Listing branches in Git - Practice Problems & Coding Challenges

Challenge - 5 Problems

💻 Command Output

intermediate

What is the output of 'git branch' after creating two branches?

You have a Git repository with the default branch named main. You run these commands:

git branch feature1
git branch feature2

Then you run git branch. What is the output?

Git

git branch feature1
git branch feature2
git branch

A

  main
  feature1
  feature2

B

* feature1
  feature2
  main

C

* main
* feature1
* feature2

D

  feature1
  feature2
* main

💡 Hint

The asterisk (*) marks the current branch.

The git branch command lists all branches. The current branch is marked with an asterisk (*). Since you did not switch branches, main is current.

💻 Command Output

intermediate

What does 'git branch -r' show?

You cloned a repository and run git branch -r. What does this command list?

Git

git branch -r

A Lists all remote-tracking branches

B Lists all local branches

C Lists all branches including local and remote

D Lists all tags in the repository

💡 Hint

Remote branches are branches on the server you cloned from.

The -r option shows remote-tracking branches, which represent branches on the remote repository.

❓ Configuration

advanced

How to list branches sorted by last commit date?

You want to list all local branches sorted by the date of their last commit, most recent first. Which command achieves this?

A git branch --sort=-committerdate

B git branch --sort=authorname

C git branch --sort=refname

D git branch --sort=-authordate

💡 Hint

The --sort option can sort by commit dates; the minus sign reverses order.

The --sort=-committerdate option sorts branches by the committer date descending (most recent first).

❓ Troubleshoot

advanced

Why does 'git branch' show no branches after cloning?

You cloned a remote repository with git clone https://example.com/repo.git. Then you run git branch and see no output. Why?

A The repository has no branches on the remote

B You cloned with --bare option, so no local branches exist

C You are in a detached HEAD state after cloning

D You need to run 'git fetch' to get branches

💡 Hint

Bare repositories do not have working copies or local branches.

Cloning with the --bare option creates a repository without a working directory and no local branches, so git branch shows nothing.

✅ Best Practice

expert

Which command safely lists all branches including remote and local with verbose info?

You want to see all branches, local and remote, with last commit info, in a single command. Which is the best command?

A git branch -r -v

B git branch --all --sort=-committerdate

C git branch -a -v

D git branch -v --merged

💡 Hint

The -a option shows all branches, -v adds commit info.

The command git branch -a -v lists all branches (local and remote) with the last commit info.

Practice

1. What does the command git branch show by default?

easy

A. All remote branches in the repository

B. All local branches in the repository

C. All branches, both local and remote

D. The current branch only

Solution

1. Step 1: Understand the default behavior of git branch

   The command git branch without any options lists only the local branches in your repository.

2. Step 2: Differentiate from remote branches

   Remote branches require the -r option, and all branches require -a. So by default, it shows local branches only.

3. Final Answer:

   All local branches in the repository -> Option B

4. Quick Check:

   Default git branch = local branches [OK]

Hint: No option means local branches only [OK]

Common Mistakes:

• Confusing local with remote branches
• Thinking it shows all branches by default
• Assuming it shows only the current branch

2. Which command correctly lists all remote branches in a Git repository?

easy

A. git branch -r

B. git branch -a

C. git branch --remote-list

D. git branch --all-remote

Solution

1. Step 1: Identify the option for remote branches

   The option -r with git branch lists all remote branches.

2. Step 2: Verify other options

   -a lists all branches (local + remote), but the question asks only for remote branches. The other options are invalid.

3. Final Answer:

   git branch -r -> Option A

4. Quick Check:

   -r means remote branches [OK]

Hint: Use -r to list remote branches only [OK]

Common Mistakes:

• Using -a to list only remote branches
• Typing invalid options like --remote-list
• Confusing remote with local branches

3. You want to list all branches but exclude remote branches from the output. Which command should you use?

easy

A. git branch -r

B. git branch -a

C. git branch

D. git branch --no-remote

Solution

1. Step 1: Understand the requirement

   You want to list all branches but exclude remote branches, so only local branches should appear.

2. Step 2: Identify the correct command

   git branch by default lists only local branches. git branch -a lists all branches including remote, git branch -r lists only remote branches, and git branch --no-remote is invalid.

3. Final Answer:

   git branch -> Option C

4. Quick Check:

   Default git branch = local branches only [OK]

Hint: No option lists local branches only [OK]

Common Mistakes:

• Using git branch -a, which includes remote branches
• Using invalid options like --no-remote
• Confusing remote and local branch listings

4. What is the output of the command git branch -a if your repository has local branches main, dev and remote branches origin/main, origin/feature?

medium

A. * main\n dev\n remotes/origin/main\n remotes/origin/feature

B. * main\n dev

C. remotes/origin/main\nremotes/origin/feature

D. * origin/main\n origin/feature

Solution

1. Step 1: Understand git branch -a output format

   This command lists all branches: local branches are shown plainly, remote branches are prefixed with remotes/.

2. Step 2: Match branches to output

   Local branches main and dev appear without prefix. Remote branches appear as remotes/origin/main and remotes/origin/feature. The current branch is marked with *.

3. Final Answer:

   * main\n dev\n remotes/origin/main\n remotes/origin/feature -> Option A

4. Quick Check:

   -a shows all branches with remotes/ prefix [OK]

Hint: All branches show; remotes have remotes/ prefix [OK]

Common Mistakes:

• Missing remotes/ prefix for remote branches
• Showing only local or only remote branches
• Not marking current branch with *

5. You ran git branch -r but got an error: error: unknown option '-r'. What is the likely cause?

medium

A. You need to use git remote branch instead

B. You typed git branch -r in a non-Git directory

C. You forgot to fetch remote branches first

D. You used an old Git version that does not support -r

Solution

1. Step 1: Analyze the error message

   The error says unknown option '-r', meaning Git does not recognize the -r flag.

2. Step 2: Identify possible causes

   This usually happens if the Git version is very old and does not support -r with git branch. Other options would give different errors or no error.

3. Final Answer:

   You used an old Git version that does not support -r -> Option D

4. Quick Check:

   Old Git versions lack -r option [OK]

Hint: Check Git version if options cause unknown errors [OK]

Common Mistakes:

• Assuming wrong command syntax
• Thinking fetch is required to list remote branches
• Confusing directory errors with option errors