ISTQB ISTQB-CTFL Online Practice Questions and Exam Preparation

ISTQB ISTQB-CTFL Online Questions & Answers

• Question 331:

  You are testing the latest version of an air-traffic control system prior to production deployment using exploratory testing. After following an unusual sequence of input steps, the system crashes. After the crash, you document a defect report with the following information:

  Title: System crashes unexpectedly during input. Brief summary: System crashes when an unusual sequence of inputs is used. Version: V1.001 Test: Exploratory testing prior to production deployment Priority: Urgent Risk: High

  References: Screenshot of crashed application

  What critical Information Is missing from this report?

  A. Conclusions, recommendations, and approvals.
  B. Change history.
  C. Description of the defect to enable reproduction.
  D. Status of defect
  C. Description of the defect to enable reproduction.

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  Explanation

  The critical information missing from the defect report is a detailed description of the defect to enable reproduction. A clear and concise description of the steps taken to reproduce the defect is essential for developers to understand the context and to be able to replicate the issue in their environment. Without this information, it can be challenging to diagnose and fix the defect. The ISTQB CTFL syllabus emphasizes the importance of providing all necessary details in a defect report to facilitate effective communication and resolution.

  References: ISTQB CTFL Syllabus, Section 5.5, "Defect Management."

• Question 332:

  Which of the following BEST describes a test summary report for executive-level employees

  A. The report is detailed and includes a status summary of defects by priority or budget
  B. The report is detailed and includes specific information on defects and trends
  C. The report is high-level and includes a status summary of defects by priority or budget
  D. The report is high-level and includes specific information on defects and trends
  C. The report is high-level and includes a status summary of defects by priority or budget

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  Explanation

  For executive-level employees, a test summary report should be concise and focus on high-level information. It typically includes a summary of defects categorized by priority or budget. Executives are generally interested in the overall status

  and the impact on critical business objectives rather than detailed technical information. The report should provide an overview of the most important aspects of testing, such as key issues, test progress, and any risks or concerns that could

  affect project outcomes.

  References:

  ISTQB Certified Tester Foundation Level Syllabus v4.0, Section 5.3.1.

• Question 333:

  Manager responsibilities in formal review includes ad except one of the following:

  A. Planning the review
  B. Determines if the review objectives have been met
  C. Decide on the execution of reviews
  D. Allocate time for review
  B. Determines if the review objectives have been met

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  Explanation

  A formal review is a type of review that follows a defined process with formal entry and exit criteria and roles and responsibilities for participants. A formal review can have various roles involved, such as manager, moderator, author, reviewer

  and scribe. The manager responsibilities in formal review include all except one of the following:

  Planning the review (correct responsibility)

  Determines if the review objectives have been met (incorrect responsibility)

  Decide on the execution of reviews (correct responsibility)

  Allocate time for review (correct responsibility) The responsibility of determining if the review objectives have been met belongs to the moderator role, not to the manager role.

  Verified

  References:

  [A Study Guide to the ISTQB Foundation Level 2018 Syllabus - Springer], Chapter 3, page 28-29.

• Question 334:

  Which of the following applications will be the MOST suitable for testing by Use Cases

  A. Accuracy and usability of a new Navigation system compared with previous system
  B. A billing system used to calculate monthly charge based or large number of subscribers parameters
  C. The ability of an Anti virus package to detect and quarantine a new threat
  D. Suitability and performance of a Multi media (audio video based) system to a new operating system
  A. Accuracy and usability of a new Navigation system compared with previous system

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  Explanation

  A new navigation system compared with a previous system is the most suitable application for testing by use cases, because it involves a high level of interaction between the user and the system, and the expected behavior and outcomes of the system are based on the user's needs and goals. Use cases can help to specify the functional requirements of the new navigation system, such as the ability to enter a destination, select a route, follow the directions, receive alerts, etc. Use cases can also help to compare the accuracy and usability of the new system with the previous system, by defining the success and failure scenarios, the preconditions and postconditions, and the alternative flows of each use case. Use cases can also help to design and execute test cases that cover the main and exceptional paths of each use case, and to verify the satisfaction of the user' s expectations.

