CCIE Routing and Switching (legacy) — Question 33

Which two statements about VRRP are true? (Choose two.)

Answer options

• A. It is assigned multicast address 224.0.0.18.
• B. The TTL for VRRP packets must be 255.
• C. It is assigned multicast address 224.0.0.9.
• D. Its IP protocol number is 115.
• E. Three versions of the VRRP protocol have been defined.
• F. It supports both MD5 and SHA1 authentication.

Correct answer: A, B

Explanation

The correct answers, A and B, are true because VRRP uses the multicast address 224.0.0.18 and requires a TTL of 255 for its packets. The other options are incorrect as they either state incorrect multicast addresses, reference the wrong protocol number, or provide details about the number of versions or authentication methods that are not accurate.