on Azure Synapse Analytics" (https://docs.microsoft.com/en-us/azure/architecture/data- guide/relational-data/etl) = DW for the Transform.  Reference: https://docs.microsoft.com/en-us/azure/architecture/data-guide/relational-data/etl Question: 27 CertyIQ Your company recently reported sales from the third quarter. You have the chart shown in the following exhibit. Which type of analysis is shown in the fourth quarter? A. predictive B. prescriptive C. descriptive D. diagnostic Answer: A Explanation: Predictive, to answer the question: What will happen? Reference: https://demand-planning.com/2020/01/20/the-differences-between-descriptive-diagnostic-predictive-cogniti ve-analytics/ https://azure.microsoft.com/en-us/blog/answering-whats-happening-whys-happening-and-what -will-happen-with-iot-analytics/ Question: 28 CertyIQ Which statement is an example of Data Manipulation Language (DML)? A. REVOKE B. DISABLE C. CREATE D. UPDATE Answer: D Explanation: Data Manipulation Language (DML) affect the information stored in the database. Use these statements to insert, update, and change the rows in the database. BULK INSERT - DELETE - INSERT - SELECT - UPDATE - MERGE - There's 3 type of Relational data SQL: DDL (Data Definition Language) CREATE, DROP, ALTER, RENAME, COMMENT AND TRUNCATE. DML (Data Manipulación Language) SELECT, INSERT INTO, DELETE, UPDATE. DCL (Data Control Language) REVOKE & GRANT. TCL (Transaccional Control Language) COMMIT & ROLLBACK Reference: https://docs.microsoft.com/en-us/sql/t-sql/statements/statements Question: 29 CertyIQ HOTSPOT - To complete the sentence, select the appropriate option in the answer area. Hot Area:  Answer: Explanation: Correct answer is Cognitive. Reference: https://azure.microsoft.com/en-us/services/cognitive-services/speech-to-text/#overview Question: 30 CertyIQ HOTSPOT - To complete the sentence, select the appropriate option in the answer area. Hot Area: Answer:  Explanation: Generally speaking, data analytics comes in four types: 1. Descriptive, to answer the question: What's happening? 2. Diagnostic, to answer the question: Why's happening? 3. Predictive, to answer the question: What will happen? 4. Prescriptive, to answer the question: What actions should we take? Reference: https://azure.microsoft.com/en-us/blog/answering-whats-happening-whys-happening-and-what-will-happen- with-iot-analytics/ Question: 31 CertyIQ HOTSPOT - To complete the sentence, select the appropriate option in the answer area. Hot Area:  Answer: Explanation: With ELT, the data store used to perform the transformation is the same data store where the data is ultimately consumed. Reference: https://docs.microsoft.com/en-us/azure/architecture/data-guide/relational-data/etl Question: 32 CertyIQ You need to create an Azure resource to store data in Azure Table storage. Which command should you run? A. az storage share create B. az storage account create C. az cosmosdb create D. az storage container create Answer: B Explanation: Due to no az storage table create in the selection. The best answer is B create storage account (first) Question: 33 CertyIQ HOTSPOT - To complete the sentence, select the appropriate option in the answer area. Hot Area: Answer: Explanation: Azure Cosmos DB SQL API accounts provide support for querying items using the Structured Query Language (SQL) syntax. Reference: https://docs.microsoft.com/en-us/azure/cosmos-db/choose-api Question: 34 CertyIQ You need to modify a view in a relational database by adding a new column. Which statement should you use? A. MERGE B. ALTER C. INSERT D. UPDATE Answer: B Explanation: "Modify a View" = Alter View.... There's 3 type of Relational data SQL: DDL (Data Definition Language) CREATE, DROP, ALTER, RENAME, COMMENT AND TRUNCATE.  DML (Data Manipulación Language) SELECT, INSERT INTO, DELETE, UPDATE. DCL (Data Control Language) REVOKE & GRANT. TCL (Transactional Control Language) COMMIT & ROLLBACK Question: 35 CertyIQ HOTSPOT - For each of the following statements, select Yes if the statement is true. Otherwise, select No. NOTE: Each correct selection is worth one point. Hot Area: Answer: Explanation: Sentence one is yes - You can reduce transfer sensitive data with transformations on data source.  Sentence two is No - ELT use the compute resource from destination system. And for last Yes. ELT minimizes time with transformations are going realizaded on target data destination systems. Reference: https://docs.microsoft.com/en-us/azure/architecture/data-guide/relational-data/etl Question: 36 CertyIQ HOTSPOT - You plan to deploy a PostgreSQL database to Azure. Which hosting model corresponds to the available deployment options? To answer, select the appropriate options in the answer area. NOTE: Each correct selection is worth one point. Hot Area: Answer:  Explanation: Que said VM --> Hence IAAS so, IAAS AND PAAS is correct Reference: https://azure.microsoft.com/en-us/overview/what-is-saas/ https://azure.microsoft.com/en-us/overview/what-is-paas/ Question: 37 CertyIQ HOTSPOT - To complete the sentence, select the appropriate option in the answer area. Hot Area: Answer: Explanation: Graph databases can efficiently perform queries across the network of nodes and edges and analyze the relationships between entities. https://learn.microsoft.com/en-us/azure/architecture/guide/technology-choices/data-store-overview Question: 38 CertyIQ Which Azure storage solution provides native support for POSIX-compliant access control lists (ACLs)? A. Azure Table storage  B. Azure Data Lake Storage C. Azure Queue storage D. Azure Files Answer: B Explanation: Reference: https://docs.microsoft.com/en-us/azure/storage/blobs/data-lake-storage-access-control Question: 39 CertyIQ HOTSPOT - To complete the sentence, select the appropriate option in the answer area. Hot Area: Answer: Question: 40 CertyIQ HOTSPOT - To complete the