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CTFL-PT iSQI ISTQB Certified Tester Foundation Level-Performance Testing Free Practice Exam Questions (2025 Updated)

Prepare effectively for your iSQI CTFL-PT ISTQB Certified Tester Foundation Level-Performance Testing certification with our extensive collection of free, high-quality practice questions. Each question is designed to mirror the actual exam format and objectives, complete with comprehensive answers and detailed explanations. Our materials are regularly updated for 2025, ensuring you have the most current resources to build confidence and succeed on your first attempt.

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Total 40 questions

Which of the following performance tests could be best considered to be the opposite to the endurance test when comparing the duration of thetests?

A.

load test

B.

scalability test

C.

spike test

D.

concurrency test

What is the order of architectures that introduce the least to most performance instability?

A.

Mobile

B.

Multi-tier System

C.

Single Computer

D.

A,B.C

E.

B,C,A

F.

C,A,B

G.

C,B,A

Which of the following lists of attributes characterize load generation using crowds?

A.

uses API to produce load, repeatable. small number of testers

B.

end-to-end test, not repeatable. large number of testers

C.

end-to-end test, repeatable small number of testers

D.

uses API to produce load, not repeatable. large number of testers

Which performance testing operational activity pattern assists In identifying system functionality that may require correction or optimization?

A.

Batch requests are collections of activities a SUT performs from inititaion through termination of one or more processes commonly measured for their elapsed time.

B.

Concurrencies are collections of activities a SUT performs from inititaion through termination of one or more processes commonly measured for their elapsed time

C.

Stakeholder requests are collections of activities a SUT performs from inititaion through termination of one or more processes commonly measured for their elapsed time.

D.

Transactions are collections of activities a SUT performs from inititaion through termination of one or more processes commonly measured for their elapsed time.

Which measurements are associated with the environments listed below?

1. Batch completion time

2. Transaction throughput

3. Data restoration duration

4.. Normal use case flow duration

A.

Technical Environment

B.

Business Environment

C Operational Environment

C.

1B. 2B. 3C and 4B

D.

1B,2A,3B and 4A

E.

1A, 2A, 3B and 4A

F.

1A, 2B, 3C and 4B

What is normally performed within the principal performance testing activity called Test Analysis and Design?

i.Determine scope of performance testing

ii.Establish action plans should performance issues arise

iii.in Create the test environment

iv.Identify risks to the performance tests

v. Determine load levels, tiring parameters, and transactions to be tested

A.

v true i, ii, m iv false

B.

ii. v true i, iii,vfalse

C.

i, iv true ii, iii, v false

D.

ii, iii, v true i, iv false

Which Is a valid reason for why performance testing load would be applied to the SUT in a ramp-up pattern during a performance test?

A.

Frequent sudden significant increases of toad allows the SUT performance to stabilize after each |ump in load thus exhibiting consistent behavior that results in measurements that are more reliable

B.

Gradually increasing the load ensures the SUT remains in a transient performance condition as it responds to the new increase in load thus exhibiting realistic behavior that improves the realism of the performance test

C.

Gradually increasing the load allows the SUT performance to stablize after each progressive increment of load thus exhibiting consistent behavior that results in measurements that are more reliable

D.

Frequent sudden significant increases of load ensures the SUT remains in a transient performance condition as it responds to each new large increase in load thus exhibiting consistent behavior that results in measurements that are more reliable.

You have been asked to test the performance of a software and system update to a North American mobile trivia quiz game application.The quiz app is available on major app stores serving English-speaking users.The number of concurrent users plannedfor is 5 million Winning quiz participants are promiseda share of an allocated cash prize Once participants start playing, their quiz sessions must not be lost especially if all previous questions were answered correctly. The application owner wants to ensure that 99% of quiz sessions are maintained (up to 4 95 million sessions) until the last answer has been successfully recorded

The performance test team is assembling criteria for tool selection.They have identified the following criteria

• Must be able to reliably generate 5 million concurrent virtual quiz participants from multiple data centers with centralized control

• Must be compatible with REST based web services and have tight integration with RESTful APIs' OData and OpenAPI.

• Must be able to support nested transaction timers, provide centralized performance data collection and reporting, and integrate with platform monitoring agents used by the Operations team.

