無料Scrum PSD学習ガイド試験問題と解答
PSD試験問題集、PSD練習テスト問題
質問 73
What is a sprint burn down chart?
- A. Visual representation of the product backlog items left
- B. A chart that shows whether bugs came up
- C. A chart showing progress towards the product goal
- D. Visual representation of work that is still to do and time that is left
正解: D
質問 74
The right time to refactor code using TDD is
- A. When preparing legacy code for unit tests
- B. After the tests passes
- C. When I can see the debt building in the code
- D. After the tests fails
正解: B
解説:
You should refactor as soon as possible, but before the tests passes it cannot be refactored, because then it is not esatablished just yet. So it would still be part of the first version if changes would be made then.
質問 75
What does code coverage show?
- A. The quality of unit tests being written
- B. The ratio of the number of tests to lines of code in the system being tested
- C. Code being exercised by tests
- D. When a feature is done
- E. The absence of defects in code
正解: C
解説:
The ratio answer is wrong, because it doesn't say anything about the number of tests to lines of code, but it does say the percentage of lines of code that is being tested. Hence, the correct answer is code being exercised by tests.
質問 76
What are two responsibilities of testers in the scrum team? (choose two)
- A. All developers are responsible for quality
- B. Tracking quality metrics
- C. Verifying the work of the programmers
- D. Scrum has no tester role
- E. Finding bugs
正解: A,D
解説:
Specific roles don't exist in scrum, developers are creating the value.
質問 77
What event is timeboxed?
- A. All of these
- B. Sprint retrospective
- C. Daily Scrum
- D. Sprint planning
- E. Sprint
- F. Sprint review
正解: A
質問 78
What are some disadvantages of code coverage as a measure for how well a system or product is tested? (three answers)
- A. It could create incentives to write tests that simply increase code coverage, rather than tests that find bugs without increasing code coverage
- B. It is too complicated to explain to management
- C. It does not ensure that the most important or highest risk areas of the code are being exercised by tests
- D. It does not measure usability
- E. It only provides insights to programmers
正解: A,C,D
解説:
Not being able to explain to management should never be the reason to not do it. It doesn't only provide some data to programmers, the problem is that code coverage alone is not meaning a lot.
質問 79
How is the management external to the Scrum team involved in the daily scrum?
- A. The product owner speaks on their behalf
- B. The developers self-manage and they are the only management required at the daily scrum
- C. The scrum master speaks on their behalf
- D. The scrum master lets them know whether they need to be preset
正解: B
解説:
Only the developers need to be present at the daily scrum, since they are self managing, that's all the management necessary.
質問 80
During the sprint the developers realize that they have selected too many product backlog items. How should they go from there?
- A. Use a definition of done with lower standards to be able to finish all the work they committed to
- B. Inform the product owner and the stakeholders during the sprint review
- C. As soon as they realize they should work with the product owner to remove some work while not endangering the sprint goal
- D. Outsource the work to another team
正解: C
解説:
Never should they reduce the DoD. They should be able to do the work their selves and therefore work with the product owner to reduce the scope. Since the product owner is responsible for maximizing value and making priorities, he is the go to person for matteres like this.
質問 81
What is test first development?
- A. Creating tests before satisfying them
- B. The continuous restructuring of software to retain flexibility
- C. Having the tester in the development team write the test plans before coding
- D. Testing existing code before adding more code to it
正解: C
解説:
Test first development is a different way of saying TDD.
質問 82
The product owner determines how many product backlog items the developers select for the sprint in the sprint planning.
- A. False, the project manager does that
- B. True, in line with what was promised to the stakeholders
- C. True, if the developers have enough capacity
- D. True
- E. False, the scrum master does that
- F. False
正解: F
解説:
It is false, the developers select the items, because they will have to commit to it.
質問 83
A scrum master is working with developers that are spread over different locations. They have a variety of meeting rooms and the daily scrum is a logistic struggle every day. What actions should the scrum master take?
- A. Allow the developers to self-manage and decide what to do their selves.
- B. Decide the best solution and arrange a meeting to inform the developers.
- C. Raise it as an impediment and make sure that management solves it.
- D. Create a schedule and alternate who is responsible for the daily scrum logistics
正解: A
解説:
Self management is important. All the other options the scrum master takes a decision by himself, it is better if the solution comes from the development team.
質問 84
Which of the following two best describe a ready product backlog item?
- A. It has been changed from unready to ready status in the tracking tool
- B. It is a complete user story with all the necessary components
- C. It has been fully described in the user requirements analysis
- D. It is well understood by the developers and product owner at the sprint planning
- E. It can most likely be done within one sprint
正解: D,E
解説:
A ready product item needs to be able to be done in a sprint (scrum guide). In order for it to be ready, the product owner and the developers need to understand it well. Tracking tools and requirements analysis and how user stories should be made isn't part of scrum or the best practices for development.
質問 85
What relation does scrum have to development practices?
- A. Scrum has no relationship to development practices
- B. Scrum requires a specific set of development practices
- C. Scrum is complemented by good development practices
- D. Scrum requires all development practices
正解: C
解説:
Scrum requires no development practices, but good development practices do help and make scrum more successful.
質問 86
At the 10th sprint review, the stakeholders are disappointed and angry. They have determined that the product or system being built both will not meet their needs and will cost more than they are willing to spend. What factors may have led to this? (choose three)
- A. The scrum master has not ensured that the project is transparent
- B. The stakeholders haven't been using sprint reviews to inspect and evaluate progress
- C. Changes to the project plan were not adequately documented and shared
- D. The project management office has not been engaged adequately
- E. The product owner has not been keeping the stakeholders aware of the progress of the project
- F. The stakeholders were not allowed to enter the development area
正解: A,B,E
解説:
there is no project plan, the presence of stakeholders in the development area is probably not helping and there is no project management. Transparancy would avoid the surprise for the stakeholders. If the PO didn't frequently update them, this can also lead to surprise and disappointent. If the stakeholders couldn't attend the sprint review they would also not be up to date and missing out on an opportunity to inspect and adapt.
質問 87
When more teams are working on the same product. How should they go about their definition of done?
- A. All development teams must have a DoD that makes their combined work releasable.
- B. Every team uses its own. The differences are discussed in a hardening sprint.
- C. It depends on the product owner
- D. Every team must make their own DoD, a meeting should be organised so that the differences are known.
正解: A
解説:
The product must be releasable and done must mean the same for all additions to the product. So they must have a DoD that can combined. There is no hardening sprint.
質問 88
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最新のPSD実際の無料試験問題は更新された122問があります：https://www.goshiken.com/Scrum/PSD-mondaishu.html
検証済みPSD問題集PDF資料 [2022年更新]：https://drive.google.com/open?id=1R4c0-DTc8FNTCY04BFMkXOx1VKzFfHvx