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SK0-005 troubleshooting Practice Question

A company uses a two-node failover cluster for a critical database application. The cluster consists of Node A and Node B, with shared storage connected via SAS. During a routine check, the administrator discovers that Node A has failed and the cluster resources did not fail over to Node B. The cluster service is running on Node B, but the database resource remains offline. Node B can successfully ping Node A's management IP address but not the dedicated cluster heartbeat IP. The shared storage appears in the operating system on Node B, but attempts to bring the disks online fail. The administrator must restore database service as quickly as possible. Which of the following actions should the administrator take FIRST?

Answer choices

Why each option matters

Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.

Correct answer & explanation

Check and repair connectivity to the shared storage from Node B

The immediate problem is that the database resource cannot start because the shared storage cannot be brought online. This indicates a storage connectivity issue (e.g., SAS cable, HBA, or multipath problem) that must be resolved before any cluster actions can succeed. Rebooting Node A (A) might restore the node but takes time and may not fix the storage access for Node B. Running the cluster validation wizard (B) is a diagnostic step, not a repair action, and would delay service restoration. Forcing quorum on Node B (C) allows cluster operations but does not address the underlying storage problem; the disk would still fail to come online.

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

  • Check and repair connectivity to the shared storage from Node B

    Why this is correct

    Because the database depends on the shared storage, the first priority is ensuring Node B can access it; once storage is online, the database can be brought online.

  • Run the cluster validation wizard

    Why it's wrong here

    Validation wizard identifies configuration issues but is not a first step for emergency service restoration.

  • Force a quorum on Node B using the /forcequorum switch

    Why it's wrong here

    Forcing quorum may allow the cluster to start but does not resolve the underlying storage connectivity problem.

  • Reboot Node A

    Why it's wrong here

    Rebooting the failed node is time-consuming and does not guarantee storage connectivity from Node B.

Visual reference

Client Recursive Resolver Root DNS (13 root servers) TLD DNS (.com, .org, …) Authoritative example.com query IP addr answer

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Last reviewed: Jul 26, 2026

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