Git

What is the FETCH_HEAD file in a Git repository?

GitHard

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What does git gc (garbage collection) do in a Git repository?

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What is the purpose of git rerere (reuse recorded resolution)?

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What is the difference between git reset HEAD~1 and git revert HEAD in terms of history?

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What is git filter-branch and what are its common use cases and risks?

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What is the three-way merge algorithm used by Git and how does it resolve conflicts?

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What is the ‘golden rule of rebasing’ and why does it exist?

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What is the difference between a merge commit and a regular commit in Git’s DAG structure?

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What is an interactive rebase (git rebase -i) and what operations does it support?

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What is Git’s internal object model and what are the four object types?

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What is the purpose of git push –tags?

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What is the purpose of git show?

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What does git grep do?

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What does the git config –global setting control?

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What is a Git hook and where are they stored?

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What is the difference between git merge –no-ff and git merge –ff-only?

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What does git push origin –delete branch-name do?

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What is the purpose of git ls-files?

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