ITPEC IP April 2024 Question 16
ITPEC IP April 2024 — Question 16 of 100
Clustering links multiple computers so that they cooperate and appear as one system. Requests can be distributed among cluster nodes to increase processing capacity, and redundant nodes can take over when one node fails. These properties make clustering suitable for web services that require both high throughput and high availability.
Answer (a)
Why not others:
- (b) Spooling temporarily stores jobs in a queue for a slower device, such as a printer
- (c) Buffering temporarily holds data to absorb speed or timing differences between components
- (d) Mirroring maintains an identical copy of data, commonly on another disk, but does not by itself make multiple computers operate as one processing system
Key rule: A cluster combines multiple machines at the system level for scale or availability; spooling and buffering manage data flow, while mirroring duplicates data.
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