DBMS Features and Abstractions Quiz

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What is the primary purpose of the ANSI-SPARC three-level architecture?

To provide a framework for describing general database concepts and structures. (correct)

To define a single unified schema for all database applications.

To standardize the physical storage format for all database systems.

To enforce data and program independence across all database systems.

Which of the following is NOT one of the three levels of data abstraction in the ANSI-SPARC architecture?

Logical schema (correct)

Conceptual schema

Internal (physical) schema

External schema

What is the purpose of the external schema in the ANSI-SPARC architecture?

To provide a comprehensive view of the entire database.

To represent the logical structure of the database.

To provide a user-specific view of the database. (correct)

To define the physical storage structure of the database.

Which level of the ANSI-SPARC architecture is closest to the physical storage level?

Internal (physical) schema Signup and view all the answers

What is the purpose of the conceptual schema in the ANSI-SPARC architecture?

To provide a comprehensive view of the entire database. Signup and view all the answers

According to the ANSI-SPARC architecture, which component is responsible for storing the database description (schema)?

A separate catalog Signup and view all the answers

Which of the following levels represents the view of the database as seen by individual users?

External level Signup and view all the answers

Which level describes the logical structure of all data in the database and is defined by a Data Definition Language (DDL)?

Conceptual level Signup and view all the answers

What is the primary purpose of the Data Definition Language (DDL) used to define the conceptual schema?

To define the logical structure and constraints of the entire database Signup and view all the answers

Which of the following statements is true about the role of the external and conceptual levels in database design?

They help communicate the development process among various users and designers Signup and view all the answers

What is the primary purpose of the internal level in a database management system?

To describe the implementation of the conceptual schema using physical storage structures Signup and view all the answers

Based on the example provided, what data type is used for the `sid` attribute in the `Students` table?

string Signup and view all the answers

DBMS Features and Abstractions Quiz

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Questions and Answers

What is the primary purpose of the ANSI-SPARC three-level architecture?

Which of the following is NOT one of the three levels of data abstraction in the ANSI-SPARC architecture?

What is the purpose of the external schema in the ANSI-SPARC architecture?

Which level of the ANSI-SPARC architecture is closest to the physical storage level?

What is the purpose of the conceptual schema in the ANSI-SPARC architecture?

According to the ANSI-SPARC architecture, which component is responsible for storing the database description (schema)?

Which of the following levels represents the view of the database as seen by individual users?

Which level describes the logical structure of all data in the database and is defined by a Data Definition Language (DDL)?

What is the primary purpose of the Data Definition Language (DDL) used to define the conceptual schema?

Which of the following statements is true about the role of the external and conceptual levels in database design?

What is the primary purpose of the internal level in a database management system?

Based on the example provided, what data type is used for the `sid` attribute in the `Students` table?

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DBMS Features and Abstractions Quiz

Podcast Beta

Questions and Answers

What is the primary purpose of the ANSI-SPARC three-level architecture?

Which of the following is NOT one of the three levels of data abstraction in the ANSI-SPARC architecture?

What is the purpose of the external schema in the ANSI-SPARC architecture?

Which level of the ANSI-SPARC architecture is closest to the physical storage level?

What is the purpose of the conceptual schema in the ANSI-SPARC architecture?

According to the ANSI-SPARC architecture, which component is responsible for storing the database description (schema)?

Which of the following levels represents the view of the database as seen by individual users?

Which level describes the logical structure of all data in the database and is defined by a Data Definition Language (DDL)?

What is the primary purpose of the Data Definition Language (DDL) used to define the conceptual schema?

Which of the following statements is true about the role of the external and conceptual levels in database design?

What is the primary purpose of the internal level in a database management system?

Based on the example provided, what data type is used for the sid attribute in the Students table?

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Based on the example provided, what data type is used for the `sid` attribute in the `Students` table?