Express.js Database Basics MCQ | Express.js Database Integration Multiple Choice Questions

Direction: Choose the correct option

What is the role of a database in an Express application?

A. To serve static files

B. To persist and manage data

C. To handle HTTP requests

D. To render views

Direction: Choose the correct option

Which of the following is a NoSQL database commonly used with Express?

A. SQLite

B. MySQL

C. PostgreSQL

D. MongoDB

Direction: Choose the correct option

What is an ORM/ODM?

A. A server

B. A type of database

C. A query language

D. A library that maps database records to objects in code

Direction: Choose the correct option

How do you typically connect to a database in an Express app?

A. Using a database driver or ORM/ODM in your startup code

B. By using middleware

C. By configuring the server

D. By writing raw SQL in route handlers

Direction: Choose the correct option

Why should database connection details (like passwords) not be hardcoded?

A. To avoid syntax errors

B. For security and flexibility

C. Because Express doesn't support hardcoding

D. To improve performance

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