ISTQB CTFL v4.0 Practice Test Questions and Exam Dumps Part8 Q141-160

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Question 141

Which activity is performed to identify conditions that should be tested from the test basis?

  1. Test analysis
  2. Test completion
  3. Test reporting
  4. Test archiving

Correct Answer: 1

Explanation:

Test analysis examines the test basis to identify test conditions and other relevant information needed for testing. The test basis can include requirements, user stories, business rules, designs, or other sources of expected behavior. During analysis, testers determine what needs to be tested and can identify risks, dependencies, and relevant coverage considerations. Test design follows by determining how to test the identified conditions. Test completion and reporting occur at later stages, while archiving is generally associated with closing testing activities. Clear test analysis helps ensure that important aspects of the product are identified before detailed test cases are created.

Question 142

Which activity transforms identified test conditions into test cases and test procedures?

  1. Test monitoring
  2. Test design
  3. Test reporting
  4. Test completion

Correct Answer: 2

Explanation:

Test design develops detailed test cases and other testware based on the test conditions identified during test analysis. It determines suitable inputs, expected results, preconditions, actions, and other information needed to evaluate the software. The selected test techniques influence how tests are designed. Test monitoring instead focuses on tracking testing progress, while test reporting communicates testing information to stakeholders. Test completion deals with closing activities. Separating analysis from design helps testers first determine what should be tested and then establish an effective way to test those conditions.

Question 143

Which test activity involves creating or acquiring the items needed to execute tests?

  1. Test implementation
  2. Test monitoring
  3. Test reporting
  4. Test planning

Correct Answer: 1

Explanation:

Test implementation involves preparing the testware and other items needed to execute tests. This can include organizing test cases, creating test procedures, preparing test data, setting up test environments, and ensuring that required resources are available. The exact activities depend on the testing context and may involve automation or manual preparation. Test planning establishes the overall direction and organization of testing, while monitoring tracks progress and reporting communicates results. Effective implementation ensures that designed tests are actually ready for execution and can be performed under suitable conditions.

Question 144

Which test activity compares actual results with expected results?

  1. Test planning
  2. Test analysis
  3. Test execution
  4. Test estimation

Correct Answer: 3

Explanation:

Test execution involves running tests and evaluating the resulting behavior against expected results. During execution, testers may record actual outcomes, determine whether tests pass or fail, and collect evidence such as logs or screenshots. Unexpected behavior may lead to the creation of defect reports or additional investigation. Test planning determines how testing will be organized, while test analysis identifies test conditions and test design defines detailed tests. Execution therefore provides direct evidence about the behavior of the software under the conditions represented by the selected tests.

Question 145

Which factor should influence the selection of a test technique?

  1. Test basis
  2. Office schedule
  3. Personal preference only
  4. Meeting location

Correct Answer: 1

Explanation:

The test basis is an important factor when selecting a suitable test technique because the technique should be appropriate for the information available and the behavior being evaluated. For example, decision tables can be useful for complex business rules, while state transition testing suits systems whose behavior depends on states and transitions. Other selection factors can include risks, objectives, system characteristics, available documentation, team skills, and regulatory needs. Test techniques should therefore be selected deliberately rather than relying only on personal preference. Using suitable techniques helps improve the effectiveness and relevance of test design.

Question 146

Which black-box technique is especially useful for values located near input limits?

  1. Error guessing
  2. Boundary value analysis
  3. Branch testing
  4. Statement testing

Correct Answer: 2

Explanation:

Boundary value analysis focuses on values at and around the boundaries of equivalence partitions. Defects frequently occur near limits because developers may use incorrect comparison operators, misunderstand inclusive or exclusive boundaries, or mishandle extreme values. Boundary value analysis therefore selects representative values around relevant limits to increase the chance of detecting such defects. It is a black-box technique because the test design is based on externally observable conditions and the test basis rather than internal code structure. Statement and branch testing are white-box techniques, while error guessing relies primarily on tester experience.

Question 147

Which test technique is particularly suitable for testing business rules with multiple condition combinations?

  1. Decision table testing
  2. Statement testing
  3. Branch testing
  4. Random testing

Correct Answer: 1

Explanation:

Decision table testing is designed for situations where different combinations of conditions lead to different actions or outcomes. A decision table organizes conditions and corresponding actions in a structured form, allowing testers to derive tests from relevant combinations. This is useful for business rules involving discounts, permissions, eligibility, calculations, or other conditional behavior. The technique can expose missing combinations or incorrect actions that might be overlooked when conditions are tested separately. Statement and branch testing focus on code structure, while random testing does not provide the same systematic representation of business-rule combinations.

