Which statement describes L2 Multicast as implemented on the PowerEdge MX7000 IOM?

Question

Options

• AMLD snooping and IGMP control or limit the flooding of IPv6 multicast traffic on VLANs.
• BMLD snooping and IGMP control or limit the flooding of IPv4 multicast traffic on VLANs.
• CMLD snooping controls the flooding of IPv6 multicast traffic on VLANs while the IGMP limits the
• DMLD snooping controls the flooding of IPv4 multicast traffic on VLANs while the IGMP limits the

• A
  3% (1)
• C
  90% (26)
• D
  7% (2)

Explanation

Option C is correct because it accurately assigns each protocol to its respective IP version: MLD (Multicast Listener Discovery) snooping is specifically designed to control the flooding of IPv6 multicast traffic on VLANs, while IGMP (Internet Group Management Protocol) handles IPv4 multicast traffic - they are distinct protocols serving different IP versions, not interchangeable.

Why the distractors fail:

• A & B are wrong because they incorrectly pair MLD and IGMP together as if they jointly manage a single IP version - IGMP is IPv4-only and MLD is IPv6-only; they do not share a version.
• D is wrong because it swaps the associations - it incorrectly assigns MLD to IPv4 and (implicitly) IGMP to IPv6, which is the exact opposite of how these protocols work.

Memory tip: Use the number embedded in the companion protocol - IGMP goes with IPv4 (both are the "older generation"), and MLD goes with IPv6 (both are the "newer generation"). Alternatively: "I" in IGMP → "I" in IPv4.

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