How does a cluster typically appear to the end user?
How does a cluster typically appear to the end user?
Answer: B. As a single powerful computer — ConceptA computer cluster is a group of networked computers that coordinate their work and are managed as a unified computing resource. This abstraction hides…
- A.
As multiple separate, disconnected computers
- B.
As a single powerful computer
- C.
As a mobile device
- D.
As an offline storage unit
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Correct answer: B
Concept
A computer cluster is a group of networked computers that coordinate their work and are managed as a unified computing resource.
This abstraction hides most node-level details and exposes a single system image or service to the user.
Application
Here, the separate nodes cooperate and pool processing capacity. Among the offered descriptions, the user therefore experiences the cluster as a single powerful computer.
Contrast
Multiple separate, disconnected computers describes independent machines without a coordinated user-facing service.
A mobile device describes a form factor, not a coordinated group of computers.
An offline storage unit describes storage that is not providing an active distributed computing service.
Cross-check
If the user had to manage every node separately, the system would not provide the single-system abstraction associated with cluster computing. Thus the matching description is a single powerful computer.