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NEW QUESTION 13
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
- A. i, ii, v true iii, iv false
- B. ii, in true i, iv, v false
- C. ii, iii, v true i,i v false
- D. i, iv true ii, iii. v false
Answer: D
NEW QUESTION 14
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. 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.
- 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. 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
Answer: D
NEW QUESTION 15
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 An essential operational profile you identified is the quiz participant Your operational profile discovery efforts have yielded a number of profile attributes / 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.
The average quiz event duration when measured from when the first question is presented to the last answer is reviewed is fifteen minutes Over the fifteen minutes, twelve questions are presented to quiz participants.
Which of thefollowingIs a proper load profilefor thequiz participants?
- A. Steady ramp-up of quiz response transactions from one million until the design maximum is reached within the first three questions.The maximum is sustained until question twelve
- B. 240.000,000 question responses per hour
- C. Maximum number of planned concurrent quiz responses will occur at the first question with a steppedramp-down after each question.The size of each step and the final number of nearly simultaneous quiz responses are random values within historical ranges observed over the last three
- D. Stepped ramp-up of quiz response transactions from one million increasing by a one million after each question until the design maximum is reached.The minimum is sustained until question twelve.
Answer: D
NEW QUESTION 16
How Is transaction elapsed time determined?
- A. response time + think time - nest time
- B. response time + think time + nest time
- C. response time - think time
- D. response time + think time
Answer: D
NEW QUESTION 17
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. Use the date-time clock in order to submit question responses on a synchronized schedule with each instance
- D. Randomly select the maximum think time limit used to delay question responses.
Answer: B
NEW QUESTION 18
Which of thefollowing protocols would allow a test script tointeract with a database management system directly?
- A. HTTPS
- B. IMAP
- C. JDBC
- D. SOAP
Answer: D
NEW QUESTION 19
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 technical stakeholders Which of the following sets of plan attributes would you recommend be included in this presentation?
i.Sales has indicated that quiz events for Sponsor A offering $65,000. Sponsor B offering $45,500. Sponsor C offering $25,000 will be taking place during the first week of performance testing.
ii. Simultaneous session tests are focused on the backend. and are not end-to-end. Variability in user behavior, mobile devicesand mobile communications introduces session drop opportunities outside application control.
Using load generators located
in 5 high availability data centers in North America will ensure session drops are most likely caused by application issues, thus allowing us to isolatethe root cause of any concurrency issues that arise iii.Test scripts based on replaying recorded communication will take 30 hours each to write and test due to the extensive parameterization required to respond to quiz questions Development has agreed to share client code that can be scripted to authenticate and respond to quiz questions automatically. The fully programmed script will likely take 18 hours each to write and test Fully programmed scripts will utilize the identical communications stack of the actual client avoiding missed communication nuances.
iv The U S Federal Trade Commission has recently sued SmartyBogusFauxApp and OutSmartMeexample com over promises of prizes andunreliability v The upgrade being tested was paid for by the latest round of venture funding Supporting 5 million users is requirement thatwas a condition of their funding.
- A. ii, iii include i, iv, v exclude
- B. i. ii include iii. iv, v exclude
- C. iii. iv, v include i, ii exclude
- D. ii, v include i, ii, iv exclude
Answer: A
NEW QUESTION 20
Which of the following Is a valid reason for aggregating performance test results?
- A. Technical stakeholders work with detailed technical status indicators when evaluating an application's performance
- B. Business stakeholders work with detailed technical status indicators when evaluating an application's performance
- C. Technical stakeholders work with aggregated data when isolating causes of performance problems
- D. Business stakeholders can evaluate an application's overall performance status.
Answer: B
NEW QUESTION 21
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 thecurrent performance requirement?
- A. endurance test
- B. concurrency test
- C. load test
- D. scalability test
Answer: A
NEW QUESTION 22
Which of the following activities Is a valid performance oriented static testing activity?
- A. Applying use cases and workflows as features are integrated
- B. Testing end-to-end behaviors under various load conditions.
- C. Evaluatingresourceutilization of unit level test objects
- D. Modeling of system resource requirements and/or behavior using spreadsheets or capacity planning tools
Answer: A
NEW QUESTION 23
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
- A. i. ivtrue ii, iii, v false
- B. i,ii, v true iii, iv false
- C. iii, iv, v true i, ii false
- D. iii true i, ii, iv, v false
Answer: B
NEW QUESTION 24
Which of the following performance tests should we use to determine if an application meets performance expectations under typical realistic loads?
- A. load test
- B. scalability test
- C. spike test
- D. stress test
Answer: D
NEW QUESTION 25
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 storesserving 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.
The average quiz event duration when measured from when the first question is presented to the last answer is reviewed is fifteen minutes. Over the fifteen minutes, twelve questions are presented to quiz participants. After making the following assumptions:
1. Questions must be responded to within a four second window;
2. Question responses will be sent evenly across this window of time (resulting in an average responder time of two seconds);
3. The designed maximum number of concurrent users will attempt the first question;
4. There will be no functional issues when handling the load.
5. The average time from response reception to database commitment is 1000 milliseconds under maximum concurrent usage.
What is the approximate maximum average systemthroughput if that assumptions hold?
- A. 1 million transactions/second
- B. 1.667 million transactions/second
- C. 1 million transactions/millisecond
- D. 200.000 transactions/second
Answer: A
NEW QUESTION 26
Which of the following lists of attributes characterize load generation using crowds?
- A. end-to-end test, repeatable small number of testers
- B. uses API to produce load, repeatable. small number of testers
- C. uses API to produce load, not repeatable. large number of testers
- D. end-to-end test, not repeatable. large number of testers
Answer: B
NEW QUESTION 27
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
- A. i, iii true ii, iv, v false
- B. iv, v true i, ii, iii false
- C. ii. iii true i. iv, v false
- D. ii, v true i, iii, iv false
Answer: D
NEW QUESTION 28
What is the order of architectures that introduce the least to most performance instability?
- A. B,C,A
- B. C,A,B
- C. A,B.C
- D. Multi-tier System
- E. Single Computer
- F. C,B,A
- G. Mobile
Answer: D
NEW QUESTION 29
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