A performance test engineer is collecting metrics from a legacy mainframe system. The load testing tool cannot directly integrate with the mainframe's monitoring interface. Which approach is most appropriate for collecting resource utilization data?

Estimate resource utilization based on the response times observed in the load testing tool

Use the mainframe's native monitoring tools to collect resource utilization logs and correlate them with the test timeline

Skip resource utilization data because the tool cannot collect it

Run the load test without any load to measure baseline resource utilization

A team is testing a file upload service. The business requirement is that the service must handle a specific number of uploads per hour. Which metric is the primary indicator that this requirement is met?

Average response time for a single upload

Peak memory utilization of the upload service

Error rate of the upload requests

Throughput, measured as completed uploads per hour

What is a key technique to ensure the accuracy of performance measurements collected during a test?

Running the test only once to avoid variability

Collecting measurements only from the client side

Synchronizing the clocks of all load generators and servers

Using a single load generator to avoid network delays

A retail company is performance testing its new e-commerce checkout API. The business goal is to ensure that 95% of checkout requests complete within 2 seconds during peak holiday traffic. The test team has budget for only three primary metrics to monitor during the test. Which set of metrics best aligns with this business goal?

Response time percentiles, throughput, and error rate

Average response time, peak response time, and standard deviation

Throughput, network latency, and bandwidth consumption

CPU utilization, memory utilization, and disk I/O

A performance test engineer is collecting metrics from a distributed system. The application servers and the load generator are in different time zones. The engineer needs to correlate application server logs with the load test results. What is the most reliable way to ensure accurate correlation?

Configure all servers and the load generator to use NTP (Network Time Protocol) to synchronize their clocks to the same time source

Manually add the time zone difference to the application server logs after the test

Use the load generator's local time as the reference and ignore the server logs

Record the time zone of each server and use it to calculate the offset during analysis

Certified Tester Performance Testing

Domain 2Objective 2

Collecting Performance Measurements and Metrics CT-PT Practice Questions (Page 1)

Part of the Performance Measurement Fundamentals domain, which makes up ~28% of our current practice bank. ISTQB does not publish an official question count, but from its 90-minute exam (~35–60 total, ~10–17 in this domain), expect 2–3 from this objective — we provide 27 practice questions to prepare you well beyond it. (estimate)

27questions here

6free pages

6concepts

Questions 1–5

1application · medium
A performance test engineer is collecting metrics from a legacy mainframe system. The load testing tool cannot directly integrate with the mainframe's monitoring interface. Which approach is most appropriate for collecting resource utilization data?
Select an answer first
2application · medium
A team is testing a file upload service. The business requirement is that the service must handle a specific number of uploads per hour. Which metric is the primary indicator that this requirement is met?
Select an answer first
3foundation · easy
What is a key technique to ensure the accuracy of performance measurements collected during a test?
Select an answer first
4application · medium
A retail company is performance testing its new e-commerce checkout API. The business goal is to ensure that 95% of checkout requests complete within 2 seconds during peak holiday traffic. The test team has budget for only three primary metrics to monitor during the test. Which set of metrics best aligns with this business goal?
Select an answer first
5expert · hard
A performance test engineer is collecting metrics from a distributed system. The application servers and the load generator are in different time zones. The engineer needs to correlate application server logs with the load test results. What is the most reliable way to ensure accurate correlation?
Select an answer first

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