ITPEC IP October 2018 Question 45
ITPEC IP October 2018 — Question 45 of 100
Fault tolerance enables system processing to continue when a component fault occurs. Redundancy, failover, and error-handling mechanisms allow the service to remain operational, possibly with reduced capacity, despite the failure.
Answer (c)
Why not others:
- moving to a safe state after failure is fail-safe, not foolproof
- using reliable components to avoid faults is fault avoidance, not fail-safe
- preventing human mistakes by design is foolproof, not fail-soft
Key rule: Fault tolerance continues service after a fault; fail-safe prioritizes safety, fail-soft provides degraded service, and foolproof prevents misuse.
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