sentence, select the appropriate option in the answer area. Hot Area: Answer: Explanation: Answer is B, Clustered indexes. https://docs.microsoft.com/en-us/sql/relational-databases/indexes/clustered-and-nonclustered-indexes- described?view=sql-server-ver15&viewFallbackFrom=sql-server- ver15%20%20%20Previous%20QuestionsNext%20Questions Reference: https://docs.microsoft.com/en-us/sql/relational-databases/indexes/clustered-and-nonclustered-indexes- described?view=sql-server-ver15 Question: 41 CertyIQ HOTSPOT - To complete the sentence, select the appropriate option in the answer area. Hot Area:  Answer: Explanation: Reference: https://docs.microsoft.com/en-us/sql/relational-databases/stored-procedures/stored-procedures-database-e ngine?view=sql-server-ver15 Question: 42 CertyIQ DRAG DROP - Match the types of analytics that can be used to answer the business questions. To answer, drag the appropriate analytics type from the column on the left to its question on the right. Each analytics type may be used once, more than once, or not at all. NOTE: Each correct match is worth one point. Select and Place: Answer:  Explanation: Box 1: Diagnostic - Diagnostic Analytics: At this stage you can begin to answer some of those why questions. Historical data can begin to be measured against other data to answer the question of why something happened in the past. This is the process of gathering and interpreting different data sets to identify anomalies, detect patters, and determine relationships. Box 2: Prescriptive - Prescriptive analytics is a combination of data, mathematical models, and various business rules to infer actions to influence future desired outcomes. Predictive analytics, broadly speaking, is a category of business intelligence that uses descriptive and predictive variables from the past to analyze and identify the likelihood of an unknown future outcome Box 3: Cognitive - Reference: https://demand-planning.com/2020/01/20/the-differences-between-descriptive-diagnostic-predictive- cognitive-analytics/ https://azure.microsoft.com/en-us/blog/answering-whats-happening-whys-happening- and-what-will-happen-with-iot-analytics/ Question: 43 CertyIQ HOTSPOT - To complete the sentence, select the appropriate option in the answer area. Hot Area:  Answer: Question: 44 CertyIQ Which type of database is Azure Database for PostgreSQL? A. Platform as a service (PaaS) B. Infrastructure as a service (IaaS) C. Microsoft SQL Server D. on-premises Answer: A Explanation: Correct answer: A, PAAS Reference: https://docs.microsoft.com/en-us/azure/postgresql/overview-postgres-choose-server-options Question: 45 CertyIQ Which storage solution supports access control lists (ACLs) at the file and folder level? A. Azure Data Lake Storage B. Azure Queue storage C. Azure Blob storage D. Azure Cosmos DB Answer: A Explanation: Azure Data Lake Storage Gen2 implements an access control model that supports both Azure role-based access control (Azure RBAC) and POSIX-like access control lists (ACLs). Reference: https://docs.microsoft.com/en-us/azure/storage/blobs/data-lake-storage-access-control Question: 46 CertyIQ HOTSPOT - Select the answer that correctly completes the sentence. Hot Area: Answer: Explanation: A treemap chart divides the chart area into rectangles that represent the different levels and relative sizes of the data hierarchy.  Reference: https://docs.microsoft.com/en-us/sql/reporting-services/report-design/tree-map-and-sunburst-charts-in-repo rting-services?view=sql-server-ver15 Question: 47 CertyIQ What is a characteristic of batch processing? A. The data ingested during batch processing must be processed as soon as the data is received. B. Large datasets must be split into batches of less than 1 GB before the data can be processed. C. There is a noticeable time delay between ingesting data and obtaining the data processing results. D. Batch processing can only process data that is structured. Answer: C Explanation: C. Batch processing can process both structured and unstructured data. Question: 48 CertyIQ HOTSPOT - Select the answer that correctly completes the sentence. Hot Area: Answer: Explanation: An aggregate function performs a calculation on a set of values, and returns a single value. The following are aggregate functions: ✑ APPROX_COUNT_DISTINCT ✑ AVG  ✑ CHECKSUM_AGG ✑ COUNT ✑ COUNT_BIG GROUPING - ✑ GROUPING_ID ✑ MAX ✑ MIN ✑ STDEV ✑ STDEVP ✑ STRING_AGG ✑ SUM ✑ VAR ✑ VARP Reference: https://docs.microsoft.com/en-us/sql/t-sql/functions/aggregate-functions-transact-sql?view=sql-server-ver1 5 Question: 49 CertyIQ HOTSPOT - For each of the following statements, select Yes if the statement is true. Otherwise, select No. NOTE: Each correct selection is worth one point. Hot Area: Answer: Explanation: Box 1: Yes - Batch processing refers to processing of high volume of data in batch within a specific time span. It processes large volume of data all at once. Batch processing is used when data size is known and finite. It takes little  longer time to processes data. Box 2: Yes - Stream processing refers to processing of continuous stream of data immediately as it is produced. It analyzes streaming data in real time. Stream processing is used when the data size is unknown and infinite and continuous. Box 3: No - Reference: https://www.geeksforgeeks.org/difference-between-batch-processing-and-stream-processing/ Question: 50 CertyIQ HOTSPOT - Select the answer that correctly completes the sentence. Hot Area: Answer: Explanation: The same set of columns. In relational databases, a row is a data record within a table. Each row, which represents a complete record of specific item data, holds different data within the same structure. A row is occasionally referred to as a tuple. Incorrect: Not: a key value pair. Unlike relational databases, key-value databases do not have a specified