Git Basics: Commits and Branching
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Questions and Answers

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?

<p>Easy access to different versions, allowing team members to work on separate features or fixes</p> Signup and view all the answers

How are commits identified in Git?

<p>By a 40-character hash code, which can be abbreviated</p> Signup and view all the answers

What is the result of merging branches in Git?

<p>Combining changes from multiple branches into a single branch</p> Signup and view all the answers

What is the primary benefit of creating a new branch in Git?

<p>To make experimental changes without risking what you're already done and what everyone else is working on.</p> Signup and view all the answers

What command is used to create a new branch in Git, based on the last commit in the current branch?

<p>git branch mynewbranch</p> Signup and view all the answers

What happens when you switch to a new branch using 'git checkout mynewbranch'?

<p>It will delete and replace your code with the latest version in 'mynewbranch'.</p> Signup and view all the answers

How can you create a new branch based on any specific commit in Git?

<p>git branch mynewbranch ff823e</p> Signup and view all the answers

What command is used to list the existing branches and see which one is current in Git?

<p>git branch</p> Signup and view all the answers

What is the purpose of renaming a branch in Git, and how is it done?

<p>To rename a branch, for example, to give it a more descriptive name; git branch -m mynewbranch featurexyz</p> Signup and view all the answers

What is the purpose of feature branches in Git, and how do they relate to the 'master' branch?

<p>Feature branches are where most work is done, and this work must eventually be merged into the 'master' branch.</p> Signup and view all the answers

What does the 'git merge' command do, and what type of commit is created as a result?

<p>The 'git merge' command merges another branch into the current one, creating a special 'merge commit' that combines the last commits from both branches.</p> Signup and view all the answers

How does Git determine how to merge changes from different branches?

<p>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.</p> Signup and view all the answers

What is the outcome of merging a feature branch into the 'master' branch?

<p>The outcome is that the work from the feature branch is incorporated into the 'master' branch, and the feature branch can be deleted.</p> Signup and view all the answers

Why is merging important in Git, and what would happen if it weren't possible?

<p>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.</p> Signup and view all the answers

What is the purpose of the 'merge commit' in Git, and how does it relate to the branching history?

<p>The 'merge commit' is a special commit that combines the last commits from multiple branches, and it represents the merge of the branching history.</p> Signup and view all the answers

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