Database Architecture Quiz

<p>A language used to retrieve or change data in a database</p> Signup and view all the answers

<p>Computers</p> Signup and view all the answers

<p>All of the above</p> Signup and view all the answers

<p>Analysis</p> Signup and view all the answers

<p>Relationship</p> Signup and view all the answers

<p>Key</p> Signup and view all the answers

<p>Physical design</p> Signup and view all the answers

<p>Data independence</p> Signup and view all the answers

<p>All of the above</p> Signup and view all the answers

<p>Transaction manager</p> Signup and view all the answers

<p>Log</p> Signup and view all the answers

<p>Catalog</p> Signup and view all the answers

<p>Relational</p> Signup and view all the answers

<p>NoSQL</p> Signup and view all the answers

<p>Open source</p> Signup and view all the answers

<p>It is downloaded separately from MySQL.com.</p> Signup and view all the answers

<p>It returns an error code and description.</p> Signup and view all the answers

<p>A graphical user interface for interacting with MySQL Server.</p> Signup and view all the answers

<p>By connecting to MySQL Server running on the local machine or network.</p> Signup and view all the answers

<p>city, country, and countrylanguage</p> Signup and view all the answers

<p>To provide a graphical user interface for interacting with MySQL Server.</p> Signup and view all the answers

<p>Securing the database system against unauthorized users</p> Signup and view all the answers

<p>Balancing storage, response time, and support for data rules</p> Signup and view all the answers

<p>Data consistency with structural and business rules</p> Signup and view all the answers

<p>To ensure transactions are processed completely or not at all</p> Signup and view all the answers

<p>Partial results may be saved and the database may be left in an inconsistent state</p> Signup and view all the answers

<p>Conflicts may occur and data may become inconsistent</p> Signup and view all the answers

<p>False</p> Signup and view all the answers

<p>True</p> Signup and view all the answers

<p>False</p> Signup and view all the answers

<p>True</p> Signup and view all the answers

<p>True</p> Signup and view all the answers

<p>True</p> Signup and view all the answers

<p>False</p> Signup and view all the answers

<p>True</p> Signup and view all the answers

<p>True</p> Signup and view all the answers

<p>False</p> Signup and view all the answers

<p>True</p> Signup and view all the answers

<p>True</p> Signup and view all the answers

<p>True</p> Signup and view all the answers

<p>True</p> Signup and view all the answers

<p>True</p> Signup and view all the answers

<p>True</p> Signup and view all the answers

<p>True</p> Signup and view all the answers

<p>True</p> Signup and view all the answers

<p>True</p> Signup and view all the answers

<p>True</p> Signup and view all the answers

<p>True</p> Signup and view all the answers

<p>True</p> Signup and view all the answers

<p>False</p> Signup and view all the answers

<p>True</p> Signup and view all the answers

<p>True</p> Signup and view all the answers

<p>False</p> Signup and view all the answers

<p>True</p> Signup and view all the answers

<p>True</p> Signup and view all the answers

<p>True</p> Signup and view all the answers

<p>True</p> Signup and view all the answers

<p>Scope, Format, Access</p> Signup and view all the answers

<p>To store similar data in a standardized manner</p> Signup and view all the answers

<p>To retrieve or change data in a database</p> Signup and view all the answers

<p>To ensure data is secure, internally consistent, and available at all times</p> Signup and view all the answers

<p>On computers</p> Signup and view all the answers

<p>To read and write data in a database</p> Signup and view all the answers

<p>Create, Read, Update, Delete data</p> Signup and view all the answers

<p>To ensure transactions are properly executed and prevent conflicts between concurrent transactions</p> Signup and view all the answers

<p>To store a complete record of all inserts, updates, and deletes processed by the database</p> Signup and view all the answers

<p>A directory of tables, columns, indexes, and other database objects</p> Signup and view all the answers

<p>'Does not support SQL'</p> Signup and view all the answers

<p>UPDATE</p> Signup and view all the answers

<p>Analysis, Logical design, Physical design</p> Signup and view all the answers

<p>To specify database requirements without regard to a specific database system</p> Signup and view all the answers

<p>To implement database requirements in a specific database system</p> Signup and view all the answers

<p>To add indexes and specify how tables are organized on storage media</p> Signup and view all the answers

<p>The principle that physical design never affects query results</p> Signup and view all the answers

