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BCS CTFL4 Exam Syllabus Topics:

Topic
Details

Topic 1

Managing the Test Activities: This topic explains how to plan tests in general, monitor and control test activities, and report defects in a clear and understandable way.

Topic 2

Static Testing: The topic covers static testing basics, the feedback and review process.

Topic 3

Fundamentals of Testing: It discusses the basic principles related to testing. The topic evaluates your understandings about the test process.

Topic 4

Test Analysis and Design: It focuses on black-box and the collaboration-based test approach.

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BCS ISTQB Certified Tester Foundation Level CTFL 4.0 Sample Questions (Q141-Q146):

NEW QUESTION # 141
Which of the following statements about branch coverage is true?

A. If full branch coverage has been achieved, then all unconditional branches within the code have surely been exercised
B. Exercising at least one of the decision outcomes for all decisions within the code, ensures achieving full branch coverage
C. The minimum number of test cases needed to achieve full branch coverage, is usually lower than that needed to achieve full statement coverage
D. If full branch coverage has been achieved, then all combinations of conditions in a decision table have surely been exercised

Answer: B

Explanation:
Exercising at least one of the decision outcomes for all decisions within the code, ensures achieving full branch coverage, which is a test coverage criterion that requires that all branches in the control flow of the code are executed at least once by the test cases. A branch is a basic block of code that has a single entry point and a single exit point, and a decision is a point in the code where the control flow can take more than one direction, such as an if-then-else statement, a switch-case statement, a loop statement, etc. The decision outcomes are the possible paths that can be taken from a decision, such as the then branch or the else branch, the case branch or the default branch, the loop body or the loop exit, etc. The other statements are false, because:
* The minimum number of test cases needed to achieve full branch coverage, is usually higher than that needed to achieve full statement coverage, which is a test coverage criterion that requires that all executable statements in the code are executed at least once by the test cases. This is because branch coverage is a stronger criterion than statement coverage, as it implies statement coverage, but not vice versa. For example, a single test case can achieve full statement coverage for an if-then-else statement, but two test cases are needed to achieve full branch coverage, as both the then branch and the else branch need to be exercised.
* If full branch coverage has been achieved, then all unconditional branches within the code have not necessarily been exercised, as unconditional branches are branches that do not depend on any decision, and are always executed, such as a goto statement, a break statement, a return statement, etc.
Unconditional branches are not part of the branch coverage criterion, as they do not represent different paths in the control flow of the code. However, they are part of the statement coverage criterion, as they are executable statements in the code.
* If full branch coverage has been achieved, then all combinations of conditions in a decision table have not necessarily been exercised, as a decision table is a test design technique that represents the logical relationships between multiple conditions and their corresponding actions, in a tabular format. A decision table can have more combinations of conditions than the number of decision outcomes in the code, as each condition can have two or more possible values, such as true or false, yes or no, etc. For example, a decision table with four conditions can have 16 combinations of conditions, but the corresponding code may have only two decision outcomes, such as pass or fail. To exercise all combinations of conditions in a decision table, a stronger test coverage criterion is needed, such as condition combination coverage, which requires that all possible combinations of condition outcomes in the code are executed at least once by the test cases. References: ISTQB Certified Tester Foundation Level (CTFL) v4.0 sources and documents:
* ISTQB Certified Tester Foundation Level Syllabus v4.0, Chapter 2.3.1, Test Coverage Criteria Based on the Structure of the Software
* ISTQB Glossary of Testing Terms v4.0, Branch Coverage, Statement Coverage, Branch, Decision, Decision Outcome, Unconditional Branch, Decision Table, Condition Combination Coverage

NEW QUESTION # 142
You are an experienced tester on a project with incomplete requirements and under pressure to deploy.
What type of testing should you do?

A. Checklist-based testing.
B. Exploratory testing.
C. Decision-based testing.
D. Error guessing.

Answer: B

Explanation:
When working on a project with incomplete requirements and under pressure to deploy, exploratory testing is particularly suitable. This type of testing allows testers to use their expertise and intuition to explore the system's functionality and identify defects without needing detailed specifications. Exploratory testing is flexible and can quickly adapt to changes and gaps in the requirements.

NEW QUESTION # 143
Which of the following statements about error guessing is true?

A. Experienced testers, when applying error guessing technique, can anticipate where errors, defects and failures have occurred and target their tests at those issues
B. Experienced testers, when applying error guessing, rely on the use of a high-level list of what needs to be tested as a guide to find defects
C. Error guessing refers to the ability of a system or component to continue normal operation despite the presence of erroneous inputs
D. Error guessing is a system that adopts artificial intelligence to predict whether software components are likely to contain defects or not

Answer: A

Explanation:
This answer is correct because error guessing is a test design technique where the experience and intuition of the tester are used to anticipate where errors, defects and failures have occurred or are likely to occur, and to design test cases to expose them. Error guessing can be based on factors such as the complexity of the system or component, the known or suspected weaknesses of the system or component, the previous history of defects, or the common types of errors in the domain or technology. Error guessing can be used as a complementary technique to other more systematic or formal techniques, or when there is insufficient information or time to apply them. References: ISTQB Glossary of Testing Terms v4.0, ISTQB Foundation Level Syllabus v4.0, Section 2.3.2.5

NEW QUESTION # 144
In which one of the following test techniques are test cases derived from the analysis of the software architecture?

A. Experience-based test techniques.
B. Checklist-based test techniques.
C. Black-box test techniques.
D. White-box test techniques.

Answer: D

Explanation:
White-box test techniques are test design techniques where the test cases are derived from the internal structure of the software, including its architecture, code, and logical flow. These techniques involve the tester having knowledge of the internal workings of the software to create test cases that ensure all possible paths and conditions are tested. This is in contrast to black-box test techniques, which focus on input-output behavior without considering the internal structure. Reference: ISTQB CTFL Syllabus V4.0, Section 4.3

NEW QUESTION # 145
During which main group of test activity are the following tasks performed?
*Checking test results and logs against specified coverage criteria.
*Assessing the level of component or system quality based on test results and logs.
*Determining whether more tests are needed.
Select the correct answer:

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

Answer: C

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.

NEW QUESTION # 146
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Zach Moss Zach Moss

Biography

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