Which of the following criterion would best complete the provided set of criteria?

A.

Must protect undesirable performance results from being viewed from unauthorized users

B.

Must provide shellchecking thatchecks spelling within test script comments

C.

Must be supported with documentation, training materials, books from known publishers, and an IDE that behaves similarly to popular in-house IDEs.

D.

Must have technical and software maintenance support for product versions two major revisions behind current revision

You have been asked to test the performance of a software and system update to a North American mobile trivia quiz game application.The quiz app is available on major app stores serving English-speaking users.The number of concurrent users planned for is 5 million Winning quiz participants are promiseda share of an allocated cash prize Once participants start playing, their quiz sessions must not be lost especially if all previous questions were answered correctly. The application owner wants to ensure that 99% of quiz sessions are maintained (up to 4.95 million sessions) until the last answer has been successfully recorded

In order to avoid cooperation among quiz participants, the answers to the multiple choice questions are listed randomly Confidence in the game's fairness requires that a registered user originate from only one quiz client device Every user must respond over the same short window of time in order to avoid external assistance and learning the official answer before responding.Only participants who respond correctly may answer the next question Any activity that appears to violate expected behavior of a rule-following participant will cause the client session to be rejected.

You are developing test script code that handles quiz question responses. To do this you need to ensure that the script emulates the production quiz app client's logic in terms of rule following and client-backend interface specification.

Based on the question description provided, which is one test script behavior you would implement in order to ensure the test script successfully delivers the operational and load profile of a quiz participant?

A.

Recognize whether the previous question response was correct

B.

Set the device identifier as a constant to ensure all virtual user instances use the set value

C.

Randomly select the maximum think time limit used to delay question responses.

D.

Use the date-time clock in order to submit question responses on a synchronized schedule with each instance

You have been asked to test the performance of a software and system update to a North American mobile trivia quiz game application The quiz app is available on major app stores serving English-speaking users.The number of concurrent users planned for is 5 million Winning quiz participants are promised a share of an allocated cash prize Once participants start playing, their quiz sessions must not be lost especially if all previous questions were answered correctly. The application owner wants to ensure that 99% of quiz sessions are maintained (up to 4.95 million sessions) until the last answer has been successfully recorded.

You performed 100 test runs that provided 5 million virtual concurrent users.You have measurements of participant concurrency at the last question for each test run In your analysis, you order all the concurrency test results by measured concurrency value from best to worst.You determine 85%. 90%. 95% and 100% values by selecting the 85th. 90th. 95th and 100th (last and worst) measured values by counting list positions starting from the best value going towards the worst until you reach the desired list position (ex. 85). Keep in mind, the results in lower list positions are as good or better than the results chosen for reporting.

After analyzing the results of the performance tests, you present the following results

85% 4.92 million valid concurrent users

90% 4.90 million valid concurrent users

95%: 4.0 millionvalid concurrent users

100%. 3.8 million valid concurrent users

Based on these results, what should you report to thestakeholders?

A.

The performance tests clearly have failed to produce a realistic and compatible load.The results should confirm the test oracle in that the 99% of five million participants concurrency objective has been achieved.If the performance test plan had worked correctly, the reported values should have been 85% 4.95, 90% 4.95, 95% 4 95 and 100% 4.95 million valid concurrent users.

B.

These results clearly show that the system update successfully supports 99% of five million participants

C.

Four samples from the first fifteen ordered test results are presented. The system update performed much worse than what is presented here. The system update has failed to meet the 99% of five million participants concurrency objective.

D.

If we pick 85 out of 100 test runs as the minimum level of reliability, thesystem update does not reliabilitymeet the 99% of five million participants concurrency target,However not all results are as bad as these

Which of the following performance tests should we use to determine if an application meets performance expectations under typical realistic loads?

A.

spike test

B.

stress test

C.

scalability test

D.

load test

How does a performance test script determine the duration of a request?

A.

Starting a counter when the result is received and stopping the counter when the request is made

B.

Entering an interrupt service routine when the request is made and returning when the result is received.

C.

Forking a child of itself and then blocking when the request is made and resuming operations when the result is received

D.

Starting a timer when the request is made and stopping the timer when a result for the request is received.

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Total 40 questions
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