A 'detached HEAD' state in Git occurs when you check out a specific _______ instead of a branch.
- Commit
- Tag
- Remote
- Branch
A 'detached HEAD' state occurs when you check out a specific commit instead of a branch. In this state, you are no longer on any branch, and any new commits will not be associated with a branch, potentially leading to data loss if not handled carefully.
The command git _______ can be used to find a list of all commits that could be causing a merge conflict.
- history
- log
- blame
- diff
The git log command is used to view the commit history. By examining the log, you can identify the commits that may be causing a merge conflict.
In what scenario is rebasing preferred over merging in Git?
- Rebasing is preferred when working on a feature branch that you want to keep clean and incorporate the latest changes from the main branch.
- Rebasing should be used when there are conflicts between branches to create a new, unified commit.
- Rebasing is suitable only for small projects with a limited commit history.
- Rebasing is recommended when you want to preserve the existing branch structure and history.
In-depth Rebasing is beneficial for creating a linear history, especially when working on feature branches, to avoid unnecessary merge commits.
What is the first step to start using Git after installation?
- Initialize a repository
- Commit changes
- Clone a repository
- Stage changes
The first step to start using Git is to initialize a repository using the git init command. This sets up a new Git repository, allowing you to start tracking your project and version controlling your files.
Which command is used to create a new Git repository?
- git create
- git init
- git new
- git start
The correct command to create a new Git repository is git init. This initializes a new repository in the current directory, preparing it for version control. Other options provided are not standard Git commands for creating a repository.
How does Git support Agile development principles like collaboration and flexibility?
- Through its branching and merging capabilities
- By enforcing a strict development process
- By limiting the number of developers in a project
- By providing a centralized code repository
Agile Development with Git
In an enterprise setting, a Git repository's performance is degrading over time due to accumulated obsolete data. What Git maintenance practice would be most effective?
- Git garbage collection
- Git cloning
- Git rebase
- Git cherry-pick
The most effective Git maintenance practice in this scenario is running Git garbage collection. It helps clean up unnecessary data, optimize the repository, and improve overall performance.
A _______ branch is typically used for preparing, polishing, and finalizing a release.
- release
- feature
- master
- hotfix
A release branch is created to prepare, polish, and finalize a release. It is used to stabilize the code and ensure that it is ready for production before merging it into 'master.'
A developer needs to apply a hotfix from the master branch to a release branch without merging other changes. What Git feature should they use?
- Cherry-pick
- Merge
- Rebase
- Clone
The correct option is Cherry-pick. This Git feature allows a developer to select a specific commit and apply it to another branch, making it ideal for applying isolated changes such as hotfixes. Unlike merge or rebase, cherry-pick targets a single commit.
During a database upgrade, a team needs to apply incremental schema changes stored in Git. What strategy should they follow to ensure a smooth transition?
- Feature Branching
- Git Tagging
- Git Rebase
- Git Merge
The team should follow the Git Rebase strategy to apply incremental schema changes during the database upgrade. Git Rebase allows the team to incorporate changes from one branch into another, providing a cleaner and more linear history. This is especially useful in scenarios like database upgrades where maintaining a clean history is crucial for understanding the sequence of changes. Git Rebase helps avoid unnecessary merge commits and simplifies the history, making the transition smoother.