Git Interview Questions and Answers
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Best Git Interview Questions and Answers
These top 50 Git Interview Questions and Answers are frequently asked by the Git interviewers to estimate the ability of the Git experts. All the questions listed here are important and aspirants who prepare these questions will earn an advantage of cracking the interview at ease. Coursejet has a separate team to enlist the priority concepts in Git and we have bought you the most important questions from the interview point of view. In this blog, we have compiled Git concepts like commits, branching, version control system, pull and push command, merge and amend command, merging, index or staging area, Github, subdirectories and more. If you are preparing for a Git interview, then this set of 50 Git interview questions will be your cup of coffee. Elevate your skill and come up in life with our carefully described Git interview questions.
Top Git Interview Questions and Answers
Both beginners and experienced Git professionals can prepare these questions to pave way for career development and excellence. As per a recent survey, it is stated in the recent days, there are utmost 40 million users who taste the benefits of Git and so there are huge opportunities and openings for Git experts. Coursejet recommends aspirants to get certified in Git and explore huge job openings such that they earn more and boost their lifestyle with the best career in life. Most of the aspirants have acquired their Git career by using these Git interview questions and we wish you all a happy and successful career in life.
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This is one of the common Git interview questions which aspirants can expect in every Git interview and the answer to this question can be as follows:
- A Distributed Version Control System (DVCS) that allows you to identify the modification made to a specific file and that permits you to return to any specific change of your desire is known as Git.
- Git is also a distributed architecture that ensures maximum benefits rather than the other version control system which include SVN and more. The major significance of Git is that it does not comment on the central server while storing all the latest versions of any particular project files.
- With Git, developers can commit modifications in the central cloud repository and you can share these changes easily with your teammates without hassles.
- Git consists of a local repository where the history of projects will be stored and when there is any data loss; developers can recover the data from the local repository.
| Git | SVN |
| Git is one of the decentralized version control tools | SVN is one of the centralized version control tools |
| It is one of the 3rd generation version control tools | It is one of the 2nd generation version control tools |
| The entire repository can be cloned to the local systems | The history of every version is stored in the server-side repository |
| Developers can commit even when offline | Commits are allowed only during online |
| Git permits faster push and pull operations | In SVN, the push and pull operations will be slower |
| Commit automatically distributes the work | Automatic distribution is not allowed in SVN |
The advantages of Git are as follows:
- It assures replication and data redundancy
- It is highly available and easy to collaborate
- Every repository will have only one Git directory and this is an added benefit
- It assures better network performance and disk utilization
- Every project can make use of the benefits of Git without any restriction
This question is frequently asked by the Git Interviewers. The team of Coursejet has consulted with several recruiters and has bought you the top 50 Git Interview questions and answers in this blog. So, prepare wisely and succeed in your career.
Git is one of the version control systems using which you can track modifications along with the source code while the entire software development while the repository hosting service for Git is known as the GitHub which provides additional features that include collaboration, access control, and some of the extraordinary task management tools.
This question is most important and aspirants can expect this question in their upcoming Git interviews. Following are the ways you can explain what DVCS or Distributed Version Control System is:
- The system that doesn’t depend on the central server to store the project files and its versions are known as the distributed version control system or the DVCS.
- The clone or the copy of the main repository will be shared with every contributor of the distributed version control system or the DVCS.
- Every programmer will have a copy or the clone of the central repository in their hard drives and so they can easily commit and update the local repository as and when required.
- The local repository can be easily updated with a new or the recent data from the central server with the help of the “Pull” operation.
Listed below are some of the main advantages of using a Version Control System or VCS:
- At any time from anywhere, every programmer can make changes to the project file with the help of a version control system or VCS.
- VCS is actually a collection of previous versions and all its associated variants and so programmers can access any version of their desire at any time and work on it easily.
- On updating a new version into the version control system, it will ask you to tell something about the changes done in the new version of the project file, so that you can get to the changes and the person who commits those as and when required.
- A DVCS like Git will assist every team member while there is a data loss in the central server as every contributor will have the copy or clone of the project files in their local repository.
8 of 10 aspirants can expect this question in Git interviews. This is an important question which you should never miss brushing up before attending a Git interview.
Git prefers “C” language as Git is one of the most reliable and the fastest version control system. Also, it can be used to reduce the overheads present in the run time.
Listed below are some of the commands used in Git and their functionality:
- Git config – It can be used to configure email address and the username.
- Git add – It can be used to affix one or several files into the staging area.
- Git diff – It can be used to access the changes done in the project file.
- Git init – It can be used to initialize an empty repository of Git.
