The Influence of Criticality on the Extent of the Test CT-AUT Practice Questions (Page 5)

Questions 21–23

1. 21application · medium

   A company is developing a lane-keeping assistance system that must comply with ISO 26262. The team needs to decide on the test depth and coverage levels. Which approach is most appropriate for this safety-critical system?

   • AUse statement coverage only, as it is the simplest and fastest.
   • BApply modified condition/decision coverage (MC/DC) as required by the safety standard.
   • CUse the same coverage level as for a non-critical infotainment system.
   • DPerform only black-box testing without any structural coverage.
   Reveal Solution Discussion Select an answer first
2. 22expert · hard

   A test team must test a new electric power steering (EPS) system that is ASIL D and a legacy radio that is not safety-related. The team has a fixed test window. Which testing approach best balances risk and effort?

   • ATest the EPS system with full rigor and test the radio only for basic functionality.
   • BTest the radio first because it is quicker to test.
   • CTest both systems equally to ensure no defects are missed.
   • DSkip testing the radio entirely to focus all effort on the EPS.
   Reveal Solution Discussion Select an answer first
3. 23foundation · easy

   In risk-based test prioritization, what is the primary factor used to decide which test cases should be executed first?

   • AThe chronological order in which the test cases were designed
   • BThe likelihood and impact of failure of the associated system function
   • CThe ease of writing the test case
   • DThe number of test cases already executed for that feature
   Reveal Solution Discussion Select an answer first