iSQI CTFL-PT Exam Questions Instant Access

Question 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.

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?

AThe 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

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

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

DThe 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

Answer : A

Question 2

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

Ai, iii true ii, iv, v false

Bii. iii true i. iv, v false

Cii, v true i, iii, iv false

Div, v true i, ii, iii false

Answer : C

Question 3

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 million valid concurrent users

100%. 3.8 million valid concurrent users

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

AThe 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.

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

CFour 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.

DIf 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

Answer : A

Question 4

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

Av true i, ii, m iv false

Bii. v true i, iii, v false

Ci, iv true ii, iii, v false

Dii, iii, v true i, iv false

Answer : A

Question 5

Which of the following architectures are likely to be found entirely on-premises and less likely to suffer from Internet-based network performance challenges?

i Mobile

ii Multi-tier System in. Single Computer iv. Distributed v. Dynamic

Ai, iv true ii, iii. v false

Bii, in true i, iv, v false

Ci, ii, v true iii, iv false

Dii, iii, v true i, i v false

Answer : A

Question 6

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

Aload test

Bscalability test

Cspike test

Dconcurrency test

Answer : B

Question 7

How does service virtualization contribute to the performance test environment?

AService virtualization allows the load generators to produce more load per virtual instance.

BService virtualization enables the system under test to avoid functional error conditions caused by a necessary service being unavailable at the time of the performance test.

CService virtualization enables load balancers to operate in a distributed environment thereby creating a realistic emulation of a production environment when available system under test equipment is inferior to production.

DService virtualization allows the database to perform as if it were loaded with a data set many times larger than is actually loaded

Answer : B

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