Q
What is the role of hashing in user authentication?

Answer & Solution

Answer: Option A
Solution:
Hashing is used to securely store passwords by converting them into irreversible hash values, preventing plaintext passwords from being exposed in case of data breaches.
Related Questions on Average

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

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

How can you handle user authentication in PHP using a database?

A). Query the database to validate user credentials

B). Use session variables to track user sessions

C). Store passwords in plaintext

D). Validate user credentials in URL parameters

How can you implement remember me functionality in PHP?

A). By using persistent cookies with long expiration times

B). By storing passwords in plaintext

C). By disabling session management

D). By using URL parameters for authentication

Which PHP function is used to start a new session?

A). session_start()

B). start_session()

C). init_session()

D). new_session()

How can you destroy a session in PHP?

A). session_destroy()

B). destroy_session()

C). end_session()

D). remove_session()

What is the recommended approach for handling session data in PHP forms?

A). Use form validation and CSRF tokens

B). Store session data in hidden form fields

C). Use plaintext passwords for form authentication

D). Share session data in URL parameters

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

C). Set session cookies to expire after every request

D). Share session IDs in URL parameters

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()