You are responsible for a Microsoft based network. Your servers are all clustered. Which of the following are the likely reasons for the clustering? Each correct answer represents a complete solution.

Question

Options

• AReduce power consumption
• BEase of maintenance
• CFailover
• DLoad balancing

• A
  90% (36)
• C
  5% (2)
• D
  5% (2)

Explanation

Note: The stated correct answer (A, B) appears to be an error in the source material. The actual correct answers are C and D, which is consistent with industry knowledge and standard exam content on this topic.

Server clustering in Microsoft environments (such as Windows Server Failover Clustering) is primarily implemented for failover (C) - if one node crashes, another node automatically takes over its workload with minimal downtime - and load balancing (D), which distributes client requests across multiple nodes to prevent any single server from becoming a bottleneck. These two goals together ensure both high availability and performance under heavy traffic.

Why A and B are wrong: Clustering increases power consumption because multiple servers run simultaneously, making A incorrect. While clustered environments can simplify certain maintenance tasks (like rolling updates), ease of maintenance is a secondary benefit, not a primary design reason - and by itself would never justify the cost and complexity of a cluster.

Memory tip: Think of clustering as solving two "too much" problems - too much downtime (solved by failover) and too much traffic (solved by load balancing). If a reason doesn't address one of those two problems, it's likely a distractor.

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