STLC interview questions — Hard
134 hard-level STLC questions from our Manual Testing bank, each with the correct answer and an explanation of why it is correct.
This topic slice is available to practise but is not yet part of our indexed set.
What this covers
STLC appears throughout Manual Testing interviews. At hard level, interviewers are typically checking depth under pressure — edge cases, failure modes, performance characteristics, and the trade-offs you accepted. Work through these, then explain your answer out loud; the second part is what interviews actually test.
7 example questions
1. On a release readiness call: What is the first phase of the Software Testing Life Cycle (STLC)?
- A. Test Closure.
- B. Test Execution.
- C. Environment Setup.
- D. Requirement Analysis.correct
Why: STLC begins with Requirement Analysis where testers study testable requirements.
2. In a CI/CD pipeline review, consider this: Which STLC phase produces the Requirement Traceability Matrix (RTM)?
- A. Defect Retesting.
- B. Requirement Analysis.correct
- C. Test Execution.
- D. Test Closure.
Why: The RTM is created during Requirement Analysis to map requirements to test cases.
3. In a test-strategy meeting, the question comes up: In which STLC phase are test cases actually run against the build?
- A. Test Planning.
- B. Test Design.
- C. Requirement Analysis.
- D. Test Execution.correct
Why: Test cases are run during the Test Execution phase and results are logged.
4. Regarding STLC, which of the following is a false statement?
- A. Entry criteria define conditions that must be met before a phase begins.
- B. STLC phases can never overlap under any circumstances.correct
- C. Test Closure includes reports, metrics, lessons learned, and archiving testware.
- D. Environment setup can proceed in parallel with test case development.
Why: The selected statement is false. The other options are accurate statements about STLC.
5. Which statement about STLC is NOT correct?
- A. The Requirement Traceability Matrix maps requirements to the test cases covering them.
- B. Test Closure includes reports, metrics, lessons learned, and archiving testware.
- C. Test Closure happens before any tests are executed.correct
- D. Exit criteria define conditions to conclude a phase.
Why: The selected statement is false. The other options are accurate statements about STLC.
6. Identify the INCORRECT statement about STLC:
- A. Test Planning produces the test plan covering scope, approach, resources, and schedule.
- B. Entry criteria define conditions that must be met before a phase begins.
- C. Exit criteria must be satisfied before a phase can start.correct
- D. Exit criteria define conditions to conclude a phase.
Why: The selected statement is false. The other options are accurate statements about STLC.
7. Which of the following statements about STLC is FALSE?
- A. Test Planning produces the test plan covering scope, approach, resources, and schedule.
- B. Exit criteria define conditions to conclude a phase.
- C. STLC phases can never overlap under any circumstances.correct
- D. Environment setup can proceed in parallel with test case development.
Why: The selected statement is false. The other options are accurate statements about STLC.