H12-821_V1.0 · Question #767
When dual-link hot backup is configured in a WLAN group, the AP will establish CAPWAP links with the primary AC and backup AC respectively.
The correct answer is A. TRUE. A is correct because dual-link hot backup is specifically designed so the AP simultaneously maintains active CAPWAP tunnel connections to both the primary AC and the backup AC - this is what distinguishes it from single-link backup, where the AP only connects to the backup…
Question
Options
- ATRUE
- BFALSE
How the community answered
(39 responses)- A82% (32)
- B18% (7)
Explanation
A is correct because dual-link hot backup is specifically designed so the AP simultaneously maintains active CAPWAP tunnel connections to both the primary AC and the backup AC - this is what distinguishes it from single-link backup, where the AP only connects to the backup after detecting a primary failure.
B is wrong because "FALSE" would imply the AP either connects to only one AC at a time or uses some other mechanism - but the defining characteristic of dual-link hot backup is the concurrent, pre-established connection to both ACs, enabling near-instant failover without reconnection delay.
Memory tip: Think of "dual-link" literally - two links, maintained simultaneously. If only one link existed at a time, it wouldn't be "hot" backup (ready instantly), it would be "cold" backup (must reconnect on failure). The word "dual" in the feature name is your clue that both CAPWAP tunnels are always up.
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