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PCET-30-01試験問題でリアルに更新された問題PDF
質問 # 24
In what situations are assertions most effective?
- A. Postcondition checks
- B. Validating user input
- C. Internal function validation
- D. Error logging
正解：A、C
質問 # 25
Which level of testing is performed by end-users to validate business requirements before release?
- A. Unit testing
- B. Integration testing
- C. Acceptance testing
- D. System testing
正解：C
質問 # 26
Which of the following best defines regression testing?
- A. Testing to confirm recent changes haven't broken existing features
- B. Testing user acceptance criteria
- C. Testing only UI components
- D. Testing new features in isolation
正解：A
質問 # 27
Which benefit is most directly associated with frequent code refactoring?
- A. Reduced memory usage
- B. Improved documentation accuracy
- C. Faster runtime
- D. Easier debugging and future enhancements
正解：D
質問 # 28
Which of the following are valid purposes for using test doubles?
- A. Generating test reports
- B. Improving UI rendering speed
- C. Isolating code under test
- D. Replacing external dependencies
正解：C、D
質問 # 29
Which test double type is specifically used to verify how a system interacts with its dependencies?
- A. Dummy
- B. Spy
- C. Stub
- D. Fake
正解：B
質問 # 30
Which testing technique relies on the tester's domain knowledge and intuition to find defects?
- A. Exploratory testing
- B. Unit testing
- C. Regression testing
- D. Scripted testing
正解：A
質問 # 31
Which test coverage metric reflects the percentage of code statements executed during tests?
- A. Path coverage
- B. Statement coverage
- C. Function coverage
- D. Branch coverage
正解：B
質問 # 32
At which stage of the Software Development Lifecycle (SDLC) does testing first become relevant in modern development methodologies?
- A. Coding
- B. Testing
- C. Design
- D. Requirements
正解：D
質問 # 33
Which activities fall under static testing?
- A. Code inspection
- B. Test script running
- C. Code execution
- D. Peer review
正解：A、D
質問 # 34
Which of the following can be verified during system testing?
- A. Usability
- B. Functional requirements
- C. Database schema
- D. Compiler optimization
正解：A、B
質問 # 35
Which of the following are advantages of black-box testing?
- A. Easy to test all paths
- B. High code coverage
- C. Can validate business requirements
- D. No need for code knowledge
正解：C、D
質問 # 36
Your QA team reviews a Python application. You conduct a peer review and use a linter to enforce style compliance. Later, test cases are executed, and certain modules are observed to crash under specific inputs.
Which practices have been applied in this workflow?
- A. Mutation testing
- B. Dynamic testing
- C. Static analysis
- D. Code walkthrough
- E. Usability testing
正解：B、C、D
質問 # 37
Why is software testing essential in modern development practices?
- A. It ensures security and performance compliance
- B. It validates that requirements are implemented correctly
- C. It accelerates product launch without risk
- D. It prevents the need for refactoring
正解：A、B
質問 # 38
What are benefits of following the test pyramid strategy?
- A. Lower maintenance cost
- B. Reduced code coverage
- C. Early defect detection
- D. Slower testing cycles
正解：A、C
質問 # 39
A Python script is crashing randomly. The team uses the logging module with custom formats and severity levels. They identify repeated IndexError incidents logged at the ERROR level.
Which strategies are most likely helping them trace the issue?
- A. Assertion tracking
- B. Error trace capturing
- C. Custom log format with timestamps
- D. Severity-based filtering
- E. Log file rotation
正解：B、C、D
質問 # 40
Which development model explicitly integrates testing in every phase of development?
- A. Agile-Wave
- B. Spiral
- C. Waterfall
- D. V-Model
正解：D
質問 # 41
A testing team inserts assertions in multiple functions to verify that values never drop below zero. They find that certain values do, and the program halts.
What could be the reasons for these assertion failures?
- A. Disabled assertions in production
- B. Incorrect test data
- C. Faulty logic in calculation
- D. Insufficient logging
- E. Mismatch with business rules
正解：B、C、E
質問 # 42
Which of the following testing types are considered dynamic testing?
- A. Performance testing
- B. Static code review
- C. Unit testing
- D. Code walkthrough
正解：A、C
質問 # 43
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