Principal Performance Testing Activities CT-PT Practice Questions (Page 5)

Questions 21–25

1. 21expert · hard

   After executing a performance test for a web application, the analysis team has the following results: average response time for the search transaction is 1.5 seconds (target < 2s), but the 95th percentile is 4.8 seconds. The CPU utilization on the application server is 90% during the peak load. The team needs to report to stakeholders. Which conclusion is most appropriate?

   • AThe test is inconclusive because the team did not collect enough data on network latency.
   • BThe system passes the test because the average response time is within the target and CPU utilization is acceptable.
   • CThe system fails the performance objectives because the 95th percentile exceeds the target, and high CPU utilization suggests a bottleneck.
   • DThe system meets the performance objectives because the average response time is below the target.
   Reveal Solution Discussion Select an answer first
2. 22application · medium

   A performance test identified that the application's response time degrades significantly after 30 minutes of sustained load, likely due to a memory leak. The development team applied a fix and deployed it. The performance test team needs to validate the fix. Which of the following is the most appropriate test to run?

   • AA stress test with a higher load to see if the system can handle more.
   • BA soak test with the same duration and load as the original test.
   • CA smoke test to verify the application starts correctly.
   • DA spike test to see how the system handles sudden increases in load.
   Reveal Solution Discussion Select an answer first
4. 23application · medium

   A performance test team is executing a soak test for a messaging application. The test plan specifies a duration of 24 hours with a constant load of 1,000 users. After 12 hours, the team observes that memory usage on the application server is steadily increasing. According to the test plan, the success criteria include no memory leaks. What should the team do?

   • AReduce the load to 500 users to see if memory usage stabilizes.
   • BContinue the test and record the memory usage trend for analysis.
   • CExtend the test duration to 48 hours to gather more data.
   • DStop the test immediately and report a memory leak.
   Reveal Solution Discussion Select an answer first
5. 24foundation · easy

   What is the primary purpose of defining the scope in a performance test plan?

   • ATo schedule the test execution timeline
   • BTo identify which system components and transactions will be tested
   • CTo determine the exact number of virtual users to simulate
   • DTo select the performance testing tool
   Reveal Solution Discussion Select an answer first
6. 25foundation · easy

   Which of the following is a typical activity in the analysis of performance test results?

   • AWriting the test plan
   • BCreating the test data
   • CSetting up the test environment
   • DComparing response times to the success criteria
   Reveal Solution Discussion Select an answer first