Which factor is listed as a potential performance bottleneck?

Which factor is listed as a potential performance bottleneck?

• A. Application usage
• B. Network congestion
• C. Lack of memory
• D. Server load

Answer: (C)

Memory availability is a key limiter of performance because RAM determines how much data and code can stay in fast, ready-to-use space. When memory is scarce, the operating system must swap data to disk, which is many times slower than keeping it in RAM. This paging process creates a lot of disk I/O, raises latency for all applications, and can even cause thrashing if memory pressure is severe, where the CPU mostly waits on memory rather than doing work. Since every process and service relies on memory, a shortage directly throttles overall system throughput and responsiveness, making lack of memory a fundamental performance bottleneck. Other factors like heavy application usage, network congestion, or high server load can contribute, but without enough memory the system can’t efficiently handle these demands.

Memory availability is a key limiter of performance because RAM determines how much data and code can stay in fast, ready-to-use space. When memory is scarce, the operating system must swap data to disk, which is many times slower than keeping it in RAM. This paging process creates a lot of disk I/O, raises latency for all applications, and can even cause thrashing if memory pressure is severe, where the CPU mostly waits on memory rather than doing work. Since every process and service relies on memory, a shortage directly throttles overall system throughput and responsiveness, making lack of memory a fundamental performance bottleneck. Other factors like heavy application usage, network congestion, or high server load can contribute, but without enough memory the system can’t efficiently handle these demands.