ISTQB Certified Tester Foundation Level (CTFL 2018) — Question 11

Which of the following BEST describes a methodical approach to the Error Guessing test technique?

Answer options

• A. A tester dynamically designs and executes tests based on their knowledge, exploration of the test item and the results of previous tests.
• B. An experienced tester makes a list of potential defects and failures, and designs and runs tests to generate these failures should the defects be present in the code.
• C. A tester designs, implements and executes tests to cover test conditions found in checklists that are based on what is important for the user.
• D. An inexperienced tester is asked to attempt to guess errors that may have been missed by experienced testers during formal test design.

Correct answer: A

Explanation

The correct answer, A, accurately captures the essence of the Error Guessing technique, which relies on the tester's prior knowledge and experience to identify potential issues dynamically. The other options describe different testing methods: B focuses on predetermined defects, C emphasizes checklist-based testing, and D highlights the role of inexperienced testers, which do not align with the systematic approach of Error Guessing.