Which command is used to undo a commit that has not been pushed to the remote repository?
- git reset --soft HEAD^
- git revert HEAD
- git reset --hard HEAD^
- git reset HEAD^
The correct option, git reset --hard HEAD^, is used to undo the last commit completely. It discards changes and moves the HEAD pointer to the previous commit. git reset --soft HEAD^ preserves changes, git revert HEAD creates a new commit to undo changes, and git reset HEAD^ is for unstaging.
To push a specific tag to a remote repository, use the command git push origin ________.
- master
- HEAD
- remote
To push a specific tag in Git, the command is 'git push origin '. This command sends the specified tag to the remote repository named 'origin.'
In advanced Git hook usage, what is a practical application of a 'pre-receive' hook?
- Enforcing commit message conventions
- Running tests before accepting changes
- Controlling access to the repository
- Rejecting non-fast-forward pushes
The 'pre-receive' hook is often used to enforce server-side checks before accepting changes. This can include rejecting non-fast-forward pushes, ensuring commit message conventions, or running tests to maintain code quality. Understanding the practical applications of this hook is crucial for implementing advanced Git workflows and enforcing custom rules at the server level.
How can Git be integrated with automated build systems?
- By configuring build scripts to pull code from Git repositories
- By manually copying files from Git to the build server
- By disabling version control during the build process
- By relying solely on manual code deployment
Git can be integrated into automated build systems by configuring build scripts to pull the latest code from Git repositories, ensuring an automated and streamlined build process.
The command git _______ is used to view the commit history graphically, showing branches and merges.
- log
- history
- show
- graph
The command git log is used to view the commit history, but for a graphical representation showing branches and merges, the git log --graph command is used. This option helps visualize the branching and merging structure of the repository.
When a merge conflict occurs, which section of the conflict markers indicates the changes from the current branch?
- <<<<<<< HEAD
- =======
- >>>>>>> branch-name
- <<<<<<< branch-name
The section <<<<<<< HEAD indicates the changes from the current branch in a merge conflict. Developers should edit the content between this marker and ======= to resolve conflicts manually.
To streamline repetitive Git operations, a developer can use aliases like git co for checkout or git br for _______.
- branch, browse, blame, branchlist
- branchlist, browse, blame, browse
- browse, branchlist, branch, blame
- branchlist, browse, blame, branch
To streamline repetitive Git operations, a developer can use aliases like git co for checkout or git br for branching. This improves efficiency and reduces the likelihood of errors in commands.
A ________ is a pointer to a specific commit in Git.
- Branch
- Commit
- Merge Conflict
- Tag
A commit is a pointer to a specific state in the Git history. It represents a snapshot of the project at a specific point in time.
A developer is working on a feature in a separate branch and needs to incorporate updates made in the main branch. What Git process should they use?
- Merge
- Rebase
- Clone
- Fetch
When working on a separate branch, using git rebase allows the developer to incorporate updates made in the main branch and apply their changes on top, resulting in a cleaner commit history.
What is a Git alias?
- A shortcut for a Git command
- A unique identifier for a Git repository
- A branch in a Git repository
- A tool for creating Git repositories
A Git alias is a custom shortcut for a Git command. It allows users to create their own shorthand notation for frequently used Git commands, making the command-line interface more efficient and user-friendly. For example, you can create an alias 'co' for 'checkout' to save typing time.