Which statement describes failover clustering in relation to service availability?

Which statement describes failover clustering in relation to service availability?

• A. Failover clustering provides high availability for services.
• B. Failover clustering increases CPU speed.
• C. Failover clustering creates more storage.
• D. Failover clustering improves network security.

Answer: (A)

Failover clustering is about keeping services reachable even when parts of the system fail. In a cluster, several servers work together so that if one node goes down, another node can take over the running service automatically. This automatic failover minimizes downtime and maintains service availability for users, which is exactly what high availability means in practice. The other ideas—speeding up CPU, creating more storage, or improving network security—aren’t the primary purpose of failover clustering. It’s about resilience and continuity of service, not increasing performance or capacity or tightening security.

Failover clustering is about keeping services reachable even when parts of the system fail. In a cluster, several servers work together so that if one node goes down, another node can take over the running service automatically. This automatic failover minimizes downtime and maintains service availability for users, which is exactly what high availability means in practice.

The other ideas—speeding up CPU, creating more storage, or improving network security—aren’t the primary purpose of failover clustering. It’s about resilience and continuity of service, not increasing performance or capacity or tightening security.