Free Practice Questions for Microsoft GH-900 Exam

A distributed version control system (DVCS) like Git is best described as a system that ensures each developer has their own local copy of the entire code repository, including the complete project history and metadata . This decentralized approach allows developers to work independently, with full access to the project ' s history and files, and later synchronize their changes with others. Unlike centralized systems, DVCS does not rely on a single central server, which provides greater flexibility and robustness in collaboration.

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GitHub Mobile provides a streamlined experience for managing your GitHub notifications and participating in discussions, but it does not offer full functionality compared to the desktop or web interface.

Managing Notifications:

Option E is correct because GitHub Mobile allows users to manage notifications, keeping them up to date with their repositories, issues, pull requests, and other activities on GitHub.

Incorrect Options:

Option A is incorrect because GitHub Mobile cannot be used as a self-hosted runner.

Option B is incorrect because managing enterprise and organization settings is not supported in GitHub Mobile.

Option C is incorrect because GitHub Mobile does not offer a chat or voice calling feature.

Option D is incorrect because forking and cloning repositories are not actions available in GitHub Mobile.

GitHub ' s community is centered around enabling developers to collaborate and innovate together. The platform provides tools and environments that foster open communication, sharing of ideas, and collective problem-solving.

Facilitating Collaboration and Creativity:

Option C is correct because GitHub is designed to be a collaborative platform where developers can work together on projects, share code, and contribute to open source initiatives, all in an environment that encourages creativity.

Incorrect Options:

Option A is incorrect because GitHub is inclusive of developers of all skill levels, not just experienced ones.

Option B is incorrect because GitHub is not about creating a competitive environment; rather, it focuses on collaboration.

Option D is incorrect because while code quality is important, enforcing strict code quality standards is not the primary goal of the GitHub community.

The qualifier mentions: is used in GitHub ' s search functionality to find issues that mention a certain user. For example, if you want to find all issues where a specific user is mentioned, you would use mentions:username . This helps in tracking where a user has been involved in discussions across issues or pull requests.

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GitHub Actions are automated workflows that can be triggered by various events on GitHub. Some common events that trigger workflows include pushes to a repository, creation of issues, and comments on discussion posts.

Triggering GitHub Actions:

Option D (Pushing to a GitHub repository) is correct because this is one of the most common triggers for CI/CD workflows.

Option F (Creating an Issue) is correct because issues are commonly used as triggers for workflows, such as automatically assigning a label or notifying a team.

Option A (Adding a comment to a discussion post) is correct because actions can be triggered by activity on discussion posts, including comments.

Incorrect Options:

Option B (Creating a new repository) is incorrect because this action typically does not trigger workflows within a specific repository.

Option C (Committing a change to a local git repository) is incorrect because GitHub Actions are triggered by events on the GitHub platform, not by local commits.

Option E (Disabling a GitHub runner) is incorrect because it is related to the environment where actions are executed, not a trigger for workflows.

A GitHub repository serves as a collaborative space where developers can share and manage code files, track changes, and store revision history . It is much more than just a folder or simple tool; it is a comprehensive version control system that allows teams to collaborate effectively on codebases. Repositories enable developers to work together, manage contributions, review code, and maintain a complete history of every change made to the project.

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Two recommended ways to improve the discoverability of a repository on GitHub are:

B. Create a README file describing the repository : A well-written README file provides essential information about the project, such as what it does, how to use it, and how to contribute. This is often the first thing potential users or contributors will see, making it critical for discoverability.

D. Add topics to classify the repository : Adding topics to your repository helps classify it under specific categories, making it easier for others to find it through GitHub’s search and exploration features. Topics act like tags, helping to connect your project with users interested in similar subjects.

Registering a repository with GitHub search and adding labels are not applicable actions for improving discoverability in the broader sense.

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