  The other options are not the most suitable applications for testing by use cases, because they do not involve a high level of interaction between the user and the system, or the expected behavior and outcomes of the system are not based on the user's needs and goals. A billing system used to calculate monthly charge based on a large number of subscriber parameters is more suitable for testing by data-driven testing, which is a technique for testing the functionality and performance of a system or component by using a large set of input and output data. The ability of an antivirus package to detect and quarantine a new threat is more suitable for testing by exploratory testing, which is a technique for testing the functionality and security of a system or component by using an informal and flexible approach, based on the tester's experience and intuition. The suitability and performance of a multimedia (audio video based) system to a new operating system is more suitable for testing by compatibility testing, which is a technique for testing the functionality and performance of a system or component by using different hardware, software, or network environments.

  References: CTFL 4.0 Syllabus, Section 3.1.1, page 28-29; Section 4.1.1, page 44-45; Section 4.2.1, page 47-48.

• Question 335:

  Which of the following s the most correct statement about state testing techniques?

  A. Static techniques can be used before all code is ready for execution
  B. Static techniques find more detects then dynamic techniques.
  C. Static techniques can be used by inexperienced users.
  D. Static techniques are always cheaper than dynamic techniques.
  A. Static techniques can be used before all code is ready for execution

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  Explanation

  State testing techniques are a type of dynamic testing techniques that are based on the behavior of the system under test for different input conditions and events. Dynamic testing techniques require the system to be executed with test cases, whereas static testing techniques do not. Static testing techniques can be applied before the code is ready for execution, such as reviews, inspections, walkthroughs, and static analysis. Static testing techniques can help find defects early in the development process, improve the quality of the code, and reduce the cost and effort of dynamic testing.

  References: ISTQB Certified Tester Foundation Level (CTFL) v4.0 Syllabus, Chapter 4, Section 4.2.1, Page 281; ISTQB Glossary of Testing Terms v4.0, Page 292

• Question 336:

  You need to test the login page of a web site. The page contains fields for user name and password. Which test design techniques are most appropriate for this case?

  A. Decision table testing, state transition testing.
  B. Equivalence partitioning, Boundary value analysis.
  C. Exploratory testing, statement coverage.
  D. Decision coverage, fault attack.
  B. Equivalence partitioning, Boundary value analysis.

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  Explanation

  Equivalence partitioning and boundary value analysis are test design techniques that are most appropriate for testing the login page of a web site. The page contains fields for user name and password, which are input values that can be divided into partitions of equivalent data. Equivalence partitioning is a technique that divides the input data and output results of a software component into partitions of equivalent data. Each partition should contain data that is treated in the same way by the component. Equivalence partitioning can be used to reduce the number of test cases by selecting one representative value from each partition. Boundary value analysis is a technique that tests boundary values between partitions of equivalent data. Boundary values are values at the edge of an equivalence partition or at the smallest incremental distance on either side of an edge. Boundary value analysis can be used to detect defects caused by incorrect handling of boundary conditions. For example, for testing the user name field, we can identify two equivalence partitions: valid user name (existing and correct) and invalid user name (non-existing or incorrect). The boundary values for these partitions are the minimum and maximum length of user name allowed by the system.

  Decision table testing and state transition testing are not suitable for testing the login page of a web site, as they are more applicable for testing components that have multiple inputs and outputs that depend on logical combinations of conditions or events. Decision table testing is a technique that shows combinations of inputs and/or stimuli (causes) with their associated outputs and/or actions (effects). State transition testing is a technique that models how a system transitions from one state to another depending on events or conditions.

  Exploratory testing and statement coverage are not suitable for testing the login page of a web site, as they are more applicable for testing components that require learning, creativity and intuition or structural analysis. Exploratory testing is an approach to testing that emphasizes learning, test design and test execution at the same time. Exploratory testing relies on the tester's skills, creativity and intuition to explore the software under test and discover defects. Statement coverage is a type of structural testing that measures how many statements in a program have been executed by a test suite. Statement coverage can be used to assess the adequacy or completeness of a test suite.

