Which tool is used to test and estimate the load on a server or service?

• A. Load Balancing
• B. Load Tester
• C. Local
• D. Local backup

Answer: (B)

Testing how much load a server can handle is done with a load tester. A load tester is a tool that simulates user traffic or requests to your service and measures how the system performs as the load increases. It helps you collect metrics like response time, error rate, throughput, and resource usage (CPU, memory, network). By gradually ramping up the load, you can find the capacity limits, identify bottlenecks, and compare different configurations to plan for scaling.

Why the other options don’t fit: load balancing is about distributing incoming requests across servers to improve performance and availability, not about measuring or estimating how much load the system can handle. Local is not a testing tool, and local backup deals with copying data for safety, not evaluating performance.