Express.js Authentication Basics MCQ | Express.js Auth Multiple Choice Questions

Direction: Choose the correct option

What is authentication in web applications?

A. The process of logging activities

B. The process of determining what a user can access

C. The process of encrypting data

D. The process of verifying the identity of a user

Direction: Choose the correct option

Which HTTP header is commonly used to send credentials like tokens?

A. Token

B. Authentication

C. Cookie

D. Authorization

Direction: Choose the correct option

What is the difference between authentication and authorization?

A. Authentication verifies identity, authorization determines permissions

B. Authentication is for users, authorization is for servers

C. They are the same

D. Authentication is done first, then authorization later

Direction: Choose the correct option

Which middleware can be used to protect routes and check if a user is logged in?

A. express.auth()

B. A custom middleware that checks req.session or req.user

C. express.protect()

D. express.session()

Direction: Choose the correct option

What is a common way to store user passwords in a database?

A. As a hashed string using bcrypt

B. As a base64 encoded string

C. As plain text

D. As encrypted text

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