structure. Relational databases store data in tables where each column has an assigned data type. Key-value databases are a collection of key-value pairs that are stored as individual records and do not have a predefined data structure. Reference: https://www.techopedia.com/definition/4425/database-row https://www.techtarget.com/searchdatamanagement/tip/NoSQL-database-types-explained-Key-value-store Question: 51 CertyIQ HOTSPOT - For each of the following statements, select Yes if the statement is true. Otherwise, select No. NOTE: Each correct selection is worth one point. Hot Area: Answer: Explanation: Box 1: No - Database normalization is the process of restructuring a relational database in accordance with a series of so- called normal forms in order to reduce data redundancy and improve data integrity. Full normalisation will generally not improve performance, in fact it can often make it worse but it will keep your data duplicate free. Box 2: No - Analytics systems are deformalized to increase performance. Transactional database systems are normalized to increase data consistency. Box 3: Yes - Transactional database systems are more normalized and requires more joins. Reference:  https://www.sqlshack.com/what-is-database-normalization-in-sql-server Question: 52 CertyIQ HOTSPOT - Select the answer that correctly completes the sentence. Hot Area: Answer: Explanation: A graph database stores two types of information, nodes and edges. Edges specify relationships between nodes. Nodes and edges can have properties that provide information about that node or edge, similar to columns in a table. Edges can also have a direction indicating the nature of the relationship. Reference: https://docs.microsoft.com/en-us/azure/architecture/guide/technology-choices/data-store-overview Question: 53 CertyIQ HOTSPOT - Select the answer that correctly completes the sentence. Hot Area:  Answer: Explanation: A key/value store associates each data value with a unique key. Key/value stores are highly optimized for applications performing simple lookups, but are less suitable if you need to query data across different key/value stores. Key/value stores are also not optimized for querying by value. A single key/value store can be extremely scalable, as the data store can easily distribute data across multiple nodes on separate machines. Reference: https://docs.microsoft.com/en-us/azure/architecture/guide/technology-choices/data-store-overview Question: 54 CertyIQ HOTSPOT - Select the answer that correctly completes the sentence. Hot Area: Answer:  Explanation: SQL Server on Azure VM - SQL Server on Azure VM falls into the industry category Infrastructure-as-a-Service (IaaS) and allows you to run SQL Server inside a fully managed virtual machine (VM) in Azure. The most significant difference from SQL Database and SQL Managed Instance is that SQL Server on Azure Virtual Machines allows full control over the database engine. You can choose when to start maintenance/patching, change the recovery model to simple or bulk-logged, pause or start the service when needed, and you can fully customize the SQL Server database engine. With this additional control comes the added responsibility to manage the virtual machine. Reference: https://docs.microsoft.com/en-us/azure/azure-sql/azure-sql-iaas-vs-paas-what-is-overview?view=azuresql Question: 55 CertyIQ HOTSPOT - Select the answer that correctly completes the sentence. Hot Area: Answer: Explanation: For some semi-structured data formats (e.g. JSON), data sets are frequently a simple concatenation of multiple documents.  Reference: https://docs.snowflake.com/en/user-guide/semistructured-considerations.html Question: 56 CertyIQ HOTSPOT - Select the answer that correctly completes the sentence. Hot Area: Answer: Explanation: Semi-structured data - Semi-structured data (e.g., JSON, CSV, XML) is the bridge between structured and unstructured data. It does not have a predefined data model and is more complex than structured data, yet easier to store than unstructured data. Reference: https://www.ibm.com/cloud/blog/structured-vs-unstructured-data Question: 57 CertyIQ Which property of a transactional workload guarantees that each transaction is treated as a single unit that either succeeds completely or fails completely? A. atomicity B. isolation  C. durability D. consistency Answer: A Explanation: The purpose of making transactions atomic is to prevent different transactions from interfering with one another. This can only happen if more than one user process is trying to access the database at the same time, as when a server allows several clients to use it concurrently. The simplest way to enforce atomicity is for the DBMS to refuse to start any transaction until the previous one has committed. Reference: https://www.sciencedirect.com/topics/computer-science/atomic-transaction Question: 58 CertyIQ You have a data store that has the structure shown in the following exhibit. Which type of data store is this? A. key/value B. object data C. graph D. time series  Answer: C Explanation: A graph database stores two types of information, nodes and edges. Edges specify relationships between nodes. Nodes and edges can have properties that provide information about that node or edge, similar to columns in a table. Edges can also have a direction indicating the nature of the relationship. Reference: https://docs.microsoft.com/en-us/azure/architecture/guide/technology-choices/data-store-overview Question: 59 CertyIQ Which type of database contains nodes and edges? A. graph B. key/value C. columnar D. time series Answer: A Explanation: A graph database stores two types of information, nodes and edges. Edges specify relationships between nodes. Nodes and edges can have properties that provide information about that node or edge, similar to columns in a table. Edges can also