iSQI Updated CTFL_Syll2018 Exam Questions and Answers by kaiden

Defect clustering is the phenomenon that a small number of modules contain most of the defects detected. This principle suggests that testing should focus more on the areas where defects are more likely to occur, rather than spreading the testing effort equally across all modules. Therefore, in the next test cycle, the team should allocate more resources to test the module that had most of the critical bugs.

Exploratory testing is by definition a reactive test approach, because it involves designing and executing tests based on the tester’s knowledge, experience and intuition, and reacting to the actual behavior and feedback of the system under test. Exploratory testing does not follow a predefined test plan or test cases, but rather adapts to the situation and learns from the results.

A test execution tool is a tool that executes tests on a software system and logs the outcomes of each test step. The ability of the tool to run the unit-level tests for the developers is one of the factors that should be considered when purchasing a test execution tool, as it can improve the efficiency and effectiveness of testing at this level. The other options are not relevant to test execution tools, but to other types of tools such as test management tools, test measurement tools, and requirements management tools. References: Section 6.1.1, Section 6.3.2

The percentage of test conditions covered by test cases is a metric from the test design phase, as it measures how well the test cases cover the test basis13. The other metrics are from the test execution phase or the test closure phase.