H12-311_V3.0 · Question #432
During the roaming process, which packets may be improperly processed to cause tunnel aggregation problems? (Multiple choice)
The correct answer is B. broadcasting C. Multicast. During wireless roaming, broadcast and multicast packets are inherently "one-to-many" by nature - when a client moves between access points and the old tunnel isn't torn down cleanly, these packets get replicated and flooded across multiple tunnels simultaneously, creating…
Question
During the roaming process, which packets may be improperly processed to cause tunnel aggregation problems? (Multiple choice)
Options
- AUnknown unicast
- Bbroadcasting
- CMulticast
- DMulticast
How the community answered
(36 responses)- A19% (7)
- B72% (26)
- D8% (3)
Explanation
During wireless roaming, broadcast and multicast packets are inherently "one-to-many" by nature - when a client moves between access points and the old tunnel isn't torn down cleanly, these packets get replicated and flooded across multiple tunnels simultaneously, creating tunnel aggregation (traffic pileup/duplication) problems. Unicast traffic (known or unknown destination) is point-to-point and either forwarded to a specific MAC or handled by flooding a single path, so it doesn't trigger the same multi-tunnel replication behavior. Option D appears to be a duplicate of option C (likely a typo in the source material for "Multicast"), which is why both B and C share the same underlying reason for being correct.
Memory tip: Think "BM = Bad Multipliers" - Broadcast and Multicast both multiply traffic across tunnels during roaming, while unicast stays point-to-point and won't aggregate.
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