  Decision coverage and fault attack are not suitable for testing the login page of a web site, as they are more applicable for testing components that have complex logic or potential errors. Decision coverage is a type of structural testing that measures how many decision outcomes in a program have been executed by a test suite. Decision coverage can be used to assess the adequacy or completeness of a test suite. Fault attack is a type of functional testing that deliberately introduces faults into a system in order to provoke failures or errors. Verified

  References: [A Study Guide to the ISTQB Foundation Level 2018 Syllabus - Springer], Chapter 4, page 34-46; Chapter 5, page 47-48.

• Question 337:

  During which main group of test activity are the following tasks performed?

  1.Checking test results and logs against specified coverage criteria.

  2.Assessing the level of component or system quality based on test results and logs.

  3.Determining whether more tests are needed.

  Select the correct answer:

  A. Test planning.
  B. Test analysis.
  C. Test design.
  D. Test monitoring and control.
  D. Test monitoring and control.

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  Explanation

  The activities of checking test results and logs against specified coverage criteria, assessing the level of component or system quality based on test results and logs, and determining whether more tests are needed fall under the category of test monitoring and control. This phase involves ongoing assessment and adjustment of the test activities to ensure they meet the test objectives and quality goals.

• Question 338:

  Which of the following statements about statement coverage is TRUE?

  A. Achieving 90% statement coverage ensures that 90% branch coverage is achieved.
  B. Achieving 100% statement coverage ensures that no variable within the code has been used without being initialised.
  C. Achieving 100% statement coverage ensures that 100% branch coverage is achieved
  D. Achieving 80% statement coverage ensures that 80% of all executable statements within the code have been exercised.
  D. Achieving 80% statement coverage ensures that 80% of all executable statements within the code have been exercised.

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  Explanation

  Statement coverage measures the percentage of executable statements that have been exercised by a test suite. Achieving 80% statement coverage means that 80% of the executable code lines have been tested. This metric helps in understanding how much of the code has been covered during testing. However, it does not guarantee branch coverage, variable initialization, or detection of all possible defects. The ISTQB CTFL Syllabus v4.0 explains statement coverage as a measure of the extent to which the code has been tested, without implying other types of coverage or testing goals.

• Question 339:

  Why should you choose a test technique?

  A. Because you need to match the way you test to the content of the product under test
  B. Because of the time constraints that usually accompany a test project
  C. Because this way you cover the full scope of the product's functionality
  D. Because choosing a test technique is a common practice in software testing
  A. Because you need to match the way you test to the content of the product under test

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  Explanation

  You should choose a test technique because you need to match the way you test to the content of the product under test. A test technique is a method or process for deriving and selecting test cases based on some criteria or rules. Different

  test techniques are suitable for different types of software products, depending on their characteristics, functionalities, requirements, specifications, risks, etc. Choosing a test technique helps to ensure that the test cases are relevant,

  effective, and efficient for the product under test. The other options are not correct reasons to choose a test technique. Time constraints are not a factor for choosing a test technique, but rather for prioritizing or optimizing testing activities.

  Covering the full scope of the product's functionality is not a guarantee of choosing a test technique, but rather a goal of testing. Choosing a test technique is not a common practice in software testing, but rather a professional skill and

  responsibility.

  Verified

  References: A Study Guide to the ISTQB Foundation Level 2018 Syllabus - Springer, page 31.

• Question 340:

  A test status report SHOULD:

  A. Specify the impediments to carrying out the planned test activities in the reporting period and the corresponding solutions put in place to remove them
  B. Be produced as part of test completion activities and report unmitigated product risks to support the decision whether or not to release the product
  C. Always be based on the same template within an organisation, as its structure and contents should not be affected by the audience to which the report is presented.
  D. Specify the lines of communication between testing, other lifecycle activities, and within the organisation that were chosen at the outset of the test project.
  A. Specify the impediments to carrying out the planned test activities in the reporting period and the corresponding solutions put in place to remove them

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  Explanation

  A test status report is a document that provides a snapshot of the testing activities and their progress during a particular period. It should include information about any impediments encountered during the test execution and the actions taken

  to resolve them, which helps stakeholders understand the challenges and how they were addressed.

  Option B describes an activity related to test completion rather than ongoing status reporting.

  Option C is incorrect because the structure and contents of the report may vary based on the audience's needs.

  Option D, while important, is not the primary purpose of a test status report, which focuses more on the current status and impediments.