Q
Which of the following is commonly used for user authentication in PHP?

Answer & Solution

Answer: Option A
Solution:
Username and password authentication is a common method used for user authentication in PHP web applications. Users provide their credentials to authenticate themselves.
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What is the purpose of the session_write_close() function in PHP?

A). Writes session data and closes the session file

B). Opens a new session file for writing

C). Ends the current session and deletes session data

D). Retrieves the session data from the session file

Which PHP function is used to set session cookie attributes?

A). session_set_cookie_params()

B). set_session_cookie_attributes()

C). configure_session_cookie()

D). modify_session_cookie()

What is the primary benefit of salting passwords before hashing?

A). To prevent rainbow table attacks

B). To increase server performance

C). To encrypt session data

D). To generate random session IDs

What does the session_regenerate_id() function do in PHP?

A). Regenerates the session ID to prevent session fixation

B). Registers a new session ID with the server

C). Retrieves the session ID from the server

D). Ends the current session and deletes session data

What is the purpose of session management in PHP web applications?

A). To maintain stateful information across multiple requests

B). To optimize database queries

C). To handle user authentication

D). To manage server configurations

How can you destroy a session in PHP?

A). session_destroy()

B). destroy_session()

C). end_session()

D). remove_session()

How can you prevent session fixation attacks in PHP?

A). Regenerate session IDs after successful authentication

B). Use weak session IDs

C). Store session IDs in plaintext

D). Disable session management entirely

Which of the following is a security best practice for session management?

A). Use HTTPS to encrypt session data during transmission

B). Store session data in plaintext on the server

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Which PHP function is commonly used to hash passwords?

A). password_hash()

B). hash_password()

C). encrypt_password()

D). secure_hash()

What is the purpose of user authentication in PHP web applications?

A). To verify the identity of users accessing the application

B). To optimize database queries

C). To manage user sessions

D). To handle server configurations