Git Reflog Quiz

Check understanding of reflog scope, HEAD and branch reflogs, reflog-based revision names, and retention boundaries.

9 questions

Knowledge check

Check understanding of reflog scope, HEAD and branch reflogs, reflog-based revision names, and retention boundaries.

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What does a reflog record?

A reflog records when references were updated in the local repository.
Which reflog records branch switching?

The official git-reflog documentation explicitly says the HEAD reflog records branch switching.
What does `main@{1}` mean?

The official gitrevisions syntax defines ref@{n} as the n-th prior value of the reference.
What is the main difference between a reflog and commit ancestry?

They answer different questions: reference movement over time versus commit graph ancestry.
After `git reset --hard HEAD~1` on main, what can `main@{1}` identify?

The reflog preserves a revision name for the earlier local reference value.
What does `git reflog exists refs/heads/main` tell you?

The official exists subcommand exits successfully when the named ref has a reflog.
What is the correct scope of a reflog?

Reflogs are local reference history, not shared remote histories.
Why is reflog retention a recovery boundary?

The official documentation defines expiration settings and defaults for reachable and unreachable entries.
Which command lists refs that currently have reflogs?

The `list` subcommand lists all refs with corresponding reflogs.

What does a reflog record?