- Git commit – With this command, we can make commit changes to the head at ease but we cannot commit changes to the remote repository.
The git clone command is used to generate a copy of the existing repository of Git. Most of the programmers trust the concept of cloning to get a copy of the central repository.
To develop a new entry in the git config that defines the particular URL’s name, the ‘git remove add’ command can be used whereas to create a copy of the existing git repository in a specific URL, the ‘git clone’ command can be used.
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The main function of the Git config is to modify the Git configurations including the username.
The most common Git hosting repositories are as follows:
- GitHub
- GitLab
- BitBucket
- Beanstalk
- FogBugz
- Surround SCM
- Buddy
This is one of the beginners level Git interview question asked for most of the freshers.
The place where Git stores all the files are is known as the repository and these files can be stored either on a remote repository or a local repository.
This is one of the most frequently asked Git interview questions. Practice all the top 50 Git interview questions posted by the team of Coursejet to crack the Git interviews at ease.
Firstly, create a directory, and then execute the “git init” command to create a repository and with the help of this command a .git directory will be easily generated in the project directory.
Space where version control’s information and the files that are not working are stored is known as the bare repository and it does not contain any of the .git sub directories but all the contents of the .git sub directories will be stored in the main directory present in the bare repository while the working or the current directory will consist of the following:
- A .git sub directory that holds all the version history of the repositories present in Git.
- The project file’s checked out copies and working tree.
The data or content in the local repository can be pushed into the remote repository effectively with the help of the “GIT PUSH” command. Once data in the local repository is updated, the changes are shared with the remote team members with the help of the “GIT PUSH” command.
With “GIT PULL” command, we can easily fetch and merge the changes done in the remote repository to the local repository. Both “GIT FETCH” and “GIT MERGE” command are involved in “GIT PULL” to complete the process of the command.
The table listed below will illustrate the difference between Git pull and Git fetch command.
Git Pull | Git Fetch |
With Git Pull, the latest modifications done in the remote server can be updated in the ongoing head. | It downloads only the new or updated data from the remote repository. |
It can be used to merge the new with the current project file. | It cannot merge the newly updated data into the current project file. |
It can also merge the changes from the remote with the local team. | It updates the remote-tracking branches at any time. |
“Yes” I have heard of it! The current of the present working branch is referred to as the “HEAD”.
The conflict in Git arises when the current commit and the commit that has to be merged undergoes changes at the same place or if one commit is deleted in one branch and edited in the other branch. In this case, Git will not know how to predict the precedence of the changes that have to take place. Conflict mostly occurs in a team working environment.
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Yes, resolving a conflict in Git is plain sailing while you follow the list of steps given below:
- Firstly, find out the files that are the source for the conflict in Git.
- Then, make measures or modifications to such files so that this type of conflict will not occur again.
- With the help of git add command affix these files at ease.
- Finally, commit the edited file using the command git commit.
- This is one of the intermediate levels Git interview question asked in many interviews.
Every time you work on a project file, the process turns messy as you will be required to shift between branches to work here and there. The reason behind this shifting is because you will not wish to commit a half-done work and so you will get into it to complete whenever possible and this issue can be denoted as Git stash.
The process of stashing is that it collects the working directory which includes the files that are modified and tracked and the changes that are staged and stores all these data in a stack that holds all the half-done works so that you can rework on it at any time.
This question is important for every aspirant who prepares for Git interviews. The Git stash drop command can be used when you no longer require a specific stash and when you want to remove it.
To continue the particular work from where you have left, you can use the ‘git stash apply’ command. This will take you to the last saved changes present in the present working directory.
While creating a commit, the intermediate place where you can edit, format or review the commit to be created is known as the ‘staging area’ or ‘index’ in Git.
To maintain the progress that has been occurred in the local repository, we can make use of the commit command and this command can be used only after adding the files that have to be committed into the staging area with the help of git add command.
To write a message, make use of the ‘git commit –m’ command.
The ‘git commit –amend’ command can be used to set back a broken command. This command will merge the staged changes with the previous commit rather than developing an entirely new commit.
This is the most important and frequently asked Git interview question by Git interviewers which aspirants have to prepare before attending the interview. Coursejet brings you the frequently asked questions such that you can crack the interview at ease.
Following are the main constituents of the commit object:
- The project’s current state at a particular time period.
- The commit references from the parent objects.
A 40 character string that detects the commit object known as SHAI name.
The three basic operations of Git are as follows:
- Branching
- Merging
- Rebasing
Branching in Git helps you to create your own branch and it will also help you in switching between several branches. You can jump easily into the previous work by keeping the current work intact without hassles using branching in Git.
