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Question 1

Which of the following activities Is a valid performance oriented static testing activity?

AEvaluating resource utilization of unit level test objects

BTesting end-to-end behaviors under various load conditions.

CApplying use cases and workflows as features are integrated

DModeling of system resource requirements and/or behavior using spreadsheets or capacity planning tools

Question 2

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

Question 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

Ai, ii, iii true iv, iv false

Bi, iv, v true ii, iii false

Cii, iv, v true i, iii false

Diii, iv, v true i, ii false

Question 4

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

Question 5

What is normally performed within the principal performance testing activity called Test Planning and Control?

i. Determine scope of performance testing

ii. Organize test cases into performance test procedures

iii. Create the test environment

iv. Identify risks to the performance tests

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

Aiii true i, ii, iv, v false

Bi. iv true ii, iii, v false

Ci, ii, v true iii, iv false

Diii, iv, v true i, ii false

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