have a direction indicating the nature of the relationship. Reference: https://docs.microsoft.com/en-us/azure/architecture/guide/technology-choices/data-store-overview Question: 60 CertyIQ HOTSPOT - Select the answer that correctly completes the sentence. Hot Area: Answer:  Explanation: A data analyst's primary skill set revolves around data acquisition, handling, and processing. Incorrect: * A data engineer requires an intermediate level understanding of programming to build thorough algorithms along with a mastery of statistics and math. * A data scientist needs to be a master of both worlds. Data, stats, and math along with in-depth programming knowledge for Machine Learning and Deep Learning. Reference: https://www.edureka.co/blog/data-analyst-vs-data-engineer-vs-data-scientist/ Question: 61 CertyIQ HOTSPOT - To complete the sentence, select the appropriate option in the answer area. Hot Area: Answer: Explanation: Reference:  https://teachcomputerscience.com/relational-databases/ Question: 62 CertyIQ You have an inventory management database that contains the following table. Which statement should you use in a SQL query to change the inventory quantity of Product1 to 270? A. INSERT B. MERGE C. UPDATE D. CREATE Answer: C Explanation: ALTER - add/delete/modify column UPDATE - update existing row INSERT - Insert new row Reference: https://docs.microsoft.com/en-us/sql/t-sql/queries/update-transact-sql?view=sql-server-ver15 Question: 63 CertyIQ Your company needs to implement a relational database in Azure. The solution must minimize ongoing maintenance. Which Azure service should you use? A. Azure HDInsight B. Azure SQL Database C. Azure Cosmos DB D. SQL Server on Azure Virtual Machines Answer: B Explanation: Reference: https://azure.microsoft.com/en-us/services/sql-database/#features Question: 64 CertyIQ You are writing a set of SQL queries that administrators will use to troubleshoot an Azure SQL database. You need to embed documents and query results into a SQL notebook. What should you use? A. Microsoft SQL Server Management Studio (SSMS) B. Azure Data Studio C. Azure CLI D. Azure PowerShell Answer: B Explanation: B. Azure Data Studio is a cross-platform database tool that allows you to embed documents and query results into a SQL notebook. It supports Azure SQL databases, SQL Server, and other databases. It also has built-in support for SQL Notebooks, which allows you to mix markdown, code, and results in a single notebook. This makes it a great tool for creating documentation and troubleshooting guides for administrators to use when working with Azure SQL databases. Reference: https://www.mssqltips.com/sqlservertip/5997/create-sql-server-notebooks-in-azure-data-studio/ Question: 65 CertyIQ DRAG DROP - Match the terms to the appropriate descriptions. To answer, drag the appropriate term from the column on the left to its description on the right. Each term may be used once, more than once, or not at all. NOTE: Each correct match is worth one point. Select and Place: Answer: Explanation: Reference: https://en.wikipedia.org/wiki/Table_(database)  https://en.wikipedia.org/wiki/View_(SQL) https://en.wikipedia.org/wiki/Database_index Question: 66 CertyIQ You have an e-commerce application that reads and writes data to an Azure SQL database. Which type of processing does the application use? A. stream processing B. batch processing C. Online Analytical Processing (OLAP) D. Online Transaction Processing (OLTP) Answer: D Explanation: OLTP is designed to serve as a persistent data store for business or front-end applications. OLTP administers day to day transaction of an organization. Online Transaction Processing (OLTP) https://learn.microsoft.com/en-us/training/modules/explore-core-data-concepts/5-transactional-data- processing?ns-enrollment-type=learningpath&ns-enrollment-id=learn.wwl.azure-data-fundamentals-explore- core-data-concepts Reference: https://sqlwizard.blog/2020/03/15/sql-server-oltp-vs-olap/ Question: 67 CertyIQ When can you use an Azure Resource Manager template? A. to automate the creation of an interdependent group of Azure resources in a repeatable way B. to apply Azure policies for multi-tenant deployments C. to provision Azure subscriptions D. to control which services and feature administrators and developers can deploy from the Azure portal Answer: A Explanation: You can automate deployments and use the practice of infrastructure as code. In code, you define the infrastructure that needs to be deployed To implement infrastructure as code for your Azure solutions, use Azure Resource Manager templates (ARM templates). The template is a JavaScript Object Notation (JSON) file that defines the infrastructure and configuration for your project. The template uses declarative syntax, which lets you state what you intend to deploy without having to write the sequence of programming commands to create it. In the template, you specify the resources to deploy and the properties for those resources. Reference:  https://docs.microsoft.com/en-us/azure/azure-resource-manager/templates/overview Question: 68 CertyIQ You have an Azure SQL database that you access directly from the Internet. You recently changed the public IP address of your computer. After changing the IP address, you can no longer access the database. You can connect to other resources in Azure. What is a possible cause of the issue? A. role-based access control (RBAC) B. Dynamic Host Configuration Protocol (DHCP) C. Domain Name Service (DNS) D. a database-level firewall Answer: D Explanation: The Azure SQL Database firewall lets you decide which IP addresses may or may not have access to either your Azure SQL Server or your Azure SQL database. When creating an Azure SQL Database, the firewall needs to be configured before anyone will be able to access the database. By default, no external access