Analysis and Reporting CT-PT Practice Questions (Page 3)

Questions 11–15

1. 11expert · hard

   A tester is writing a report for a performance test that was conducted on a staging environment that is half the size of production. The test showed that the system meets all targets. The operations team wants to know if the system will meet the targets in production. What is the most appropriate way to address this in the report?

   • AClaim that the system will meet the targets in production because it met them in staging.
   • BState that the results are valid for the staging environment and note that production may behave differently due to the larger scale and different configuration.
   • COmit the staging environment details to avoid confusion.
   • DRecommend that the test be re-run in production to get accurate results.
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2. 12foundation · easy

   When communicating performance test results to a non-technical audience, which approach is most effective?

   • AFocusing on the business impact and using visual aids like charts
   • BProviding a detailed list of all performance counters and their values
   • CUsing technical jargon to ensure precision and avoid ambiguity
   • DAvoiding any mention of risks to prevent unnecessary concern
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4. 13application · medium

   A performance test of a new customer portal shows that the average response time is 1.2 seconds, which meets the stated target. However, the 99th percentile is 8.5 seconds, and the error rate under peak load is 4.5%. The project manager, who is non-technical, is about to sign off on the portal as 'production-ready' based on the average. What is the most effective way for the tester to communicate the risk?

   • APresent a graph of the response-time distribution and explain that 1 in 100 users will experience a wait of over 8 seconds, which may lead to abandoned transactions.
   • BSend the full raw data file to the project manager so they can see the individual response times themselves.
   • CState that the portal fails the performance test because the 99th percentile exceeds the average.
   • DRecommend delaying the launch until the average response time is below 1 second.
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5. 14expert · hard

   A tester is writing a report for a performance test that revealed a critical bottleneck. The development team has already fixed the issue, but the fix has not been re-tested. The project manager wants to include the fix in the report as 'resolved'. What is the most appropriate action for the tester?

   • ARemove the finding from the report because it is no longer relevant.
   • BMark the issue as 'resolved' because the development team has confirmed the fix.
   • CReport the original finding as 'unresolved' and note that a fix has been implemented but not yet verified by re-testing.
   • DSchedule a re-test and write the report after the re-test is complete.
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6. 15application · medium

   During a load test of an e-commerce checkout API, the performance tester observes that the 95th percentile response time jumps from 800 ms to 4.2 seconds exactly when the virtual user count reaches 500. CPU on the application servers is at 40%, memory at 55%, and the database server shows a high number of lock waits. The tester needs to identify the most likely bottleneck before writing the report. What should the tester do next?

   • ACorrelate the response-time spike with database lock-wait metrics and query the database for the specific queries involved.
   • BReview the load generator's think-time settings to ensure they match production user behavior.
   • CIncrease the virtual user load to 1,000 to confirm the bottleneck is consistent and gather more data points.
   • DCheck the application server's network interface for packet drops and retransmissions.
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