SIP Security

Question 1

Which SIP authentication mechanism involves sending a challenge-response pair to verify user credentials?

Accepted Answer

Digest Authentication

Answer

Basic Authentication

Answer

Kerberos Authentication

Answer

OAuth Authentication

Question 2

Which protocol is commonly used to encrypt SIP signaling to protect against eavesdropping?

Accepted Answer

TLS (Transport Layer Security)

Answer

HTTP

Answer

IPsec (Internet Protocol Security)

Answer

SSH (Secure Shell)

Question 3

What is SIP spoofing?

Accepted Answer

An attack where an attacker pretends to be a legitimate SIP entity by falsifying their SIP headers

Answer

A method for encrypting SIP messages

Answer

A technique for optimizing SIP message delivery

Answer

A process for securing SIP endpoints with firewalls

Question 4

Which type of attack involves overwhelming a SIP server with a high volume of requests to disrupt its operation?

Accepted Answer

Denial of Service (DoS) Attack

Answer

Phishing Attack

Answer

Man-in-the-Middle Attack

Answer

Replay Attack

Question 5

To ensure secure communication in SIP, which of the following practices is recommended?

Accepted Answer

Implement SIP over TLS and use secure authentication methods

Answer

Use SIP over plain UDP for faster communication

Answer

Disable encryption to simplify configuration

Answer

Avoid using authentication to reduce complexity