CTFL_Syll2018 Dumps with Practice Exam Questions Answers

Explanation of Correct Answer: A benefit of running tests with a test automation tool is that the time spent on repetitive tasks is reduced, as the tool can execute tests faster and more reliably than humans. Therefore, option D is correct. Option A is incorrect, as test coverage is not increased by using a test automation tool, but by designing more effective test cases. Option B is incorrect, as the number of found bugs is not reduced by using a test automation tool, but by improving the quality of the software under test. Option C is incorrect, as the total cost of the test project does not always decrease by using a test automation tool, as there are costs associated with developing and maintaining the automated tests.

References: Certified Tester Foundation Level Syllabus, Section 6.1

2-point boundary value analysis is a technique that tests the boundary values of valid and invalid partitions with two values each: one at the boundary and one just outside the boundary. For example, if the valid range is 1 to 10, the 2-point boundary values are 1, 2, 9, 10 for the valid partition, and 0, 11 for the invalid partitions. The advantage of this technique is that it reduces the number of test cases compared to 3-point boundary value analysis, which tests one value inside the boundary as well. However, it may miss some defects that occur only with the values inside the boundary.

In this question, the valid partitions are the ranges of spending that correspond to different discounts, and the invalid partitions are the ranges of spending that are below or above the valid partitions. The boundaries are the values of spending that trigger a change in the discount rate. The 2-point boundary values for each partition are:

• Invalid partition below £500: £0, £499
• Valid partition for 5% discount: £500, £501
• Valid partition for 10% discount: £1000, £1001
• Valid partition for 15% discount: £2000, £2001
• Valid partition for 20% discount: £4000, £4001
• Invalid partition above £4000: £4001, £4002

The test cases TC1 and TC2 already cover two of the boundary values: £500 and £2000. Therefore, to achieve 100% 2-point boundary value analysis, we need to write seven more test cases to cover the remaining boundary values: £0, £499, £501, £1000, £1001, £4000, and £4002. Note that £4001 is a boundary value for both the valid and invalid partitions, so we only need to test it once.

References: ISTQB Certified Tester Foundation Level Syllabus v4.0, Chapter 4.2.2, p. 35-36 1; ISTQB Glossary v4.0, p. 16 2; Software Testing - Boundary Value Analysis 2

The software not being able to meet the desired response time is an example of a failure. A failure is an event in which a component or system does not perform a required function within specified limits. A failure is observable by end users or testers as a deviation from expected results. defines a failure as follows:

Failure: Deviation of the component or system from its expected delivery, service or result.

B, C, and D are incorrect answers. The software not being able to meet the desired response time is not an example of a defect (B), an error ©, or not a defect (D). A defect is a flaw in a component or system that can cause it to fail to perform its required function. An error is a human action that produces an incorrect result. Not a defect is a term used to describe an incident report that is rejected or closed as invalid or out of scope. defines these terms as follows:

Defect: A flaw in a component or system that can cause the component or system to fail to perform its required function.

Error: A human action that produces an incorrect result.

Not a defect: An incident report status indicating that there is no defect in relation to this incident report.

Test Cases 1, 2 and 3 are all valid, because they cover all the possible combinations of conditions and actions in the decision table. Test Case 1 covers the case where the employee is not a car or motorcycle driver, which leads to the action of not allowing the expense claim. Test Case 2 covers the case where the employee drives a diesel car with an engine size greater than 1600cc, which leads to the action of accepting the expense claim at band C. Test Case 3 covers the case where the employee rides a motorcycle, which leads to the action of accepting the expense claim at band A12.

The overall quality of the software can be increased by finding and fixing defects before releasing the software to the customers or users. A test case passes means that no defect was found in the tested functionality, which indicates a high quality. A test case fails, defect gets logged which subsequently gets fixed means that a defect was found and corrected, which improves the quality. Some tests are deferred because test environment is not available means that some functionality was not tested, which may leave some defects undetected, which reduces the quality. A bug is found but there is no corresponding test case means that a defect was found by chance or by other means than planned testing, which does not increase the quality of the testing process or the test coverage.