試験準備には欠かさない！PCET-30-01問題解答でPCET-30-01試験問題集
リアルPython Institute PCET-30-01試験問題 [更新されたのは2026年]
質問 # 44
What is typically verified through dynamic testing of a web application?
- A. Run-time behavior and UI responsiveness
- B. Comment consistency
- C. Dead code
- D. Coding conventions
正解：A
質問 # 45
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. Code walkthrough
- B. Dynamic testing
- C. Static analysis
- D. Mutation testing
- E. Usability testing
正解：A、B、C
質問 # 46
Which of the following best defines regression testing?
- A. Testing user acceptance criteria
- B. Testing to confirm recent changes haven't broken existing features
- C. Testing only UI components
- D. Testing new features in isolation
正解：B
質問 # 47
Which term is used to describe an issue found during the execution of software that causes the system to behave unexpectedly?
- A. Error
- B. Defect
- C. Fault
- D. Failure
正解：D
質問 # 48
Your team is testing a machine learning model deployed as a microservice. Unit tests are written using stubs. Integration tests are performed with fake models. Stress tests check service behavior under data overload.
Which types of testing and doubles are being used here?
- A. Stress testing
- B. Compliance testing
- C. Stub
- D. Unit testing
- E. Fake object
正解：A、C、D
質問 # 49
What is the main purpose of a code walkthrough?
- A. To validate dynamic behavior
- B. To identify defects in source code by informal discussion
- C. To ensure customer acceptance
- D. To enforce authentication protocols
正解：B
質問 # 50
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 # 51
Which are valid types of test coverage metrics?
- A. Variable coverage
- B. Module documentation coverage
- C. Path coverage
- D. Branch coverage
正解：C、D
質問 # 52
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. Mismatch with business rules
- B. Disabled assertions in production
- C. Faulty logic in calculation
- D. Incorrect test data
- E. Insufficient logging
正解：A、C、D
質問 # 53
Which benefit is most directly associated with frequent code refactoring?
- A. Reduced memory usage
- B. Faster runtime
- C. Improved documentation accuracy
- D. Easier debugging and future enhancements
正解：D
質問 # 54
Which level of testing is performed by end-users to validate business requirements before release?
- A. Acceptance testing
- B. Integration testing
- C. Unit testing
- D. System testing
正解：A
質問 # 55
Which of the following activities is considered dynamic testing?
- A. Peer review
- B. Style guide analysis
- C. Walkthrough
- D. Executing test scripts
正解：D
質問 # 56
Which are examples of white-box testing strategies?
- A. Load testing
- B. Statement coverage
- C. Path testing
- D. Mutation testing
正解：B、C
質問 # 57
Which test coverage metric reflects the percentage of code statements executed during tests?
- A. Path coverage
- B. Statement coverage
- C. Branch coverage
- D. Function coverage
正解：B
質問 # 58
Which of the following are key components of a test case?
- A. Test steps
- B. Preconditions
- C. Expected results
- D. Resource constraints
正解：B、C
質問 # 59
Why is software testing essential in modern development practices?
- A. It accelerates product launch without risk
- B. It validates that requirements are implemented correctly
- C. It prevents the need for refactoring
- D. It ensures security and performance compliance
正解：B、D
質問 # 60
Which Python tool allows interactive execution and inspection during program runtime to help debug code?
- A. traceback
- B. re
- C. pdb
- D. assert
正解：C
質問 # 61
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