Database Systems and Predictive Analytics Quiz

Play an AI-generated podcast conversation about this lesson

Which technology delivers information from various data sources, including big data sources, in real-time and near-real time?

Data preparation
Distributed file stores
Data integration
Data virtualization (correct)

What is the primary function of data integration tools across solutions such as Amazon EMR, Apache Hive, and Hadoop?

Data virtualization
Data orchestration (correct)
Data cleansing and enrichment
Data storage and retrieval

What does data preparation software aim to do for diverse and messy data sets?

Encrypt the data for security
Aggregate the data into a single source
Store the data in a distributed file store
Ease the burden of sourcing, shaping, and cleansing the data (correct)

Which products conduct data cleansing and enrichment on large, high-velocity data sets using parallel operations on distributed data stores and databases?

Data quality products (A) Signup and view all the answers

What is the primary purpose of predictive analytics?

To discover, evaluate, optimize, and deploy predictive models by analyzing big data sources to improve business performance or mitigate risk. (B) Signup and view all the answers

Which type of databases include key-value, document, and graph databases?

NoSQL databases (A) Signup and view all the answers

What is the primary function of stream analytics software?

Filter, aggregate, enrich, and analyze a high throughput of data from multiple disparate live data sources. (B) Signup and view all the answers

What is the main function of in-memory data fabric?

Provides low-latency access and processing of large quantities of data by distributing data across the dynamic random access memory (DRAM), Flash, or SSD of a distributed computer system. (B) Signup and view all the answers

What is the purpose of the relational data model and SQL?

To define the structure of data and ensure its integrity using constraints like primary keys, foreign keys, and unique constraints. (B) Signup and view all the answers

What is the primary purpose of a relational database management system (RDBMS)?

Storing data in a tabular format (B) Signup and view all the answers

In the context of relational databases, what is the significance of Codd's 12 rules?

Defining the characteristics of a relational database system (B) Signup and view all the answers

What was the purpose of IBM's System R project initiated in 1974?

Developing a prototype RDBMS (A) Signup and view all the answers

What was the significance of Multics Relational Data Store, introduced in June 1976?

First commercial RDBMS available for purchase (D) Signup and view all the answers

Which language is commonly used for querying and updating relational databases?

SQL (Structured Query Language) (D) Signup and view all the answers

Which of the following is NOT an example of an RDBMS?

MongoDB (B) Signup and view all the answers

What is the unique key identifying each row in a table called?

Primary key (A) Signup and view all the answers

Which organization developed the first RDBMS relatively faithful to the relational model?

IBM UK Scientific Centre at Peterlee (D) Signup and view all the answers

What does a truly-relational database management system (TRDBMS) implement according to strict adherents to Codd's principles?

All of Codd's 12 rules (D) Signup and view all the answers

What concept was demonstrated by Codd to represent data relationships of arbitrary complexity?

Foreign keys (D) Signup and view all the answers