to your SQL Database will be allowed until you explicitly assign permission by creating a firewall rule. Reference: https://www.sqlshack.com/configuring-the-azure-sql-database-firewall/ Question: 69 CertyIQ DRAG DROP - Match the tools to the appropriate descriptions. To answer, drag the appropriate tool from the column on the left to its description on the right. Each tool may be used once, more than once, or not at all. Select and Place: Answer:  Explanation: Box 1: Microsoft SQL Server Management Studio (SSMS) SQL Server Management Studio (SSMS) is an integrated environment for managing any SQL infrastructure, from SQL Server to Azure SQL Database. Box 2: Azure Data Studio - Azure Data Studio offers a modern, keyboard-focused SQL coding experience that makes your everyday tasks easier with built-in features, such as multiple tab windows, a rich SQL editor, IntelliSense, keyword completion, code snippets, code navigation, and source control integration (Git). Run on-demand SQL queries, view and save results as text, JSON, or Excel. Edit data, organize your favorite database connections, and browse database objects in a familiar object browsing experience. Box 3: Microsoft SQL Server Data Tools (SSDT) SQL Server Data Tools (SSDT) is a modern development tool for building SQL Server relational databases, databases in Azure SQL, Analysis Services (AS) data models, Integration Services (IS) packages, and Reporting Services (RS) reports. With SSDT, you can design and deploy any SQL Server content type with the same ease as you would develop an application in Visual Studio. Reference: https://docs.microsoft.com/en-us/sql/ssms/download-sql-server-management-studio-ssms https://code.visua lstudio.com/docs/supporting/FAQ https://docs.microsoft.com/en-us/sql/azure-data-studio/what-is-azure-data -studio https://docs.microsoft.com/en-us/sql/ssdt/download-sql-server-data-tools-ssdt Question: 70 CertyIQ HOTSPOT - For each of the following statements, select Yes if the statement is true. Otherwise, select No. NOTE: Each correct selection is worth one point. Hot Area: Answer:  Explanation: Box 1: Yes - Tables are database objects that contain all the data in a database. In tables, data is logically organized in a row-and-column format similar to a spreadsheet. Each row represents a unique record, and each column represents a field in the record. Box 2: No - An index is an on-disk structure associated with a table or view that speeds retrieval of rows from the table or view. Box 3: Yes - A view is a virtual table whose contents are defined by a query. Like a table, a view consists of a set of named columns and rows of data. Reference: https://docs.microsoft.com/en-us/sql/relational-databases/tables/tables https://docs.microsoft.com/en-us/sql /relational-databases/indexes/clustered-and-nonclustered-indexes-described https://docs.microsoft.com/en- us/sql/relational-databases/views/views?view=sql-server-ver15 Question: 71 CertyIQ Which command-line tool can you use to query Azure SQL databases? A. sqlcmd B. bcp C. azdata D. Azure CLI Answer: A Explanation: The sqlcmd utility lets you enter Transact-SQL statements, system procedures, and script files at the command prompt. Incorrect Answers: B: The bulk copy program utility (bcp) bulk copies data between an instance of Microsoft SQL Server and a data file in a user-specified format. D: The Azure CLI is the defacto tool for cross-platform and command-line tools for building and managing Azure resources. Reference:  https://docs.microsoft.com/en-us/sql/tools/overview-sql-tools?view=sql-server-ver15 Question: 72 CertyIQ HOTSPOT - For each of the following statements, select Yes if the statement is true. Otherwise, select No. NOTE: Each correct selection is worth one point. Hot Area: Answer: Explanation: Box 1: Yes - Box 2: Yes - Box 3: Yes - Azure Defender provides security alerts and advanced threat protection for virtual machines, SQL databases, containers, web applications, your network, and more. Azure Defender provides security alerts and advanced threat protection for virtual machines, SQL databases, containers, web applications, your network, and more. Reference: https://docs.microsoft.com/en-us/azure/azure-sql/database/sql-database-paas-overview https://azure.micros  oft.com/en-us/blog/announcing-sql-atp-and-sql-vulnerability-assessment-general-availability/ https://docs.m icrosoft.com/en-us/azure/security-center/azure-defender Question: 73 CertyIQ HOTSPOT - For each of the following statements, select Yes if the statement is true. Otherwise, select No. NOTE: Each correct selection is worth one point. Hot Area: Answer: Explanation: A) Yes from https://docs.microsoft.com/en-us/sql/azure-data-studio/what-is?view=sql-server-ver15 Use Azure Data Studio if you: Are connecting to a SQL Server 2019 big data cluster B) Yes from https://docs.microsoft.com/en-us/learn/modules/query-azure-sql-data-warehouse/4-query-dw- using-ssms C) Yes from https://docs.microsoft.com/en-us/azure/mariadb/connect-workbench Reference:  https://docs.microsoft.com/en-us/sql/big-data-cluster/connect-to-big-data-cluster?view=sql-server-ver15 https://docs.microsoft.com/en-us/azure/synapse-analytics/sql-data-warehouse/sql-data-warehouse-query- ssms https://docs.microsoft.com/en-us/azure/mariadb/connect-workbench Question: 74 CertyIQ HOTSPOT - For each of the following statements, select Yes if the statement is true. Otherwise, select No. NOTE: Each correct selection is worth one point. Hot Area: Answer: Explanation: Reference: https://docs.microsoft.com/en-us/azure/azure-sql/database/sql-database-paas-overview Question: 75 CertyIQ HOTSPOT - You have the following SQL query. What are dbo.Products and ProductName? To answer, select the appropriate options in the answer area. NOTE: Each correct selection is worth one point. Hot Area: Answer: Question: 76 CertyIQ HOTSPOT - For each of the following statements, select Yes if the statement is true. Otherwise, select No. NOTE: Each correct selection is worth one point. Hot Area: Answer: Explanation: N/N/Y Can I bring my on-premises or IaaS SQL Server license to Hyperscale? Yes, Azure Hybrid Benefit... (https://docs.microsoft.com/en-us/azure/azure-sql/database/service-tier-hyperscale-frequently-asked- questions-faq https://azure.microsoft.com/en-us/pricing/hybrid-benefit/#calculator) Azure Hybrid Benefit allows you to use SQL Server licenses with Software Assurance or qualifying  subscription licenses to pay a reduced base rate* for these products and services for SQL Server on Azure: vCPU-based service tiers of Azure SQL Database (excluding serverless). Azure SQL Managed Instance. SQL Server in Azure Virtual Machines. SQL Server Integration Services. Reference: https://azure.microsoft.com/en-gb/blog/hot-patching-sql-server-engine-in-azure-sql-database/ https://azure.microsoft.com/en-us/services/sql-database/#product-overview Question: 77 CertyIQ Which statement is an example of Data Definition Language (DDL)? A. SELECT B. JOIN C. UPDATE D. CREATE Answer: D Explanation: Data Definition Language (DDL) statements defines data structures. Use these statements to create, alter, or drop data structures in a database. These statements include: ✑ ALTER ✑ Collations ✑ CREATE ✑ DROP ✑ DISABLE TRIGGER ✑ ENABLE TRIGGER ✑ RENAME ✑ UPDATE STATISTICS ✑ TRUNCATE TABLE ✑ INSERT Reference: https://docs.microsoft.com/en-us/sql/t-sql/statements/statements Question: 78 CertyIQ HOTSPOT - For each of the following statements, select Yes if the statement is true. Otherwise, select No. NOTE: Each correct selection is worth one point. Hot Area:  Answer: Explanation: Box 1: Yes - Azure Data Studio is a cross-platform database tool for data professionals using on-premises and cloud data platforms on Windows, macOS, and Linux. You can use Azure Data Studio to connect to an Azure SQL Database server. You'll then run Transact-SQL (T- SQL) statements to create and query Azure SQL databases. Box 2: No - SQL Server Management Studio is for configuring, managing, and administering all components within Microsoft SQL Server, not to create SQL notebooks. Instead use Azure Data Studio to create SQL notebook. Box 3: Yes - You can use the Azure Data Studio to restore databases. Reference: https://docs.microsoft.com/en-us/sql/azure-data-studio/what-is-azure-data-studio Question: 79 CertyIQ You are deploying a software as a service (SaaS) application that requires a relational database for Online Transaction Processing (OLTP). Which Azure service should you use to support the application?  A. Azure Cosmos DB B. Azure HDInsight C. Azure SQL Database D. Azure Synapse Analytics Answer: C Explanation: Azure SQL Database is relational database and a managed service. Incorrect Answers: A, B: Cosmos DB, HDInsight are non-relational databases. D: Azure Synapse Analytics is for data warehousing, not for Online Transaction Processing Reference: https://cloud.netapp.com/blog/azure-cvo-blg-azure-database-review-your-guide-for-database-assessment Question: 80 CertyIQ What are two benefits of platform as a service (PaaS) relational database offerings in Azure, such as Azure SQL Database? Each correct answer presents a complete solution. NOTE: Each correct selection is worth one point. A. access to the latest features B. complete control over backup and restore processes C. in-database machine learning services D. reduced administrative effort for managing the server infrastructure Answer: AD Explanation: A: Azure SQL Database is a fully managed platform as a service (PaaS) database engine that handles most of the database management functions such as upgrading, patching, backups, and monitoring without user involvement. D: SQL Database delivers predictable performance with multiple resource types, service tiers, and compute sizes. It provides dynamic scalability with no downtime, built-in intelligent optimization, global scalability and availability, and advanced security options. These capabilities allow you to focus on rapid app development and accelerating your time-to-market, rather than on managing virtual machines and infrastructure. Reference: https://docs.microsoft.com/en-us/azure/azure-sql/database/sql-database-paas-overview Question: 81 CertyIQ HOTSPOT - For each of the following statements, select Yes if the statement is true. Otherwise, select No. NOTE: Each correct selection is worth one point. Hot Area:  Answer: Explanation: Box 1: No - Microsoft handles all patching and updating of the SQL and operating system code. You don't have to manage the underlying infrastructure. Box 2: Yes - SQL Database is a fully managed service that has built-in high availability, backups, and other common maintenance operations. Box 3: No - Reference: https://docs.microsoft.com/en-us/azure/azure-sql/database/sql-database-paas-overview Question: 82 CertyIQ DRAG DROP - You have a table named Sales that contains the following data. You need to query the table to return the average sales amount per day. The output must produce the following results. How should you complete the query? To answer, drag the appropriate values to the correct targets. Each value may be used once, more than once, or not at all. You may need to drag the split bar between panes or scroll to view content. NOTE: Each correct selection is worth one point. Select and Place: Answer: Explanation: Box 1: SELECT - Box 2: GROUP BY -  Example: When used with a GROUP BY clause, each aggregate function produces a single value covering each group, instead of a single value covering the whole table. The following example produces summary values for each sales territory in the AdventureWorks2012 database. The summary lists the average bonus received by the sales people in each