Which of the following is an example of a NoSQL database? MCQ with Answer and Explanation

Question

Share Report Error

Which of the following is an example of a NoSQL database?

A. MongoDB

B. MySQL

C. PostgreSQL

D. Oracle

Answer: Option A

Solution (By JKSSB Mock Tests)

MongoDB is a document-oriented NoSQL database. PostgreSQL, MySQL, and Oracle are RDBMS.

This question belongs to: Computer Database Management System (DBMS)

Request complete Subject PDF

Discuss this Question (0)

No comments yet. Be the first to start the discussion!

Practice More Database Management System (DBMS) Questions

Question #1

What is the purpose of the SQL 'CHECK' constraint?

A. To define relationships

B. To validate data based on a condition

C. To set a default value

D. To enforce uniqueness

View Answer & Solution Discuss

Get Complete Subject PDF for Computer

Correct Answer: Option B

Explanation:
CHECK constraint ensures that values in a column meet a specified condition, such as age > 0.

This question belongs to: Computer Database Management System (DBMS)

Question #2

Which of the following is a valid SQL statement to add a new column to a table?

A. Both A and C

B. ADD COLUMN TO table_name column_name datatype;

C. ALTER TABLE table_name ADD COLUMN column_name datatype;

D. ALTER TABLE table_name ADD column_name datatype;

View Answer & Solution Discuss

Get Complete Subject PDF for Computer

Correct Answer: Option A

Explanation:
Both 'ADD column_name datatype' and 'ADD COLUMN column_name datatype' are valid syntax in some DBMS, but standard SQL uses 'ADD column_name datatype'. However, many DBMS support both.

This question belongs to: Computer Database Management System (DBMS)

Question #3

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

A. Atomicity, Consistency, Isolation, Durability

B. Atomicity, Concurrency, Isolation, Durability

C. Atomicity, Consistency, Integrity, Durability

D. Atomicity, Consistency, Integrity, Data

View Answer & Solution Discuss

Get Complete Subject PDF for Computer

Correct Answer: Option A

Explanation:
ACID stands for Atomicity, Consistency, Isolation, and Durability, which are the key properties that guarantee reliable processing of database transactions.

This question belongs to: Computer Database Management System (DBMS)

Explore All Database Management System (DBMS) MCQs