ISTQB ISTQB Certifications ATM Questions & Answers

• Question 41:

  The following chart plots the cumulative number of defects opened against the cumulative number of defects closed during system testing of a software product.

  

  Which of the following statements is true? K2 1 credit

  A. The chart indicates that you have plenty of problems left to find

  B. The chart can be used to reveal test progress problems

  C. The chart seems to indicate that the defect management process is not working well

  D. The chart seems to indicate that the defect management process is working well

  Correct Answer: D

• Question 42:

  Based on the historical data of 5 past and similar projects, you have calculated these average numbers of defects detected in system testinG.

  -

  For each 10000 LOC (lines of code), 200 defects

  -

  For each person-month of development team effort, 49 defects

  You want to use this information to perform estimation for a new project.

  The project manager tells you that he/she has estimated 20000 new LOC for this new project.

  Four developers work for four months on this project before system testing.

  During system testing, 797 defects are discovered.

  Assume that the system test of this new project is using the same amount of work as spent in the past

  projects.

  Based on this information only, which of the following statement is certainly true about this project?

  K3 3 credits

  A. The code for the new project contains a higher defect density than the code of the past projects

  B. The number of defects found during the system test phase on the new project is approximately proportional to the development team effort

  C. 40000 LOC have been delivered to system testing (against the 20000 LOC planned by the project manager)

  D. More LOC than planned have been delivered to system testing with a higher defect density than the past projects

  Correct Answer: B

• Question 43:

  Which of the following statements, about the test reporting activities for a project adopting an iterative lifecycle model with very short iterations (e.g. two weeks iterations), is correct?

  K2 1 credit

  A. Test reporting activities can't be influenced by the use of an iterative lifecycle model with short iterations

  B. Test reporting activities are not important for projects adopting an iterative lifecycle model with short iterations

  C. Test reporting activities are less important for projects adopting an iterative life cycle model with short iterations. They should be performed at the end of the last iteration

  D. Test reporting activities are still important with an iterative lifecycle. The reports can be used to conduct post-iteration review sessions before starting with the next iteration

  Correct Answer: D

• Question 44:

  Assume you have some data related to confirmation testing during system testing of a past project.

  In that project 240 bug reports have been opened once, 80 were opened twice, 10 were opened three

  times and no bug reports have been opened more than three times.

  You estimate that a bug report, which has failed its confirmation test, costs, on average, 3 person-hours.

  Which of the following statements correctly describe the value of these confirmatory testing activities based

  on cost of quality? K3 2 credits

  A. 300 person-hours have been spent on the project during the system testing phase, because of the failed confirmation tests and this cost belongs to the costs of internal failure

  B. 340 person-hours have been spent on the project during the system testing phase, because of the failed confirmation tests and this cost belongs to the costs of external failure

  C. 340 person-hours have been spent on the project during the system testing phase, because of the failed confirmation tests and this cost belongs to the costs of internal failure

  D. 300 person-hours have been spent on the project during the system testing phase, because of the failed confirmation tests and this cost belongs to the costs of detection

  Correct Answer: A

• Question 45:

  You are the Test Manager on a project following an iterative life-cycle model. The project should consist of nine iterations of one month duration each. It is planned to develop the most important features to have a stable core of the application in the first three iterations and to add the additional features in the last six iterations. At the beginning of the first iteration, only a draft version of the requirements specification document for the core features is available. Assume that during each of the first three iterations, the chosen features are fully completed and unit tested.

  Which of the following statements is true in this context?

  K4 3 credits

  A. The system test phase should start when all the requirements are frozen

  B. You should allocate a large effort for system testing during the first three iterations

  C. You should allocate all the effort for the system test phase only in the last iteration

  D. You should apply the same test strategy as used in a sequential life cycle model

  Correct Answer: B

• Question 46:

  You are managing the system testing for a SOA based system. The integrated system consists of several subsystems:

  -

  A SOA middleware

  -

  A CRM (Customer Relationship Management) system

  -

  A BRM (Billing and Revenue Management) system

  -

  A SMS (Subscriber Management System) system and you performed a risk analysis based on these subsystems.

  

  At the end of the scheduled period for test execution you produce a first classical report based on the traditional metrics of testing. Test pass/fail status and bug status (open/resolved) That table provides you a distorted picture of the quality risk, because there is no indication of the risk level of the failed tests, the tests not run, or the open bugs. Thus, you produce the following table to solve this distortion issue:

  In the table above, where you have introduced the concept of risk weighting, the highest risk test or bug report has a score of 1, while the lowest risk test or bug report has a score of 0.04.

  Which of the following subsystems, based on the risk scores of the table, is most risky?

