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CompTIA Security+ study material · question 237 of 611

A two-node cluster is described as highly available, but both nodes attach to one storage array. What is the flaw?

  1. The single point of failure has moved rather than been removed
  2. The nodes must be in different subnets
  3. Shared storage prevents failover
  4. The cluster needs an odd number of nodes
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Answer: A. The single point of failure has moved rather than been removed

Redundancy only helps where the shared dependency is also redundant; the array can still take both nodes down.

Source: NIST SP 800-34 Rev. 1 (NIST) — SP 800-34 Rev. 1 § 3.4 Create Contingency Strategies

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