Which benefit of cluster computing refers to the ability of the system to keep…
Which benefit of cluster computing refers to the ability of the system to keep running even if one node fails?
Answer: B. High Availability — ConceptA highly available system is designed to keep a service accessible despite a component failure. In a cluster, redundancy and failover allow another…
- A.
Scalability
- B.
High Availability
- C.
Cost Effectiveness
- D.
Flexibility
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Correct answer: B
Concept
A highly available system is designed to keep a service accessible despite a component failure.
In a cluster, redundancy and failover allow another node to continue the service when one node becomes unavailable.
Application
The stem asks for the benefit that specifically preserves operation after a node failure. That failure-continuity property is high availability.
Contrast
Scalability concerns handling growth by adding capacity; growth is different from continuity after failure.
Cost effectiveness concerns value relative to expenditure; it does not define service continuity.
Flexibility concerns adapting the configuration or workload; it is not the specific failure-continuity property.
Cross-check
If the failed node were replaced through failover and users could still access the service, the defining benefit would be high availability.
Therefore, the required benefit is High Availability.