  K4 3 credits

  A. SOA

  B. CRM

  C. BRM

  D. SMS

  Correct Answer: B

• Question 47:

  You are estimating the effort for the integration testing activities of a new project. Consider the following factors, which can affect that estimation:

  I. Availability of re-usable test systems and documentation from previous, similar projects

  II. Unexpected timing of components arrival

  III. Stability of the integration test team (no turnover)

  IV.

  Many and geographically distributed sub-teams Which of the following statements is true? K2 1 credit

  A.

  I. and II. can negatively affect the estimation III. and IV. usually favor the accuracy of the estimation effort

  B.

  II. and III. can negatively affect the estimation

  C.

  and IV. usually favor the accuracy of the estimation effort

  D.

  II. and IV. can negatively affect the estimation

  E.

  and III. usually favor the accuracy of the estimation effort

  F.

  III. and IV. can negatively affect the estimation

  G.

  and II. usually favor the accuracy of the estimation effort

  Correct Answer: C

• Question 48:

  In the next two months some new features will be constantly added to new releases of a project you are working on as Test Manager.

  You have identified as one of the main project risks, that the requirements specification will still be incomplete when your team starts the test design and implementation phase.

  Some requirements will most likely be completed too late to allow a proper test preparation.

  You and your test team have already worked on several similar past projects in the same organization.

  Which one of the following options would you expect to be the most effective at mitigating this risk?

  K4 3 credits

  A. Don't prepare any test and just run the regression test suite to check that the new features don't introduce regression

  B. Make reasonable assumptions about the missing details and design lightweight tests that can be easily updated during test execution

  C. Don't design any test until the test execution starts, then communicate that test execution is blocked due to incomplete requirements

  D. Even if there are only few details missing, escalate the risk to the project manager without preparing any tests

  Correct Answer: B

• Question 49:

  You are working on a project to develop an authentication system for an e-commerce website. This system provides two features: Registration and authentication. Two different development teams develop these two features.

  There is a high likelihood that the delivery of the authentication feature to the test team will be three weeks later. To complete the registration the user must provide the following registration inputs: Name, surname, birth date, fiscal code and he/she can select a username and a password.

  A registered user can be a special user or a normal user. To be identified as a special user, he/she must also provide, during the registration process, a voucher possibly received from the IT department.

  Access is granted only if a user is registered and the password is correct: In all other cases access is denied. If the registered user is a special user and the password is wrong, a special warning is shown on the system console.

  You are currently performing a quality risk analysis using FMEA.

  Based only on the given information, which of the following is NOT a product risk that could be identified during the quality risk analysis?

  K4 3 credits

  A. The late delivery of the authentication feature to the test team causes delays in the start of test execution and this could result in a shorter test period

  B. The authentication system denies access for a special user with a wrong password, but doesn't display a special warning on the system console

  C. The authentication system grants access to a normal user with a wrong password

  D. The authentication system grants access to a special user with a wrong password

  Correct Answer: A

• Question 50:

  Assume you are working on a CAS (Conditional Access System) for Pay-TV that allows the access, selection and transfer of services and media to authorized users. Authorized users can choose their services through different channels: Web Customer Portal, IVR (Interactive Voice Response), Call Centre and SMS. The system uses a Smart Card to receive and decrypt the broadcasted encrypted control words which allow decrypting pay- per-view TV. Every authorized user must have a Smart Card and a Set-Top Box to view the contents.

  The following is an excerpt from the product risk analysis document:

  Both likelihood and impact have been rated on the following scale: (1 ?Very low, 2 ?Low, 3 ?Medium, 4 ? High, 5 ?Very High).

  The required test environment and code have been delivered. All test cases for each identified product risk item have been written and are ready to be executed. The Database used to contain the Smart Cards is empty and so only new Smart Cards can be used during test execution.

  A Smart Card can only be activated if it has been previously pre-activated. This means the post-conditions for the execution of the test cases to test the pre-activation of the Smart Card are the pre-conditions for activation of the Smart Card.

  Which of the following statements represents the most effective contribution of the stakeholders to the completion of the failure mode analysis table?

  

  K4 3 credits

  A. The aircraft pilot and the customer representative should contribute to assess the detection. The chief software engineer, the system architect and the expert tester should contribute to assess the priority.

  B. The aircraft pilot and the customer representative should contribute to assess the priority. The chief software engineer, the system architect and the expert tester should contribute to assess the detection.

  C. The system architect and the chief software engineer should contribute to assess the priority. The expert tester is the only one who should contribute to assess the detection.

  D. The aircraft pilot is the only one qualified to contribute to assess the priority and thus should be assigned this task. The customer representative should contribute to assess the detection.

  Correct Answer: B