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ISTQB Certified Tester - Performance Testing Question and Answers

ISTQB Certified Tester - Performance Testing

Last Update Apr 28, 2025
Total Questions : 40

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Questions 1

Which of the following is usually identified by a performance test?

Options:

A.  

Resource bottlenecks

B.  

Suitability issues

C.  

Learnability concerns

D.  

Failure to meet accessibility requirements

Discussion 0
Questions 2

During which of the principal performance testing activities are the building blocks for larger, more complex tests created?

Options:

A.  

During test completion

B.  

During test planning

C.  

During test design

D.  

During test implementation

Discussion 0
Questions 3

Which of the following is an advantage of using performance monitoring tools?

Options:

A.  

They can prevent malicious behavior.

B.  

They proactively compile metrics from server logs.

C.  

They more easily identify and report multi-threading problems.

D.  

They can proactively detect denial-of-service (DoS) attacks.

Discussion 0
Questions 4

Which of the following could lead to inconsistent performance test results?

Options:

A.  

Concurrent scripts running and attempting to access the same data.

B.  

Sequential scripts running and attempting to access the same data.

C.  

Virtual users running the same script while logged in as the same user.

D.  

Expected results were not verified with senior management.

Discussion 0
Questions 5

Stakeholders were unhappy with previous performance test results, which indicated that the adjustments were not made fast enough and engine stall was probable. The developers have now made changes that they believe will significantly improve the performance of the adjustments.

What should you do to ensure the performance test objectives have been properly defined before you run the next set of performance tests?

Options:

A.  

Understand the delta between the results from previous performance tests and the results from the expected performance improvements.

B.  

Adjust stakeholder expectations to be more aligned with the reality of the previous test results.

C.  

Realign performance test objectives with business stakeholders to meet project milestone dates.

D.  

Realign performance test objectives with all stakeholders to meet time-to-market goals.

Discussion 0
Questions 6

What is typically the result of oversaturation of system resources during performance testing?

Options:

A.  

Response time will gradually improve over a period of time.

B.  

Response time will be slow under significant load levels.

C.  

Error logging will decrease.

D.  

The size of the database will gradually decrease.

Discussion 0
Questions 7

Which of the following is a key reason to include ramp-up and ramp-down periods in a performance test?

Options:

A.  

To ensure virtual users complete their transactions within a defined time window

B.  

To simulate a more realistic user load pattern and avoid sudden system stress

C.  

To provide a buffer for slow-performing transactions to complete

D.  

To guarantee that all virtual users remain active throughout the test duration

Discussion 0
Questions 8

Which of the following performance script types measures network response times?

Options:

A.  

GUI scripts

B.  

API scripts

C.  

HTTP scripts

D.  

Protocol-level scripts

Discussion 0
Questions 9

When following the principal performance testing activities, when are resources allocated?

Options:

A.  

During test planning

B.  

During test execution

C.  

During test evaluation

D.  

During test completion

Discussion 0
Questions 10

At what point during performance testing does monitoring with the load testing tool begin?

Options:

A.  

When testing is concluded.

B.  

Before testing execution.

C.  

Immediately after test execution.

D.  

Simultaneously with test execution.

Discussion 0
Questions 11

Which of the following is a major contributor to unreliable performance projections?

Options:

A.  

Redundancy between the test and production environments

B.  

Disagreement between the technical and business stakeholders during analysis

C.  

Differences in the hardware between the test and production environments

D.  

Business stakeholders setting unrealistic performance goals

Discussion 0
Questions 12

You have run a load test. When examining the metrics, you see that the virtual users experienced many timeouts and excessive wait times. The system throughput metrics exceeded expected results, even during peak times.

Based on your analysis, what conclusion should you draw?

Options:

A.  

Network infrastructure should be investigated.

B.  

Processing speed is too slow.

C.  

Virtual users are exhibiting impatient behavior.

D.  

New test data is needed.

Discussion 0