Practice Test

True/False: Git is a distributed version control system?

  • True
  • False

Answer: True

Explanation: Git is indeed a distributed version control system that allows multiple developers to work on a project at the same time.

Which of the following allows git users to connect over HTTPS, SSH, or Git protocols?

  • A. AWS CodeCommit
  • B. AWS Lambda
  • C. AWS EC2
  • D. AWS Cloudwatch

Answer: A. AWS CodeCommit

Explanation: AWS CodeCommit is a fully-managed source control service that hosts secure Git-based repositories.

True/False: AWS CodeCommit automatically encrypts files and repositories at rest and in transit.

  • True
  • False

Answer: True

Explanation: AWS CodeCommit automatically encrypts your files and repositories at rest and in transit to ensure the security of your code.

What is the command to clone a repository from AWS CodeCommit in Git?

  • A. git clone codecommit
  • B. git push codecommit
  • C. git fetch codecommit
  • D. git pull codecommit

Answer: A. git clone codecommit

Explanation: To clone a repository from AWS CodeCommit, you would use the command “git clone codecommit”.

True/False: Git-based version control tools don’t provide revert operation.

  • True
  • False

Answer: False

Explanation: Git does support reverting operation. Any commit can be reverted in Git to undo the changes.

In Git, which command allows you to view the commit history?

  • A. git view
  • B. git status
  • C. git log
  • D. git checkout

Answer: C. git log

Explanation: The command “git log” allows you to see your commit history.

True/False: AWS CodeCommit is a fully managed source control service.

  • True
  • False

Answer: True

Explanation: AWS CodeCommit is indeed a fully managed source control service which makes it easy for teams to host secure and highly scalable private Git repositories.

Multiple select: Which of the following AWS features or services can be integrated with AWS CodeCommit?

  • A. AWS CodeStar
  • B. AWS CodePipeline
  • C. AWS X-Ray
  • D. Both A and B are correct

Answer: D. Both A and B are correct

Explanation: AWS CodeCommit can be integrated with other AWS developer tools and services such as AWS CodeStar and AWS CodePipeline.

When using Git, what does the command ‘git checkout’ do?

  • A. It checks your Git version
  • B. It switches to a different branch
  • C. It commits changes to the repo
  • D. It updates the repo from the remote server

Answer: B. It switches to a different branch

Explanation: The command ‘git checkout’ in Git is used to switch from one branch to another.

True/False: AWS CodeCommit doesn’t support private Git repositories.

  • True
  • False

Answer: False

Explanation: AWS CodeCommit actually makes it easy for teams to host secure and highly scalable private Git repositories.

What does ‘git push’ command do in Git?

  • A. It fetches the latest version of the code from the repository
  • B. It downloads the updates from the server
  • C. It updates the remote references and pushes the changes to the server
  • D. It undoes the latest changes in the workspace

Answer: C. It updates the remote references and pushes the changes to the server

Explanation: The ‘git push’ command is used to update the remote references and push the associated objects to the remote repository.

Which AWS service allows Git to connect over SSH?

  • A. AWS Key Management Service
  • B. AWS Identity and Access Management
  • C. AWS CodeCommit
  • D. AWS Direct Connect

Answer: C. AWS CodeCommit

Explanation: AWS CodeCommit allows Git to connect over HTTPS, SSH, and Git protocols.

True/False: You can use AWS IAM to manage access to CodeCommit repositories.

  • True
  • False

Answer: True

Explanation: Yes, you can use AWS Identity and Access Management (IAM) to manage access to CodeCommit repositories.

What does ‘git pull’ command do in Git?

  • A. It pushes local changes to the repository
  • B. It merges changes from the repository into the current branch
  • C. It discards changes in the workspace
  • D. It shows the status of the workspace

Answer: B. It merges changes from the repository into the current branch

Explanation: ‘git pull’ command fetches the updates from the repository and merges it into the current branch.

True/False: We can’t have multiple branches in a Git repository.

  • True
  • False

Answer: False

Explanation: In Git, we can efficiently manage multiple branches in a repository. This feature enhances concurrent and parallel workflows.

Interview Questions

What is a Git?

Git is a distributed version control system that lets multiple developers work on the same project at the same time. It keeps track of all changes made to files and allows for easy collaboration and conflict resolution.

What is AWS CodeCommit?

AWS CodeCommit is a managed source control service that hosts secure Git-based repositories. It enables teams to easily collaborate on code in a secure and scalable ecosystem.

What is the primary function of a version control system like Git?

The primary function is to keep a history of all changes that have been made to a codebase and to coordinate work between multiple developers. It also aids in resolving conflicts, testing new features, and reverting back to older versions of code if necessary.

What is a repository in Git?

A repository in Git is a directory where Git has been initialized to start version controlling the files. It includes all the files and folders associated with a project and stores each file’s revision history.

How does AWS CodeCommit secure the Git repositories?

AWS CodeCommit secures your repositories by encrypting all data at rest and in transit. It also provides access control, audit logs, and manages permissions through AWS Identity and Access Management (IAM).

What is a branch in Git?

A branch in Git is a pointer to a snapshot of changes in the code. It allows developers to create an isolated environment to work on a new feature without affecting the main codebase.

How can developers push their updates to the AWS CodeCommit repositories?

Developers can use standard Git commands to push their updates to AWS CodeCommit repositories. Also, the AWS CLI or AWS SDKs can be used.

What is a ‘commit’ in Git?

A commit in Git is a point in time snapshot of your project’s changes. Each commit includes a unique ID, a timestamp, the author’s information, and a message describing the changes.

How do you create a new Git repository in the AWS CodeCommit?

By using the AWS Management Console, AWS CLI, or the AWS SDKs, you can create a new AWS CodeCommit repository. The mandatory requirement is the repository name.

How does Git handle content?

Git treats content as a series of snapshots. When you make a commit, Git takes a snapshot of all the files and stores a reference to that snapshot.

Is it possible to migrate an existing Git repository to AWS CodeCommit?

Yes, it is possible to migrate an existing Git repository to AWS CodeCommit. We could do that by cloning the existing repository and pushing it to the new AWS CodeCommit repository.

How do you revert an unintended commit in Git?

You can use the ‘git revert’ command followed by the commit ID to revert an unintended commit. This will create a new commit that undoes the changes made in the unintended commit.

What is the command to clone a repository in Git?

The command to clone a repository in Git is ‘git clone’, followed by the URL of the repository you want to clone.

How is it possible to compare two branches in Git?

By using the ‘git diff’ command, you are allowed to compare two branches in Git. You just need to specify the names of the branches that you want to compare.

How can you track changes in a file using Git?

The ‘git log’ command can be used to track changes in a file. It displays a list of commits that are currently in the repository in reverse chronological order.

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