<p>To link a host programming language to a database and handle details such as connecting to the database, executing queries, and returning results</p> Signup and view all the answers

<p>Performance, Authorization, Security, Rules, Recovery</p> Signup and view all the answers

<p>A transaction is a group of queries that must be either completed or rejected as a whole. It ensures that queries are processed completely or not at all, prevents conflicts between concurrent transactions, and ensures that transaction results are never lost.</p> Signup and view all the answers

<p>A conflict may occur, such as two users trying to access and modify the same data simultaneously, leading to inconsistent or incorrect data.</p> Signup and view all the answers

<p>A database administrator is responsible for securing the database system against unauthorized users, enforcing procedures for user access and database system availability.</p> Signup and view all the answers

<p>A database designer determines the format of each data element and the overall database structure, balancing priorities such as storage, response time, and support for data governance rules.</p> Signup and view all the answers

<p>A database programmer develops computer programs that utilize a database, writing applications that combine database query languages and general-purpose programming languages.</p> Signup and view all the answers

<p>MySQL Workbench is a graphical user interface that allows developers to execute SQL commands using an editor.</p> Signup and view all the answers

<p>A specialized challenge in database programming is combining database query languages and general-purpose programming languages.</p> Signup and view all the answers

<p>A key requirement for large, complex databases shared by many users is ensuring transactions are properly executed and conflicts between concurrent transactions are prevented.</p> Signup and view all the answers

<p>A database structure ensures that physical design never affects query results in a relational database.</p> Signup and view all the answers

<p>According to the text, data can vary in terms of accuracy, timeliness, and completeness.</p> Signup and view all the answers

<p>A database system is also known as a database management system (DBMS).</p> Signup and view all the answers

<p>pandemics</p> Signup and view all the answers

<p>video</p> Signup and view all the answers

<p>publicly</p> Signup and view all the answers

<p>structured</p> Signup and view all the answers

<p>DBMS</p> Signup and view all the answers

<p>database</p> Signup and view all the answers

<p>Performance</p> Signup and view all the answers

<p>Authorization</p> Signup and view all the answers

<p>Security</p> Signup and view all the answers

<p>Rules</p> Signup and view all the answers

<p>Recovery</p> Signup and view all the answers

<p>True</p> Signup and view all the answers

<p>thing</p> Signup and view all the answers

<p>database</p> Signup and view all the answers

<p>TABLE</p> Signup and view all the answers

<p>storage</p> Signup and view all the answers

<p>API</p> Signup and view all the answers

<p>download</p> Signup and view all the answers

<p>Delete</p> Signup and view all the answers

<p>Names</p> Signup and view all the answers

<p>Deletes</p> Signup and view all the answers

<p>SQL</p> Signup and view all the answers

<p>Create</p> Signup and view all the answers

<p>SQL</p> Signup and view all the answers

<p>world</p> Signup and view all the answers

<p>world</p> Signup and view all the answers

<p>editor</p> Signup and view all the answers

<p>local</p> Signup and view all the answers

<p>text</p> Signup and view all the answers

<p>command-line</p> Signup and view all the answers

<p>Query Processor = Interprets queries, creates a plan to modify the database or retrieve data, and performs query optimization Storage Manager = Translates the query processor instructions into low-level file-system commands that modify or retrieve data Transaction Manager = Ensures transactions are properly executed and restores the database to a consistent state in the event of a transaction or system failure Catalog = A directory of tables, columns, indexes, and other database objects used to process and execute queries</p> Signup and view all the answers

<p>INSERT = Inserts rows into a table SELECT = Retrieves data from a table UPDATE = Modifies data in a table DELETE = Deletes rows from a table</p> Signup and view all the answers

<p>INT = Stores integer values DECIMAL = Stores fractional numeric values VARCHAR = Stores textual values DATE = Stores year, month, and day</p> Signup and view all the answers

<p>Oracle Database = Relational, Commercial MySQL = Relational, Open Source SQL Server = Relational, Commercial MongoDB = NoSQL, Open Source</p> Signup and view all the answers

<p>CRUD = Create, Read, Update, and Delete SQL = Structured Query Language NoSQL = 'Not only SQL' DBMS = Database Management System</p> Signup and view all the answers

