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Database Fundamentals

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Questions and Answers

What is the primary purpose of a database?

To store and retrieve data efficiently (correct)
To create visually appealing charts
To manage computer hardware
To run operating systems

Which component is NOT a typical part of a database system?

User interface
CPU Fan (correct)
DBMS software
Database

What does DBMS stand for?

Digital Business Marketing Solution
Document Binary Manipulation Software
Database Management System (correct)
Data Backup Management System

Which of the following is a popular DBMS?

MySQL (B) Signup and view all the answers

What is the role of a database administrator (DBA)?

Managing and maintaining the database system (C) Signup and view all the answers

What is a database schema?

The structure and organization of a database (C) Signup and view all the answers

What is a table in a relational database?

A collection of related records with columns and rows (C) Signup and view all the answers

What is a query in the context of databases?

A request for data from the database (A) Signup and view all the answers

Which SQL command is used to retrieve data from a database?

SELECT (C) Signup and view all the answers

What is the purpose of a primary key in a database table?

To uniquely identify each record in the table (D) Signup and view all the answers

Which of these is a characteristic of a relational database?

Data is stored in tables with rows and columns (A) Signup and view all the answers

What does ACID stand for in the context of database transactions?

Atomicity, Consistency, Isolation, Durability (C) Signup and view all the answers

Which SQL command is used to add new data to a database table?

INSERT (A) Signup and view all the answers

What is data normalization?

Organizing data to reduce redundancy and improve data integrity (D) Signup and view all the answers

What is the purpose of a foreign key?

To establish a link between two tables (D) Signup and view all the answers

Which SQL command is used to modify existing data in a database table?

UPDATE (D) Signup and view all the answers

What is a data type in a database?

A specification of the kind of values a field can hold (A) Signup and view all the answers

Which SQL command is used to remove data from a database table?

DELETE (C) Signup and view all the answers

What is an index in a database?

A pointer to data in a table to speed up searches (A) Signup and view all the answers

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