Which of the following is NOT a common high-availability strategy in FOSSE?

• A. Redundancy
• B. Load Balancing
• C. Clustering
• D. No Monitoring

Answer: (D)

High availability relies on mechanisms that keep critical services running even when parts fail. Redundancy duplicates key components or paths so a failure doesn’t interrupt service. Load balancing distributes work across multiple servers or paths to avoid overloading any single resource and to maintain service if one node goes offline. Clustering brings together several servers to act as a single system with shared state and automatic failover, boosting both availability and capacity. No Monitoring isn’t a strategy for achieving high availability. Without monitoring, you can’t detect failures or trigger automatic recovery, so you lose the ability to respond quickly to problems. Monitoring is essential to support all the other strategies, but by itself it doesn’t provide the failover capability that makes systems highly available.