ITPEC IP April 2024 Question 46
ITPEC IP April 2024 — Question 46 of 100
Dual hardware redundancy supports a non-stop system by providing a second component that can continue service if the first fails. Critical servers, power supplies, network paths, controllers, or storage components can be duplicated. With appropriate detection and failover, a fault in one side does not immediately stop the system, increasing availability.
Answer (d)
Why not others:
- (a) componentizing software improves structure and maintainability but does not alone ensure uninterrupted operation
- (b) encryption protects confidentiality rather than service continuity
- (c) lower power consumption improves efficiency but does not provide a substitute when hardware fails
Key rule: High availability removes single points of failure through redundancy, fault detection, and failover; duplication without a working switchover mechanism is insufficient.
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