Categories of Performance Risks for Different Architectures CT-PT Practice Questions (Page 1)

Questions 1–5

1. 1application · medium

   A software company is designing a new system using a service-oriented architecture (SOA). The system will have multiple services that communicate asynchronously via a message queue. The team is concerned about the performance of the entire system under peak load. Which performance risk is most important to test for in this architecture?

   • AMessage queue backlog and processing delays
   • BDatabase connection pool exhaustion in a single service
   • CNetwork latency between the user and the service gateway
   • DSynchronous call latency between services
   Reveal Solution Discussion Select an answer first
2. 2foundation · easy

   For a microservices architecture, which performance testing area is most critical to verify that the system can handle increased load by adding more instances?

   • AEndurance testing
   • BLoad testing
   • CScalability testing
   • DStress testing
   Reveal Solution Discussion Select an answer first
4. 3expert · hard

   A company has a monolithic application that is experiencing performance degradation over time. The team suspects a memory leak. Which performance testing approach is most appropriate to confirm this?

   • AEndurance testing to monitor memory usage over an extended period
   • BSpike testing to see how the application handles sudden increases
   • CStress testing to find the breaking point
   • DLoad testing to see how the application handles peak load
   Reveal Solution Discussion Select an answer first
5. 4application · medium

   A retail company is migrating its monolithic order-processing application to a microservices architecture. Each service communicates synchronously over HTTP. During a pilot load test, end-to-end response times increase dramatically as load rises, even though individual service CPU and memory utilization remain below 50%. Which performance risk is most likely causing this behavior?

   • ADatabase connection pool exhaustion in the monolithic legacy system
   • BMemory leak in one of the microservices causing gradual degradation
   • CNetwork latency introduced by the synchronous HTTP calls between services
   • DInsufficient CPU capacity in the container orchestration layer
   Reveal Solution Discussion Select an answer first
6. 5expert · hard

   A company is choosing between a monolithic and a microservices architecture for a new application. The application has a predictable load pattern with occasional spikes. The team values simplicity and low operational overhead. Which architecture is more likely to meet these needs with fewer performance risks?

   • ABoth have equal performance risks
   • BMicroservices, because it offers independent scaling
   • CNeither is suitable for predictable load
   • DMonolithic, because it has fewer moving parts and simpler scaling
   Reveal Solution Discussion Select an answer first