<p>Big Data = Massive volumes of online data, often with poorly structured or missing information Open Source = Software that anyone can inspect, copy, and modify with no licensing fee Query Language = A computer programming language for writing database queries Relational Database = A database that stores data in tables, columns, and rows, similar to a spreadsheet</p> Signup and view all the answers

<p>VARCHAR(10) = A data type that indicates ten characters DECIMAL(10, 3) = A data type that indicates ten significant digits, including three after the decimal point ER Diagram = A diagram in which rectangles represent entities, lines between rectangles represent relationships, and text inside rectangles represent attributes Data Independence = The principle that physical design never affects query results and allows database designers to tune query performance without changes to application programs</p> Signup and view all the answers

<p>Analysis Phase = This phase specifies database requirements without regard to a specific database system and requirements are represented as entities, relationships, and attributes Logical Design Phase = This phase implements database requirements in a specific database system and converts entities, relationships, and attributes into tables, keys, and columns Physical Design Phase = This phase adds indexes and specifies how tables are organized on storage media</p> Signup and view all the answers

<p>API = A library of procedures or classes that links a host programming language to a database SQL = The standard relational query language that lacks important programming features and is usually combined with a general-purpose programming language JDBC = A library of Java classes that access relational databases</p> Signup and view all the answers

<p>MySQL Command-Line Client = A text interface included in the MySQL Server download that allows developers to connect to the database server, perform administrative functions, and execute SQL statements 'world' database = A database that is usually installed with MySQL and can be used to execute SQL commands</p> Signup and view all the answers

<p>Logical Design = Affects the query result Physical Design = Affects query processing speed but never affects the query result</p> Signup and view all the answers

<p>Analysis = Conceptual Design Data Independence = Information Independence</p> Signup and view all the answers

<p>Data = Numeric, textual, visual, or audio information that describes real-world systems Database = A collection of data in a structured format Database system = Software that reads and writes data in a database Query = A request to retrieve or change data in a database</p> Signup and view all the answers

<p>Scope = A small business might track an inventory of a few thousand items, but a large commerce website might track billions of items. Format = A phone's proximity sensor generates raw numbers, and a satellite captures images. Access = A retail company may use private customer data to discover purchasing behavior patterns, but a government may be required by law to share certain data sets.</p> Signup and view all the answers

<p>Query = A request to retrieve or change data in a database Database system = Also known as a database management system or DBMS, it ensures data is secure, internally consistent, and available at all times. Query language = A specialized programming language, designed specifically for database systems</p> Signup and view all the answers

<p>Database = A collection of data in a structured format DBMS = Software that reads and writes data in a database Query = A request to retrieve or change data in a database Query Language = A specialized programming language, designed specifically for database systems</p> Signup and view all the answers

<p>Scope = The amount of data produced and collected can vary Format = Data may be produced as numbers, text, image, audio, or video Access = Some data sources are private while others are made publicly available</p> Signup and view all the answers

<p>Data = Numeric, textual, visual, or audio information that describes real-world systems Database = A collection of data in a structured format DBMS = A software that reads and writes data in a database Query = A request to retrieve or change data in a database</p> Signup and view all the answers

<p>MySQL Server = Returns an error code and description when an SQL statement is incorrect or unexecutable MySQL Workbench = Installed with MySQL Server and allows developers to execute SQL commands using an editor World database = A database that contains three tables: city, country, and countrylanguage MySQL Command-Line Client = A text interface included with MySQL Server</p> Signup and view all the answers

<p>City = A table in the world database Country = A table in the world database CountryLanguage = A table in the world database World database = A database that can be downloaded from MySQL.com</p> Signup and view all the answers

<p>MySQL Server = Returns error codes and descriptions for incorrect or unexecutable SQL statements MySQL Workbench = Provides a graphical user interface to interact with MySQL Server World database = Used for practicing SQL statements MySQL Command-Line Client = A text interface for MySQL Server</p> Signup and view all the answers

<p>MySQL Server = Returns error codes for incorrect or unexecutable SQL statements MySQL Workbench = A graphical user interface for MySQL Server World database = A database that contains the city, country, and countrylanguage tables MySQL.com = The website where the world database can be downloaded</p> Signup and view all the answers

<p>MySQL Server = Can return error codes and descriptions for incorrect SQL statements MySQL Workbench = Allows developers to execute SQL commands using an editor World database = Contains the city, country, and countrylanguage tables MySQL Command-Line Client = A text interface for MySQL Server included in the installation</p> Signup and view all the answers