Question 148

Which technique models system behavior using states and transitions between them?

  1. Boundary analysis
  2. State transition testing
  3. Equivalence partitioning
  4. Checklist testing

Correct Answer: 2

Explanation:

State transition testing represents a system through states, events, transitions, and resulting actions or outputs. It is useful when system behavior depends on its current state. Examples can include user account statuses, order workflows, authentication processes, or device operating modes. Tests can verify valid transitions as well as behavior when invalid or unexpected events occur. This technique helps identify defects involving incorrect state changes or missing transitions. Boundary analysis focuses on input limits, equivalence partitioning groups similar values, and checklist testing uses predefined considerations rather than a formal state model.

Question 149

Which technique can derive tests from user goals and interactions with a system?

  1. Use case testing
  2. Branch testing
  3. Statement testing
  4. Static analysis

Correct Answer: 1

Explanation:

Use case testing derives tests from scenarios describing how users or other actors interact with a system to achieve particular goals. It can cover normal flows, alternative flows, and sometimes exceptional conditions. This makes the technique useful for validating end-to-end behavior from a user’s perspective. Use cases can also help identify important interactions between actors and system functions. Branch and statement testing use internal code structure, while static analysis examines work products without executing the software. Use case testing therefore provides a behavior-oriented perspective that complements structural and other black-box techniques.

Question 150

Which testing approach allows test ideas to evolve based on information discovered during execution?

  1. Exploratory testing
  2. Fixed-script testing
  3. Static review
  4. Configuration control

Correct Answer: 1

Explanation:

Exploratory testing allows learning, test design, and execution to occur together. As testers discover new information, they can modify their test ideas and investigate areas that appear interesting or risky. This flexibility can be valuable when requirements are incomplete, changing, or when unexpected behavior needs deeper investigation. Exploratory testing does not mean that planning is absent or that results cannot be documented. Testers can use charters, notes, observations, and other supporting information. The key characteristic is that information gained during testing influences subsequent testing activities rather than following only a predetermined sequence.

Question 151

Which experience-based technique uses a prepared list of areas to consider during testing?

  1. Checklist-based testing
  2. Branch coverage
  3. State transition testing
  4. Decision table testing

Correct Answer: 1

Explanation:

Checklist-based testing uses a prepared list of items that guides the tester through relevant checks. The checklist can be developed from organizational experience, standards, previous defects, expert knowledge, or common quality concerns. It helps testers maintain consistency and reduces the chance of overlooking frequently important areas. Checklists should be reviewed and updated when new risks or defect patterns become known. Unlike branch coverage, the technique does not depend on internal code structure. It also differs from decision tables and state models because the checklist itself provides the guidance for what should be considered during testing.

Question 152

Which structural testing measure considers whether decision outcomes have been exercised?

  1. Statement coverage
  2. Branch coverage
  3. Requirement coverage
  4. Risk coverage

Correct Answer: 2

Explanation:

Branch coverage measures the proportion of branches or decision outcomes that have been exercised by the tests. For a decision with different possible outcomes, tests should exercise the relevant branches to achieve the intended coverage. Branch coverage is a white-box technique because it requires knowledge of the internal control flow. Statement coverage measures executed statements but does not necessarily ensure that every decision outcome has occurred. Coverage measures provide useful information about which structural elements have been exercised, although achieving high coverage does not guarantee that all important defects or requirements have been tested.

Question 153

Which testing concept determines whether tests address identified risks adequately?

  1. Risk-based coverage
  2. Office availability
  3. Team seating
  4. Meeting frequency

Correct Answer: 1

Explanation:

Risk-based coverage considers whether identified risks have received appropriate testing attention. Testing can be prioritized or expanded around areas where failures could have significant consequences or where the likelihood of problems is considered high. The exact interpretation of adequate coverage depends on the risk assessment, test objectives, and project context. Risk-based coverage should not be confused with simple counting of executed tests. A large number of tests may still leave important risks insufficiently examined. Using risk information helps testers concentrate effort on areas where additional evidence can provide meaningful value.

Question 154

Which factor can make a test technique more effective for a particular product?

