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Professional Scrum Developer 1 (PSD I) Questions and Answers

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Questions # 1:

Choose two benefits of Continuous Integration. (choose the best two answers)

Options:

It eliminates bugs completely.

It leads to higher transparency and rapid feedback for the team.

The build is executed once every night and at least once each weekend.

It can increase collaboration within the Developers.

Answer

B, D

Explanation

Detailed Explanation: Continuous Integration fosters transparency by identifying integration issues early and providing rapid feedback. It also enhances collaboration by encouraging frequent communication and integration.

Questions # 2:

When using Scrum, can a Scrum Team use Continuous Delivery? (choose the best answer)

Options:

No, because the increment has to be approved at the Sprint Review before it can be released, and a 2-week Sprint would not be considered continuous.

No, because stakeholders may have already seen the new features and the Sprint Review will be meaningless.

No, because before releasing an Increment it first has to fulfill the Definition of Done.

No, because the Product Owner may not be available each time a PBI is done, and the Product Owner has to decide if it should be released.

Yes, there is nothing in Scrum that conflicts with Continuous Delivery.

Answer

Explanation

Detailed Explanation: Scrum is compatible with Continuous Delivery as long as each Increment meets the Definition of Done. Continuous Delivery aligns with Agile principles, allowing frequent releases.

Questions # 3:

The increment must be released at the end of the sprint

Options:

True

False

Answer

Explanation

It should be a working increment, but it's not mandatory to release it.

Questions # 4:

Who is responsible for the sizing / estimate of the product backlog?

Options:

Scrum team

The product owner

Developers

The scrum master lets them know whether they need to be preset

Answer

Explanation

The scrum guide says: "The Developers who will be doing the work are responsible for the sizing. The Product Owner may influence the Developers by helping them understand and select trade-offs."

Questions # 5:

Which of the following are required by Scrum? (choose all that apply)

Options:

Release burn-up.

Burn-down chart.

Unit tests.

Critical path analysis.

Refactoring.

Build automation.

None of the above.

Answer

Explanation

Detailed Explanation: Scrum does not prescribe specific tools or techniques like burn-down charts or unit tests. These are optional practices that teams may adopt to meet their goals effectively.

Questions # 6:

What would a Developer with special quality assurance skills not do? (choose the best answer)

Options:

Delay test activities until a feature has been coded.

Define acceptance criteria for features.

Identify tools and techniques to be used in testing the product.

Create a plan for testing the application.

Answer

Explanation

Detailed Explanation: In Scrum, testing is an ongoing activity, integrated throughout the development process. Delaying tests contradicts Agile and Scrum principles, which advocate for continuous testing and feedback loops.

Questions # 7:

Cyclomatic complexity is a metric for:

Options:

Measuring branching structures and nesting levels in code

Assessing if code is written in as few lines as possible

Determining the number of unit tests required to ensure correctness

Demonstrating code is well structured and cleanly implemented

Answer

Explanation

Cyclomatic complexity is a number expressing the number of different paths that can be taken throughout the code. Higher means complex code.

Questions # 8:

What do scrum artifacts represent?

Options:

Work that needs to be done

Flow and feedback

Work or value

Visual representation of the progress

Answer

Explanation

The scrum artifacts are: product backlog, sprint backlog and the increment. They represent work or value.

Questions # 9:

In software development DRY refers to:

Options:

Code with low cyclomatic complexity

Code with minimal duplication

Code that has not been peer reviewed (yet)

Code that has been peer reviewed

Answer

Explanation

DRY, don't repeat yourself

Questions # 10:

During the sprint the developers realize that they have selected too many product backlog items. How should they go from there?

Options:

Inform the product owner and the stakeholders during the sprint review

As soon as they realize they should work with the product owner to remove some work while not endangering the sprint goal

Outsource the work to another team

Use a definition of done with lower standards to be able to finish all the work they committed to

Answer

Explanation

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.

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