Mechanisms such as sending active and standby service messages and retransmission can be used to prevent the HSB backup channel between the active and standby boards from being interrupted and…

Question

Options

• ATRUE
• BFALSE

• A
  23% (6)
• B
  77% (20)

Explanation

Option B (FALSE) is correct because while active/standby heartbeat messages and retransmission mechanisms improve resilience against brief packet loss, they cannot prevent a sustained HSB backup channel interruption from ultimately being detected by the system - in fact, these mechanisms exist precisely to sense failures. If the channel is truly interrupted for long enough, retransmission timeouts will expire and the system will register the fault. The claim that such techniques can make an interruption permanently "undetectable" overstates their capability.

Why A is wrong: A assumes these mechanisms guarantee the interruption is completely transparent end-to-end, but no amount of retransmission can mask a persistent physical or logical channel failure indefinitely - the system must eventually detect and respond to it.

Memory tip: Think of HSB heartbeats and retransmission as a watchdog, not a blindfold. They are designed to find failures quickly and trigger switchover - not to hide them. If the question claims a monitoring mechanism makes something "undetectable," that's a red flag the answer is FALSE.

No community discussion yet for this question.