Why Performance Metrics Are Needed CT-PT Practice Questions (Page 4)

Questions 16–20

1. 16foundation · easy

   Why are performance metrics essential in performance testing?

   • AThey provide objective data to evaluate system behavior against defined goals and support informed decisions.
   • BThey are only useful for reporting to management and have no technical value.
   • CThey guarantee that the system will never fail under any load condition.
   • DThey replace the need for functional testing by verifying all business logic automatically.
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2. 17application · medium

   A company is performance testing a new customer relationship management (CRM) system. The sales team wants to ensure that the system is responsive during end-of-quarter peak usage. The IT team wants to ensure that the system can handle the expected growth in the number of users over the next two years. Which metric is most important for the IT team's capacity planning?

   • AThroughput (transactions per second) at the expected peak load
   • BError rate during the test
   • CAverage response time for all transactions
   • DPeak response time for the most complex sales report
   Reveal Solution Discussion Select an answer first
4. 18foundation · easy

   Which metric category does 'CPU utilization percentage' belong to?

   • AResponse time
   • BResource utilization
   • CThroughput
   • DError rate
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5. 19application · medium

   A performance test for an online booking system shows that throughput (requests per second) is increasing, but the response time is also increasing. What does this pattern suggest?

   • AThe system is still within its linear capacity region and can handle more load.
   • BThe system is operating in a region where additional load causes disproportionately higher response times.
   • CThe test is invalid because throughput and response time should not increase together.
   • DThe system is experiencing a bottleneck that is limiting throughput.
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6. 20expert · hard

   A performance test team is working on a project with a tight deadline. The stakeholders have conflicting priorities: the business wants to ensure a good user experience, while the operations team wants to ensure system stability and capacity for future growth. The test lead must decide which metrics to prioritize. Which approach best balances the conflicting priorities?

   • APrioritize only user experience metrics to meet the business goal.
   • BCollect all possible metrics to avoid missing anything.
   • CPrioritize user experience metrics (e.g., response time percentiles) and include a few key resource metrics (e.g., CPU, memory) to address stability and capacity.
   • DPrioritize only resource metrics to ensure system stability.
   Reveal Solution Discussion Select an answer first