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Having a ‘main branch’ is one of the advantages ways to create a new branch which can be used to execute the changes. The process of creating new branches can be used when there are more developers working on a single project.
The different types of branches created in Git are as follows:
- Feature branches – This branch is used to generate a feature.
- Release branches – To release a particular code to production, this branch can be used.
- Hotfix branches – To detect or to fix an issue in the production, this branch is used to release hotfixes.
The version of the source code that is being written by the developer is known as the revision which sums to the commit in Git. The commits can be identified by the users using SHA1 secured hashes.
git diff and git status are identical but git diff shows the difference between various commits, working directories and indexes.
Following are the leading graphical Git clients for LINUX are as follows:
- Git Cola
- Git-g
- Smart git
- Giggle
- Git GUI
- qGit
Following are some of the basic commands in Git. This is one of the important questions in the Git interviews.
git rm [file] – This command will delete the files present in the working directory and it stages the recent deletion.
git log – The current version of the recent working branch will be displayed using this command.
git show [commit] – The specific commit’s metadata and the changes will be displayed.
git tag [commitID] – This command is used to provide tags to the particular commit.
git checkout [branch name] – Using this command you can move from one branch to another branch.
git checkout –b [branch name] – It can be used to create and switch to that particular branch.
Yes, Git rebase is referred to be an alternative for Git merging.
The syntax for rebasing is as follows:
git rebase [new-commit]
The roles of AWS in DevOps are as follows:
- AWS is used to automate complex tasks and it assures more time for the users to innovate new concepts in DevOps.
- With AWS service, users can manage single or thousands o
Subgit is used for smooth and effective transformation from SVN to Git and the uses of Subgit are as follows:
- Subgit is easy to use.
- Subgit can be used to create a writable Git mirror that belongs to a supervision repository.
- Subgit also generates a bi-directional mirror which can be used to push to Git and commit to supervision.
- Also, it takes care of the synchronization across Git and supervision.
- Without the need to set up or install software, users can ensure a flexible and easy-to-use operation.
Aspirants should get to know this concept as it is very important. Coursejet has introduced top 50 Git interview questions which will be useful for aspirants to crack the Git interview. The Git hooks can be explained as follows:
- Git hooks are nothing but the scripts that are executed automatically during the execution of specific events in the Git repository.
- Git hooks automate the workflow and customize the internal behavior of the current Git.
- Also, it can be used to enforce a commit policy in Git.
The uses of Git instaweb are as follows:
- To browse a Git repository in a secure web browser, the Git instaweb script can be used.
- Git instaweb makes both gitweb and web server active such that the current repository is online.
This is one of the most important Git interview questions. So prepare carefully and attend the Git interview confidently. The Git rerere can be explained as follows:
- rerere is one of the hidden features in Git.
- rerere can be defined as “Reuse Recorded Resolution”.
- Using Git rerere, Git remembers how a hunk conflict is resolved so that when the same hunk conflict occurs, Git resolves it automatically without any delay.
Yes, Git blame shows the commit and the name of the person who is responsible for the commit and in which line the commit occurs.
Tree describes the object which indicates the directory. The tree holds blobs and the sub directories. The tree can also be stated as the binary file which consists of the references of the blobs. The tree object’s SHA1 hash can also be denoted as the tree.
The three main trees that are effectively maintained and managed by Git are as follows:
- HEAD – The last commit snapshot is nothing but HEAD
- Index – The proposed next commit snapshot is known as the index
- Working Directory – The sandbox for executing changes are known as the working directory
Listed below are the three steps involved in the working Git:
- Analyze the project entirely from the HEAD to the working directory
- Next, you will have to stage the files from the working directory to index
Then, commit all the changes from the index to HEAD
The team of Coursejet has consulted with several Git recruiters and found this question more frequently asked in the Git interviews. Aspirants can answer this question as stated below:
- To search for a particular string or any specific expression in a working directory or the committed tree, a grep command is used in Git.
- Gir grep is a particular command that works in the files that occur in a working directory by default.
- Lightweight tag and Annotated tag are the two types of tags that are supported by Git.
- The lightweight tag acts as a branch and it does not change and a lightweight represents a pointer of any specific commit.
- The annotated tag is stored in the form of objects in the database of Git.
- All the tags consist of the following – the name of the tagger, date of the tag, mail id of the tagger, and the message of the tag. Also, all the tags that are supported in Git have to be verified and authorized by the GNU Privacy Guard or the GPG.
As human are prone to changes, Git allows to undo only particular work while users cannot undo all the works, so users have to be cautious while working with Git.
The person who originally wrote the project is an author and who committed changes to the project is known as the committer.
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