ISTQB CTFL-Foundation Exam With Confidence Using Practice Dumps

The highest level of risk is calculated by considering both the likelihood of failure and the impact value. Risk can be quantified as the product of these two factors:

A: 20% * £100,000 = £20,000

B: 10% * £150,000 = £15,000

C: 1% * £500,000 = £5,000

D: 2% * £200,000 = £4,000

Therefore, Option A (20% likelihood of failure and £100,000 impact value) represents the highest risk value. Reference: ISTQB CTFL Syllabus V4.0, Section 5.2.3 .

Testing should be stopped based on risk criteria defined for the system being tested. The ISTQB CTFL syllabus v4.0 outlines that the decision to stop testing is influenced by risk levels, coverage achieved, time and budget constraints, and the criticality of the system under test. Stopping criteria should ensure that the risk of remaining defects is acceptable for the project stakeholders​​.

The failure rate in testing already completed is a useful metric to monitor progress along with test preparation and execution. It provides insight into the effectiveness of the tests and the quality of the product, helping to identify areas that may require additional attention or resources.