<p>MySQL Server = Returns error codes and descriptions when SQL statements are incorrect or unexecutable MySQL Workbench = Allows developers to interact with MySQL Server via a graphical user interface World database = A database for practicing SQL statements MySQL Command-Line Client = A text interface included in the MySQL Server</p> Signup and view all the answers

<p>Database Administrator = Responsible for securing the database system against unauthorized users Database Designer = Determines the format of each data element and the overall database structure Database Programmer = Develops computer programs that utilize a database Database User = A consumer of data in a database</p> Signup and view all the answers

<p>Performance = Maintaining fast response times by structuring data properly on storage media and processing queries efficiently Authorization = Authorizing individual users to access specific data Security = Ensuring authorized users only access permissible data and protecting against hackers by encrypting data and restricting access Rules = Ensuring data is consistent with structural and business rules</p> Signup and view all the answers

<p>Ensuring transactions are processed completely or not at all = Restoring the database to the values prior to the transaction in case of failure during processing Preventing conflicts between concurrent transactions = Avoiding conflicts when multiple transactions access the same data at the same time Ensuring transaction results are never lost = Saving transaction results on storage media, regardless of application or computer failures</p> Signup and view all the answers

<p>Query languages = Read and write data efficiently Database application = Software that helps business users interact with database systems Database systems = Ensure authorized users only access permissible data, protect against hackers, and maintain fast response times</p> Signup and view all the answers

<p>Failure while processing a transaction = The database system must reverse partial results and restore the database to the values prior to the transaction Conflict between concurrent transactions = Database systems must prevent conflicts when multiple transactions access the same data at the same time Loss of transaction results due to application or computer failures = Transaction results must always be saved on storage media</p> Signup and view all the answers

<p>Database Administrator = Enforces procedures for user access and database system availability Database Designer = Balances priorities including storage, response time, and support for rules that govern the data Database Programmer = Writes applications that combine database query languages and general-purpose programming languages Database User = Requests, updates, or uses stored data to generate reports or information</p> Signup and view all the answers

<p>Database Administrator = Responsible for securing the database system against unauthorized users and enforcing procedures for user access Database Designer = Determines the format of each data element and the overall database structure Database Programmer = Develops computer programs that utilize a database Database User = Consumer of data in a database</p> Signup and view all the answers

<p>Performance = Maintain fast response times by structuring data properly on storage media and processing queries efficiently Authorization = Authorize individual users to access specific data Security = Ensure authorized users only access permissible data, protect against hackers by encrypting data and restricting access Rules = Ensure data is consistent with structural and business rules</p> Signup and view all the answers

<p>Ensure transactions are processed completely or not at all = A computer or application might fail while processing a transaction, database system must reverse partial results and restore the database to the values prior to the transaction Prevent conflicts between concurrent transactions = When multiple transactions access the same data at the same time, a conflict may occur Ensure transaction results are never lost = Once a transaction completes, transaction results must always be saved on storage media, regardless of application or computer failures</p> Signup and view all the answers

<p>Performance = Fast response times by structuring data properly on storage media and processing queries efficiently Authorization = Limiting access of specific users to specific tables, columns, or rows of a database Security = Protection against unauthorized access and data encryption Recovery = Restoration of database to a consistent state without loss of data after a failure</p> Signup and view all the answers

<p>Database administrator = Securing the database system against unauthorized users Database designer = Determining the format of each data element and the overall database structure Database programmer = Developing computer programs that utilize a database Database user = Consuming data in a database</p> Signup and view all the answers

<p>Performance = Maintaining fast response times by structuring data on storage media and processing queries efficiently Authorization = Granting individual users access to specific data Security = Ensuring data is accessed by authorized users only and protecting against hackers Rules = Ensuring data is consistent with structural and business rules</p> Signup and view all the answers

<p>Data Storage Language (DSL)</p> Signup and view all the answers

<p>CREATE DATABASE</p> Signup and view all the answers

<p>DROP DATABASE</p> Signup and view all the answers

<p>SELECT *</p> Signup and view all the answers

<p>WHERE clause</p> Signup and view all the answers

<p>Inserting NULL values</p> Signup and view all the answers

<p>UPDATE statement</p> Signup and view all the answers

<p>To identify a row</p> Signup and view all the answers

<p>BIGINT</p> Signup and view all the answers

<p>%</p> Signup and view all the answers

<p>CHAR(N)</p> Signup and view all the answers

<p>AND</p> Signup and view all the answers

<p>Relational Table</p> Signup and view all the answers

<p>An unordered collection of elements enclosed in braces</p> Signup and view all the answers

