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H12-821_V1.0 · Question #751

Rapid detection technology can detect communication failures with adjacent devices as early as possible so that the system can take timely measures to ensure uninterrupted business.

The correct answer is A. TRUE. Option A (TRUE) is correct because rapid detection technology - such as BFD (Bidirectional Forwarding Detection) - is specifically designed to identify link or neighbor failures far faster than traditional protocol hello/dead timers, enabling the system to trigger failover or…

IPv4 Routing Technologies

Question

Rapid detection technology can detect communication failures with adjacent devices as early as possible so that the system can take timely measures to ensure uninterrupted business.

Options

  • ATRUE
  • BFALSE

How the community answered

(17 responses)
  • A
    76% (13)
  • B
    24% (4)

Explanation

Option A (TRUE) is correct because rapid detection technology - such as BFD (Bidirectional Forwarding Detection) - is specifically designed to identify link or neighbor failures far faster than traditional protocol hello/dead timers, enabling the system to trigger failover or rerouting within milliseconds rather than seconds.

Option B (FALSE) is wrong because it contradicts a well-established networking principle: rapid detection mechanisms exist precisely to minimize the window between a failure occurring and the network responding, preserving service continuity.

Memory tip: Think of rapid detection as a "heartbeat monitor" - just as a cardiac monitor alerts staff the instant a heartbeat is missed (rather than waiting minutes), rapid detection alerts the network the instant a neighbor goes silent, so business traffic never stalls.

Topics

#BFD#Link failure detection#Fast convergence#Adjacent device detection

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