A test analyst is documenting the metrics for a performance test plan. The analyst has listed 'response time' as a metric. What is the MOST important additional detail to document to make this metric unambiguous?

The exact definition of the measurement point (e.g., from the user's click to the screen update)

The name of the tool that will be used to capture it

The expected value based on a previous test run

The specific transaction or user action it applies to

A retail bank is launching a new online loan application portal. The business sponsor's primary concern is that customers do not abandon the application process due to slow page loads. The performance test team has budget for only three metrics. Which set of metrics best aligns with the sponsor's stated business goal?

Average response time for the application submission step, error rate, and CPU utilization of the application servers

95th percentile page load time for the application pages, error rate, and transaction completion rate

95th percentile response time for all portal pages, error rate, and throughput (requests per second)

Average page load time, peak memory utilization, and number of concurrent users

A test lead is documenting the rationale for including 'error rate' as a key metric in a performance test plan. Which statement BEST describes the rationale for this metric?

It measures the speed of individual transactions

It measures the number of users the system can support

It indicates the reliability of the system under test, which is a key stakeholder concern for the new payment system

It is a standard metric that is always included in performance tests

In performance testing, what is the defining characteristic of a performance metric?

A tool configuration setting that determines the load generation profile

A quantifiable measure used to evaluate the performance attributes of a system

A qualitative description of system behavior observed during a test

A list of test cases designed to validate functional requirements

Certified Tester Performance Testing

Domain 2Objective 3

Selecting Performance Metrics CT-PT Practice Questions (Page 4)

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 24 practice questions to prepare you well beyond it. (estimate)

24questions here

5free pages

7concepts

Questions 16–20

16application · medium
A test analyst is documenting the metrics for a performance test plan. The analyst has listed 'response time' as a metric. What is the MOST important additional detail to document to make this metric unambiguous?
Select an answer first
17application · medium
A retail bank is launching a new online loan application portal. The business sponsor's primary concern is that customers do not abandon the application process due to slow page loads. The performance test team has budget for only three metrics. Which set of metrics best aligns with the sponsor's stated business goal?
Select an answer first
18application · medium
A test lead is documenting the rationale for including 'error rate' as a key metric in a performance test plan. Which statement BEST describes the rationale for this metric?
Select an answer first
19foundation · easy
In performance testing, what is the defining characteristic of a performance metric?
Select an answer first
20foundation · easy
Which of the following is the primary category that measures how quickly the system responds to a user request?
Select an answer first

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Selecting Performance Metrics CT-PT Practice Questions (Page 4)

Questions 16–20

A test analyst is documenting the metrics for a performance test plan. The analyst has listed 'response time' as a metric. What is the MOST important additional detail to document to make this metric unambiguous?

A test lead is documenting the rationale for including 'error rate' as a key metric in a performance test plan. Which statement BEST describes the rationale for this metric?

In performance testing, what is the defining characteristic of a performance metric?

Which of the following is the primary category that measures how quickly the system responds to a user request?

Keep studying — Performance Measurement Fundamentals