  1. Alignment with test basis
  2. Random selection only
  3. Unrelated documentation
  4. Fixed technique preference

Correct Answer: 1

Explanation:

A test technique is more likely to be effective when it aligns with the available test basis and the characteristics of the product. For example, equivalence partitioning is useful when inputs can be divided into meaningful groups, while decision table testing is appropriate when combinations of conditions determine outcomes. Testers should also consider risk, objectives, complexity, team knowledge, and available resources. No single technique is suitable for every situation. Selecting techniques based on the context helps produce tests that are relevant and can expose defects associated with the particular behavior being investigated.

Question 155

Which factor can limit the effectiveness of a test technique even when it is correctly applied?

  1. Incomplete test basis
  2. Clear requirements
  3. Suitable test data
  4. Relevant test objectives

Correct Answer: 1

Explanation:

An incomplete test basis can limit the effectiveness of test design because testers may lack important information about expected behavior, rules, constraints, or risks. Even a well-applied technique cannot reliably derive tests for information that is missing from the available basis. In such cases, testers may need clarification, additional sources of information, exploratory investigation, or experience-based techniques. Clear requirements and relevant test objectives generally provide stronger foundations for test design. This illustrates why the quality and completeness of the information used for testing can significantly influence the resulting test coverage and effectiveness.

Question 156

Which technique can help identify defects caused by invalid input categories?

  1. Equivalence partitioning
  2. Branch coverage
  3. Statement coverage
  4. Static analysis

Correct Answer: 1

Explanation:

Equivalence partitioning can identify defects associated with different categories of input, including invalid partitions. Testers divide the input domain into groups that are expected to be processed similarly and select representative values from each group. Invalid partitions are particularly useful for checking how the software handles values that should be rejected or treated differently. Structural coverage techniques focus on internal implementation, while static analysis examines artifacts without executing the software. Equivalence partitioning therefore provides an efficient way to represent meaningful input categories without testing every possible value individually.

Question 157

Which technique can reveal incorrect behavior at the edge of an allowed range?

  1. Boundary value analysis
  2. Use case testing
  3. Checklist testing
  4. Error guessing

Correct Answer: 1

Explanation:

Boundary value analysis specifically targets values at and around the edges of equivalence partitions. Errors frequently occur at these points because implementations may mishandle minimum or maximum values, use incorrect comparison operators, or misunderstand whether a boundary is included. Tests can therefore be designed around values just below, at, and just above relevant limits. The exact values selected depend on the technique variant and test basis. Use case testing focuses on user scenarios, checklist testing uses predefined considerations, and error guessing relies on experience. Boundary analysis provides a systematic approach to testing limits.

Question 158

Which test technique is most useful when a system response depends on previous events?

  1. State transition testing
  2. Equivalence partitioning
  3. Boundary value analysis
  4. Statement testing

Correct Answer: 1

Explanation:

State transition testing is particularly useful when the system’s current state is influenced by previous events and determines how the next event should be handled. For example, a transaction may behave differently depending on whether an account is active, locked, suspended, or closed. By modeling states and transitions, testers can derive tests for valid sequences and invalid transitions. Equivalence partitioning and boundary analysis focus primarily on input values, while statement testing focuses on executed code. State-based behavior requires considering event order and current status, making state transition testing appropriate.

Question 159

Which technique can be useful when testers have strong knowledge of common historical defects?

  1. Error guessing
  2. Decision table testing
  3. Branch testing
  4. Boundary analysis

Correct Answer: 1

Explanation:

Error guessing makes use of tester experience, knowledge of common mistakes, previous defect patterns, and understanding of the product to design tests likely to expose defects. Historical information can be particularly valuable because recurring defect patterns may reveal areas that deserve additional attention. Error guessing is not a substitute for systematic techniques, but it can complement them by targeting problems that may not be obvious from formal specifications alone. Its effectiveness depends heavily on the tester’s knowledge and experience, so different testers may identify different potential error conditions.

Question 160

Why should test techniques be selected according to the testing context?

  1. Every product has identical risks
  2. Context affects useful test coverage
  3. One technique finds every defect
  4. Test design never depends on requirements

Correct Answer: 2

Explanation:

Testing context influences which techniques are most useful because products differ in requirements, risks, architecture, business rules, user behavior, and technical characteristics. A technique that works well for one type of system may provide limited value for another. For example, state transition testing is particularly useful for state-dependent behavior, while boundary value analysis is valuable for input limits. Testers may combine multiple techniques to address different risks and objectives. Selecting techniques according to context helps ensure that test design is relevant to the actual product rather than applying a fixed method without considering its suitability.