ISTQB Certified Tester Foundation Level-Performance Testing CTFL-PT Exam Questions

Pdfprep2021-04-16T07:43:09+00:00

ISTQB Certified Tester Foundation Level-Performance Testing CTFL-PT exam is aimed at anyone involved in software testing who wishes to broaden their knowledge of performance testing or anyone who wishes to start a specialist career in performance testing. The new cracked ISTQB CTFL-PT exam questions are the best material for you to study the test.

Study the whole ISTQB certification CTFL-PT exam questions with 39 Q&As, and then you can pass the test easily. Performance testing activities will be organized and performed differently, depending on the type of software development lifecycle in use. ISTQB Certified Tester Foundation Level-Performance Testing CTFL-PT exam free questions are available for you to study below.

Page 1 of 2

1. 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.

Before your team begins testing, the team needs to present the performance test plan to business stakeholders

Which of the following sets of plan attributes would you recommend be part of this presentation?

During the actual quiz, users logon gradually but play simultaneously. The load injection of quiz responses will not ramp up. therefore nearly 5 million quiz responses will need to be generated in a 4 second time frame with no opportunity to reach steady state. Test plans have been discussed with Operations Development and Data Center representatives and we believe the tests will tax the quiz application consistent with actual use. The JMeter monitoring system has been tuned however, with 5 million service requests over 4 seconds there is concern that the services queue measurements may be off by 25%

There is a less then10% chance of missing a scheduled quiz session due to performance test activities, which will likely cost the company $50,000 in lost sponsor revenue and brand damage To avoid this risk, we are scheduling Operations and Development representatives to be available during test execution We will require that the RAID 5+1 LUNs associated with the database server cluster be broken at 22 30 and the RAID 5+1 LUNs restored, ensuring the offline set mirrors back to the RAID 5 set that was under test, at 03:00

Since the client uses an asynchronous REST web services based sessions back to the QUZRAC services cluster, the load profile will consist of virtual users running programmed load scripts based in C# that will randomly select the correct answer following a normal distribution thusmodeling the typical success distribution among users The strict 4 second cap on user responses will translate into think times that are randomly selected between 1/2 second and just under 4 seconds using a uniform distribution

If the quiz applicationdrops more than 1% of quiz sessions, users will likely write bad reviews on app stores and other gaming sites Performance tests will verify that system can support at least 4 95 million users Planned tests, which include the simultaneous sessions test, will cost $350,000 Since only two quizzes are scheduled a day, performance tests on the production system during the "down' times should be representative of what users experience. There is a 10% chance that the production system will not restored in timefor a quiz.

2. Which of the situations test adheres to general performance testing principles?

The performance test report compares results with negotiated stakeholder accepted measures and performance objectives

Performance testers allow the performance test environment to change between test repetitions

The performance test plan shows a test schedule that produces results a week after the project's delivery milestone with a budget 35% less than initially allocated

Performance testers save planning time and money by avoiding stakeholder discussions and applying industry best practices to define performance measures and acceptable results

3. Server virtualization has improved deployment speed and operating-cost efficiency for many IT applications.

Which of the following architectures are very likely to utilize server virtualization that potentially suffers from performance challenges related to common host hardware resources being burdened by virtualized servers unrelated to the application under performance test?

i Multi-tier System

ii. Mobile

iii. in Single Computer

iv. Distributed

v. Cloud-based

i, ii, iii true iv, iv false

i, iv, v true ii, iii false

ii, iv, v true i, iii false

iii, iv, v true i, ii false

4. 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.

A coworker has located various test plan elements under the standard PTP sections in a draft You have been asked to analyze the quality of the draft. The complete PTP draft cannot be provided here A content sampling of the PTP is provided.

Based on the content sample below, what is the quality of the draft document when only considering the alignment of content under standard PTP sections?

0 misalignments, good

1 misalignments, good

2 misalignments good

3 misalignments needs improvement

5. What test script operating conditions are risks to a performance test's validity?

i. Record insertions align with transaction objective

ii. Component failure within the system under test

iii. Load generator produces low load level

iv. Database log remains synchronized with load generators time source

v. Virtual users authenticate with distinct IDs

i, iii true ii, iv, v false

ii. iii true i. iv, v false

ii, v true i, iii, iv false

iv, v true i, ii, iii false

6. Which tool is best suited for determining resource utilization of a system component under test?

load generator

management console

localization test tool

monitoring tool

7. Which tool is ideally the only source of execution burden experienced by the system under test?

load generator

management console

log analysis tool

monitoring tool

8. 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?

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

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

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 aremore reliable

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.

9. You have been asked to test theperformance 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.

An essential operational profile you identified is the quiz participant Your operational profile

discovery efforts have yielded a number of profile attributes A quiz participant will answer twelve questions if they manage to answer the first eleven correctly Every user is made aware of a new question nearly simultaneously. The quiz user has limited time to respond using a mobile application. They are unable to respond to subsequent questions after they incorrectly answer a question. However, the quiz participant continues to see new questions even though they may have responded incorrectly to a previous question. If they manage to answer all twelve questions correctly, the quiz application notifies them that they have tentatively won (subject to formal verification) an equal share of a cash prize of an amount set for the particular quiz event In addition to this individualized interaction, a broadcast video stream is presented in the quiz app providing entertaining commentary, quiz event coordination event status and answer explanations.

Given this information, what is missing to construct the operational profile for the quiz participant?

The network bandwidth requirements of the video stream intermissions between questions is unknown. The network bandwidth requirements of the video stream intermissions between questions is unknown

No survey results from past quiz winners that explore how they won No survey results from past quiz winners that explore how they won.

The quiz response time limit is not specified. The quiz response time limit is not specified

The design maximum number of users within quiz participant user class is unknown. The design maximum number of users within quiz participant user class is unknown

10. 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 belost 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 million valid concurrent users

100%. 3.8 million valid concurrent users

Based on these results, what should you report to the stakeholders?

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 and100% 4.95 million valid concurrent users.

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

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.

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

Page 2 of 2

11. The average time from response reception to database commitment is 1000 milliseconds under maximum concurrent usage.

What is the approximate maximum average system throughput if that assumptions hold?

1.667 million transactions/second

1 million transactions/second

1 million transactions/millisecond

200.000 transactions/second

12. Which section of a performance test script is typically responsible for ensuring the script will have the right values and communication settings during execution?

main section

clean-up section

initialization section

timer section

13. 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

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 toavoid 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?

Recognize whether the previous question response was correct

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

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

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

14. During design discussions the performance test team observed that database stored procedures for several popular use cases may be badly coded .

Which of the following common performance failures would best confirm the team’s confirm was justified?

Slow response under all load levels

Slow response fader moderate-to-heavy load levels

Degraded response over time

Inadequate or graceless error handling under heavy or over-limit load

15. Which of the following performance tests commonly results In understanding an application's ability to support future Increases of users or larger amounts of data without exceeding the current performance requirement?

scalability test

load test

endurance test

concurrency test

ISTQB Certified Tester Foundation Level-Performance Testing CTFL-PT Exam Questions

Author