18 Questions
What command is used to see the differences between two commits across all files?
git diff 46b9bc 5f14b6
What is a common use case for branching in Git?
To allow multiple simultaneous versions, such as a main 'master' branch and separate 'feature' branches
What is the purpose of a 'feature' branch in Git?
To work on new or experimental features or fixes independently of the main 'master' branch
What is the benefit of using branching in a team environment?
Easy access to different versions, allowing team members to work on separate features or fixes
How are commits identified in Git?
By a 40-character hash code, which can be abbreviated
What is the result of merging branches in Git?
Combining changes from multiple branches into a single branch
What is the primary benefit of creating a new branch in Git?
To make experimental changes without risking what you're already done and what everyone else is working on.
What command is used to create a new branch in Git, based on the last commit in the current branch?
git branch mynewbranch
What happens when you switch to a new branch using 'git checkout mynewbranch'?
It will delete and replace your code with the latest version in 'mynewbranch'.
How can you create a new branch based on any specific commit in Git?
git branch mynewbranch ff823e
What command is used to list the existing branches and see which one is current in Git?
git branch
What is the purpose of renaming a branch in Git, and how is it done?
To rename a branch, for example, to give it a more descriptive name; git branch -m mynewbranch featurexyz
What is the purpose of feature branches in Git, and how do they relate to the 'master' branch?
Feature branches are where most work is done, and this work must eventually be merged into the 'master' branch.
What does the 'git merge' command do, and what type of commit is created as a result?
The 'git merge' command merges another branch into the current one, creating a special 'merge commit' that combines the last commits from both branches.
How does Git determine how to merge changes from different branches?
Git finds the 'common ancestor' of the two branches, which is the point where they first separated, and then uses the 'diff3' algorithm to merge the changes.
What is the outcome of merging a feature branch into the 'master' branch?
The outcome is that the work from the feature branch is incorporated into the 'master' branch, and the feature branch can be deleted.
Why is merging important in Git, and what would happen if it weren't possible?
Merging is important because it allows developers to combine changes from multiple branches into a single, unified branch, and if it weren't possible, feature branches would be useless and development would be limited.
What is the purpose of the 'merge commit' in Git, and how does it relate to the branching history?
The 'merge commit' is a special commit that combines the last commits from multiple branches, and it represents the merge of the branching history.
Learn about Git basics, including commits, branching, and merging. Understand how to identify and manage different versions of your code.
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