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

Answer & Solution

Answer: Option A
Solution:
User authentication in PHP web applications is used to verify the identity of users accessing the application, ensuring that only authorized users can access restricted resources.
Related Questions on Average

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 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 PHP function is used to start a new session?

A). session_start()

B). start_session()

C). init_session()

D). new_session()

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 does the $_SESSION superglobal array store in PHP?

A). Session data

B). User credentials

C). Database queries

D). HTML markup

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

A). Username and password

B). Session ID

C). IP address

D). URL parameters

What is the purpose of using prepared statements in user authentication?

A). To prevent SQL injection attacks

B). To optimize database queries

C). To increase server performance

D). To store session data securely

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

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