Git Git Branching and Merging 3

Question 1

Which command switches to an existing branch using the modern Git syntax?

Accepted Answer

git switch branch-name

Answer

The `git switch` command (introduced in Git 2.23) is the modern way to switch between existing branches.

Question 2

What is the effect of merging a branch into itself?

Accepted Answer

Git throws an error

Answer

Git prevents merging a branch into itself and throws an error stating there is nothing to merge.

Question 3

What flag shows the branches that have NOT been merged into the current branch?

Accepted Answer

--no-merged

Answer

The `git branch --no-merged` flag lists branches whose latest commits are not yet reachable from the current HEAD.

Question 4

How can you create a branch from a specific commit hash?

Accepted Answer

git branch new-branch <commit-hash>

Answer

Passing a commit hash as the second argument to `git branch` creates a new branch starting at that specific commit.

Question 5

Which merge strategy is default when merging two branches?

Accepted Answer

recursive

Answer

The 'recursive' strategy is the default for two-branch merges; newer Git versions use 'ort' which is an improved version of recursive.

Git Practice Test