git push to upload commits - Practice Problems & Coding Challenges

Challenge - 5 Problems

💻 Command Output

intermediate

What is the output of this git push command?

You have committed changes locally. You run git push origin main. What is the expected output if the push is successful?

Git

git push origin main

A

fatal: 'origin' does not appear to be a git repository
fatal: Could not read from remote repository.

B Nothing to push, working tree clean

C

error: failed to push some refs to 'github.com:user/repo.git'
hint: Updates were rejected because the remote contains work that you do
hint: not have locally. This is usually caused by another repository pushing
hint: to the same ref.

D

Enumerating objects: 5, done.
Counting objects: 100% (5/5), done.
Delta compression using up to 4 threads
Compressing objects: 100% (3/3), done.
Writing objects: 100% (3/3), 350 bytes | 350.00 KiB/s, done.
Total 3 (delta 1), reused 0 (delta 0), pack-reused 0
To github.com:user/repo.git
   abc1234..def5678  main -> main

💡 Hint

Think about what a successful push message looks like in git.

When you push commits successfully, git shows progress of objects being sent and confirms the branch update on the remote.

🧠 Conceptual

intermediate

What does git push do?

Choose the best description of what git push does in git.

A Uploads your local commits to a remote repository branch.

B Downloads commits from a remote repository to your local branch.

C Deletes the remote repository.

D Creates a new branch in your local repository.

💡 Hint

Think about the direction of data flow when you push.

git push sends your local commits to update the remote repository branch.

❓ Troubleshoot

advanced

Why does this git push fail with 'non-fast-forward' error?

You run git push origin main and get this error:

error: failed to push some refs to 'github.com:user/repo.git'
hint: Updates were rejected because the remote contains work that you do
hint: not have locally.

What is the most likely cause?

A You have no commits locally to push.

B Your local branch is behind the remote branch; you need to pull and merge first.

C The remote repository URL is incorrect.

D You do not have permission to push to the remote repository.

💡 Hint

Check if your local branch is up to date with the remote branch.

This error happens when the remote branch has commits your local branch lacks. You must pull and merge before pushing.

🔀 Workflow

advanced

What is the correct sequence to push local commits to a new remote branch?

You created a new branch locally named feature-x. You want to push it to the remote repository for the first time. Which command sequence is correct?

A git push -u origin feature-x

B git push origin feature-x

C git push origin main

D git push --delete origin feature-x

💡 Hint

Think about setting upstream tracking for the new branch.

Using git push -u origin feature-x pushes the branch and sets it to track the remote branch for easier future pushes.

✅ Best Practice

expert

Which practice helps avoid conflicts when pushing to a shared remote branch?

You and your team push to the same remote branch frequently. Which practice best reduces push conflicts?

A Delete the remote branch and recreate it before pushing.

B Force push your commits to overwrite remote changes.

C Always pull and merge the latest remote changes before pushing your commits.

D Push without pulling to save time.

💡 Hint

Think about syncing your local branch with remote before pushing.

Pulling and merging latest changes ensures your local branch is up to date, reducing conflicts when pushing.