Which of the following descriptions of VRRP versions are correct? (Multiple choice) A. VRRPv2 and VRRPv3 have different time intervals for sending advertisement messages. B. VRRPv2 and VRRPv3…

Question

Options

• AVRRPv2 and VRRPv3 have different time intervals for sending advertisement messages.
• BVRRPv2 and VRRPv3 support different network types
• CVRRP for IPv4 supports VRRPv2 and VRRPv3
• DVRRPv2 and VRRPv3 versions are compatible with each other

• A
  74% (29)
• B
  18% (7)
• D
  8% (3)

Explanation

A is correct because VRRPv2 expresses advertisement intervals in whole seconds (1–255s), while VRRPv3 uses centiseconds (1–4095 centiseconds), giving finer granularity - a meaningful protocol-level difference.

C is correct because VRRPv3 was designed to extend VRRP to IPv6, but it also retains support for IPv4, so IPv4 environments can run either VRRPv2 or VRRPv3.

B is wrong because both versions operate over the same link-layer network types (e.g., Ethernet). The real distinction is IP version support (v2 = IPv4 only; v3 = IPv4 + IPv6), not the underlying network type.

D is wrong because VRRPv2 and VRRPv3 are incompatible - different packet formats and timer units mean routers running different versions cannot form a valid VRRP group together.

Memory tip: Think "v3 = Centiseconds + Covers IPv6" - the two things v3 adds. Since v3 covers IPv4 too, IPv4 supports both, making C true. Since the timer unit changed, A is true. Since the packet formats differ, they can't mix (D false).

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