Analysis of Performance Efficiency CTAL-TTA Practice Questions (Page 1)

Questions 1–5

1. 1application · medium

   A development team is about to release a new version of a mobile app. The test analyst wants to ensure that the app's performance is acceptable on a variety of devices. Which approach best combines static and dynamic analysis to achieve this?

   • APerform static code analysis to find potential performance issues and then run dynamic profiling on a few representative devices.
   • BUse a single performance test on the least powerful device.
   • CRun only dynamic load testing on the most powerful device.
   • DConduct a code review focusing only on security issues.
   Reveal Solution Discussion Select an answer first
2. 2foundation · easy

   What is the main objective of load testing?

   • ATo determine the system's behavior under expected normal load conditions
   • BTo verify that the system can run for an extended period without degradation
   • CTo test the system's ability to recover from a crash
   • DTo find the maximum load the system can handle before failure
   Reveal Solution Discussion Select an answer first
4. 3application · medium

   After running a load test on a web application, the test analyst observes that response times increase sharply when the number of concurrent users exceeds 200. The application server's CPU and memory utilization are moderate, but the database server's CPU is at 100%. What is the most likely bottleneck?

   • AApplication server thread pool
   • BMemory leak in the application
   • CNetwork bandwidth
   • DDatabase server CPU
   Reveal Solution Discussion Select an answer first
5. 4foundation · easy

   Which of the following best describes the scope of performance efficiency analysis in testing?

   • AIt covers both static analysis (e.g., code reviews) and dynamic analysis (e.g., profiling and load testing)
   • BIt is limited to the testing phase and does not consider requirements or design
   • CIt is only concerned with the hardware configuration of the production environment
   • DIt focuses exclusively on the speed of the user interface
   Reveal Solution Discussion Select an answer first
6. 5application · medium

   A test analyst is reviewing the results of a performance test for a web service. The test simulated 500 concurrent users for 30 minutes. The average response time was 2 seconds, the 95th percentile response time was 5 seconds, and the throughput was 100 requests per second. Which conclusion is most appropriate?

   • AThe throughput of 100 requests per second is too low for 500 concurrent users.
   • BThe service meets the requirement that 95% of requests complete within 2 seconds.
   • CThe service is performing well because the average response time is 2 seconds.
   • DThe service has a performance issue because the 95th percentile is significantly higher than the average.
   Reveal Solution Discussion Select an answer first