<p>Relation</p> Signup and view all the answers

<p>To perform set operations on tables</p> Signup and view all the answers

<p>A table must have at least one column and any number of rows.</p> Signup and view all the answers

<p>To create a new table by specifying the table name, column names, and column data types.</p> Signup and view all the answers

<p>Decimal data types</p> Signup and view all the answers

<p>To add, delete, or modify columns on an existing table.</p> Signup and view all the answers

<p>AUTO_INCREMENT</p> Signup and view all the answers

<p>To refer to a primary key</p> Signup and view all the answers

<p>Matching foreign keys are updated to the same value</p> Signup and view all the answers

<p>The insert is rejected</p> Signup and view all the answers

<p>PRIMARY KEY</p> Signup and view all the answers

<p>Both in the column declaration and a separate clause</p> Signup and view all the answers

<p>An expression on one or more columns of a table</p> Signup and view all the answers

<p>When the expression is FALSE</p> Signup and view all the answers

<p>After the column name and data type</p> Signup and view all the answers

<p>In a separate clause</p> Signup and view all the answers

<p>True</p> Signup and view all the answers

<p>False</p> Signup and view all the answers

<p>True</p> Signup and view all the answers

<p>True</p> Signup and view all the answers

<p>True</p> Signup and view all the answers

<p>True</p> Signup and view all the answers

<p>True</p> Signup and view all the answers

<p>False</p> Signup and view all the answers

<p>True</p> Signup and view all the answers

<p>False</p> Signup and view all the answers

<p>True</p> Signup and view all the answers

<p>True</p> Signup and view all the answers

<p>False</p> Signup and view all the answers

<p>True</p> Signup and view all the answers

<p>True</p> Signup and view all the answers

<p>True</p> Signup and view all the answers

<p>True</p> Signup and view all the answers

<p>True</p> Signup and view all the answers

<p>True</p> Signup and view all the answers

<p>True</p> Signup and view all the answers

<p>False</p> Signup and view all the answers

<p>True</p> Signup and view all the answers

<p>True</p> Signup and view all the answers

<p>True</p> Signup and view all the answers

<p>False</p> Signup and view all the answers

<p>False</p> Signup and view all the answers

<p>True</p> Signup and view all the answers

<p>False</p> Signup and view all the answers

<p>True</p> Signup and view all the answers

<p>True</p> Signup and view all the answers

<p>Name</p> Signup and view all the answers

<p>DATABASE</p> Signup and view all the answers

<p>DATABASE</p> Signup and view all the answers

<p>DatabaseName</p> Signup and view all the answers

<p>numeric</p> Signup and view all the answers

<p>unary</p> Signup and view all the answers

<p>table</p> Signup and view all the answers

<p>column names</p> Signup and view all the answers

<p>columns</p> Signup and view all the answers

<p>drawn</p> Signup and view all the answers

<p>column</p> Signup and view all the answers

<p>data types</p> Signup and view all the answers

<p>updated</p> Signup and view all the answers

<p>table</p> Signup and view all the answers

<p>database</p> Signup and view all the answers

<p>multiple</p> Signup and view all the answers

<p>column</p> Signup and view all the answers

<p>table</p> Signup and view all the answers

<p>table</p> Signup and view all the answers

<p>table</p> Signup and view all the answers

<p>single</p> Signup and view all the answers

<p>table</p> Signup and view all the answers

<p>Database models provide a conceptual framework for database systems, with three parts: ⦁ Data structures that prescribe how data is organized. ⦁ Operations that manipulate data structures. ⦁ Rules that govern valid data.</p> Signup and view all the answers

<p>set</p> Signup and view all the answers

<p>tables</p> Signup and view all the answers

<p>set</p> Signup and view all the answers

<p>auto-increment</p> Signup and view all the answers

<p>NULL</p> Signup and view all the answers

<p>referential integrity</p> Signup and view all the answers

<p>update</p> Signup and view all the answers