territory, and the sum of year-to-date sales for each territory. SELECT TerritoryID, AVG(Bonus)as 'Average bonus', SUM(SalesYTD) as 'YTD sales' FROM Sales.SalesPerson - GROUP BY TerritoryID; Reference: https://docs.microsoft.com/en-us/sql/t-sql/functions/avg-transact-sql Question: 83 CertyIQ When you create an Azure SQL database, which account can always connect to the database? A. the Azure Active Directory (Azure AD) account that created the database B. the server admin login account of the logical server C. the Azure Active Directory (Azure AD) administrator account D. the sa account Answer: B Explanation: When you first deploy Azure SQL, you specify an admin login and an associated password for that login. This administrative account is called Server admin. Reference: https://docs.microsoft.com/en-us/azure/azure-sql/database/single-database-create-quickstart Question: 84 CertyIQ Which statement is an example of Data Definition Language (DDL)? A. SELECT B. INSERT C. DELETE D. DROP Answer: D Explanation: Data Definition Language (DDL) statements defines data structures. Use these statements to create, alter, or drop data structures in a database. These statements include: ✑ ALTER ✑ Collations ✑ CREATE ✑ DROP ✑ DISABLE TRIGGER  ✑ ENABLE TRIGGER ✑ RENAME ✑ UPDATE STATISTICS ✑ TRUNCATE TABLE ✑ UPDATE Reference: https://docs.microsoft.com/en-us/sql/t-sql/statements/statements Question: 85 CertyIQ A team of developers has computers that run Windows 10 and Ubuntu Desktop. The developers need to connect to and query an Azure SQL database from each of their computers. The developers require code assistance features such as IntelliSense. What should the developers use? A. sqlcmd B. Microsoft SQL Server Management Studio (SSMS) C. Azure Data Studio D. Azure Data Explorer Answer: C Explanation: Azure Data Studio is a cross-platform database tool for data professionals who use on-premises and cloud data platforms on Windows, macOS, and Linux. Azure Data Studio offers a modern editor experience with IntelliSense, code snippets, source control integration, and an integrated terminal. Reference: https://docs.microsoft.com/en-us/sql/azure-data-studio/download-azure-data-studio Question: 86 CertyIQ HOTSPOT - To complete the sentence, select the appropriate option in the answer area. Hot Area: Answer:  Explanation: Transparent data encryption (TDE) helps protect Azure SQL Database, Azure SQL Managed Instance, and Azure Synapse Analytics against the threat of malicious offline activity by encrypting data at rest. Reference: https://docs.microsoft.com/en-us/azure/azure-sql/database/transparent-data-encryption-tde-overview? tabs=azure-portal Question: 87 CertyIQ You need to ensure that users use multi-factor authentication (MFA) when connecting to an Azure SQL database. Which type of authentication should you use? A. service principal authentication B. Azure Active Directory (Azure AD) authentication C. SQL authentication D. certificate authentication Answer: B Explanation: Other authentication types, such as service principal authentication, SQL authentication and certificate authentication, don't allow the use of MFA. Reference: https://docs.microsoft.com/en-us/azure/azure-sql/database/authentication-mfa-ssms-overview Question: 88 CertyIQ What is a benefit of hosting a database on Azure SQL managed instance as compared to an Azure SQL database? A. built-in high availability B. native support for cross-database queries and transactions C. system-initiated automatic backups D. support for encryption at rest Answer: B Explanation:  Reference: https://docs.microsoft.com/en-us/azure/azure-sql/database/features-comparison Question: 89 CertyIQ HOTSPOT - To complete the sentence, select the appropriate option in the answer area. Hot Area: Answer: Explanation: When you create a new server in Azure SQL Database or Azure Synapse Analytics named mysqlserver, for example, a server-level firewall blocks all access to the public endpoint for the server Reference: https://docs.microsoft.com/en-us/azure/security/fundamentals/infrastructure-sql Question: 90 CertyIQ You need to design and model a database by using a graphical tool that supports project-oriented offline database development. What should you use? A. Microsoft SQL Server Data Tools (SSDT) B. Microsoft SQL Server Management Studio (SSMS) C. Azure Databricks D. Azure Data Studio Answer: A Explanation: SQL Server Data Tools (SSDT) is a modern development tool for building SQL Server relational databases, databases in Azure SQL, Analysis Services (AS) data models, Integration Services (IS) packages, and  Reporting Services (RS) reports. With SSDT, you can design and deploy any SQL Server content type with the same ease as you would develop an application in Visual Studio. Reference: https://docs.microsoft.com/en-us/sql/ssdt/project-oriented-offline-database-development?view=sql-server- ver15 Question: 91 CertyIQ DRAG DROP - Match the security components to the appropriate scenarios. To answer, drag the appropriate component from the column on the left to its scenario on the right. Each component may be used once, more than once, or not at all. NOTE: Each correct match is worth one point. Select and Place: Answer: Explanation: Firewall (Example someone from outside cannot log in to your company domain because of different IP address) Authentication is always used to check who is authorized to log in Encry​ption Reference: https://docs.microsoft.com/en-us/sql/database-engine/configure-windows/configure-a-windows-firewall-for- database-engine-access?view=sql-server-ver15 https://docs.microsoft.com/en-us/azure/azure- sql/database/authentication-aad-overview https://docs.microsoft.com/en-us/azure/azure- sql/database/always-encrypted-certificate-store-configure Question: 92 CertyIQ You have a transactional application that stores data in an Azure SQL managed instance. When should you implement a read-only database replica? A. You need to generate reports without affecting the transactional workload.  B. You need to audit the transactional application. C. You need to implement high availability in the event of a regional outage. D. You need to improve the recovery point objective (RPO). Answer: A Explanation: Use read-only replicas to offload read-only query workloads. You should implement a read-only database replica when you need to generate reports without affecting the transactional workload. A read-only replica is a copy of the database that can be used for reporting or other read-only workloads without affecting the performance of the transactional application. This allows you to offload reporting and other read-only workloads to the replica, which can improve the performance of the transactional application. Reference: https://docs.microsoft.com/en-us/azure/azure-sql/database/read-scale-out Question: 93 CertyIQ HOTSPOT - To complete the sentence, select the appropriate option in the answer area. Hot Area: Answer: Question: 94 CertyIQ HOTSPOT - To complete the sentence, select the appropriate option in the answer area. Hot Area:  Answer: Explanation: Again RDBMS concepts primary key, unique key & foreign key concepts Reference: https://teachcomputerscience.com/relational-databases/ Question: 95 CertyIQ HOTSPOT - To complete the sentence, select the appropriate option in the answer area. Hot Area: Answer:  Explanation: heap: tables: without a clustered index. Stored procedure: a sub-routine available to access application in RDBMS A view: is a table that is being created based on a user query An index: a data structure that improves the speed of data retrieval operations The answer is obvious, A View Reference: https://docs.microsoft.com/en-us/sql/relational-databases/views/views Question: 96 CertyIQ You need to query a table named Products in an Azure SQL database. Which three requirements must be met to query the table from the internet? Each correct answer presents part of the solution. NOTE: Each correct selection is worth one point. A. You must be assigned the Reader role for the resource group that contains the database. B. You must have SELECT access to the Products table. C. You must have a user in the database. D. You must be assigned the Contributor role for the resource group that contains the database. E. Your IP address must be allowed to connect to the database. Answer: BCE Explanation: Incorrect Answers: A, D: Resource group permissions is not required to query an Azure SQL database table. Reference: https://docs.microsoft.com/en-us/sql/relational-databases/security/authentication-access/getting-started-wi th-database-engine-permissions?view=sql-server-ver15 Question: 97 CertyIQ Which clause should you use in a SELECT statement to combine rows in one table with rows in another table? A. SET  B. VALUES C. KEY D. JOIN Answer: D Explanation: Reference: https://www.tutorialspoint.com/sql/sql-using-joins.htm Question: 98 CertyIQ Your company needs to ensure that an Azure virtual machine can connect to Azure SQL databases without exposing the databases to the internet. What should you use? A. Azure Application Gateway B. Azure Traffic Manager C. Azure DNS D. Azure Private Link Answer: D Explanation: Azure Private Link enables you to access Azure PaaS Services (for example, Azure Storage and SQL Database) and Azure hosted customer-owned/partner services over a private endpoint in your virtual network. Traffic between your virtual network and the service travels the Microsoft backbone network. Exposing your service to the public internet is no longer necessary Reference: https://techcommunity.microsoft.com/t5/azure-database-support-blog/azure-sql-db-private-link-private-end point-connectivity/ba-p/1235573 Question: 99 CertyIQ DRAG DROP - Match the Azure SQL services to the appropriate use cases. To answer, drag the appropriate service from the column on the left to its use case on the right. Each service may be used once, more than once, or not at all. NOTE: Each correct match its worth one point. Select and Place: Answer: Explanation: Box 1: Azure SQL Database single database Serverless is a compute tier for single databases in Azure SQL Database that automatically scales compute based on workload demand and bills for the amount of compute used per second. The serverless compute tier also automatically pauses databases during inactive periods when only storage is billed and automatically resumes databases when activity returns. Scenarios well suited for serverless compute Single databases with intermittent, unpredictable usage patterns interspersed with periods of inactivity, and lower average compute utilization over time. Single databases in the provisioned compute tier that are frequently rescaled and customers who prefer to delegate compute rescaling to the service. New single databases without usage history where compute sizing is difficult or not possible to estimate prior to deployment in SQL Database. Box 2: Azure SQL Managed Instance Azure SQL Managed Instance is the intelligent, scalable cloud database service that combines the broadest SQL Server database engine compatibility with all the benefits of a fully managed and evergreen platform as a service. Box 3: Azure SQL Database elastic pool Azure SQL Database elastic pools are a simple, cost-effective solution for managing and scaling multiple databases that have varying and unpredictable usage demands. The databases in an elastic pool are on a single server and share a set number of resources at a set price. Elastic pools in SQL Database enable software as a service (SaaS) developers to optimize the price performance for a group of databases within a prescribed budget while delivering performance elasticity for each database. Reference: