Posted on : 24 May, 2021, 10:22:59 AM
Git is one of the popular source code management systems, which over 40 million people use all around the world. Whether you are a non-technical person or a programmer, Git will help users collaborate with features like task management, bug tracking, and wikis.
Git plays an important role in various organizations to achieve & manage development and operations (DevOps) and refers to a must-know technology; this is the main reason that drives Wissenhive to prepare candidates for the most frequently asked top 50 Git interview questions and answers that might help you in cracking the interview.
Git refers to one of the most popular version control systems that help in tracking changes in computer files and helps in coordinating work among numerous people while monitoring improvement over time, or Git belongs to the tool that facilitates code source management while developing software. It allows various users to work together and efficiently manages large projects.
GitHub uses a version control system or Git for providing hosting on the Internet for software development and version control. Github allows the functionality of source code management and distributed version control, which is located in Git, in addition to other unique features.
|Git is software.||Github is a service|
|Git can be installed locally on the system||Github is hosted on Web|
|Git is a command-line tool||Github provides a graphical interface|
|Git is a tool used to manage different versions of edits made to file in a git repository.||Github is a space that is used for uploading a copy of the Git repository.|
|Git provides functionalities like a version control system and source code management.||It offers functionalities for Git like source code management, VCS, and adding a few of its own features.|
Some of the popular git hosting services are
A VCS or version control system refers to a system that registers all the modifications and changes made to a set of data or a file. It helps in ensuring that every member of the team is working on the latest version of the file.
There are three different types of Version Control Systems.
Git repository is a place in the system where all the information, data, and Git files are stored, which can either be stored on the remote repository or the local repository. These files are carried out from the repositories into the users' local servers for further updates and content modifications.
To generate a Git repository, users must create a project directory if it does not already exist and then execute the "git init" command. By command executing, a .git directory will be generated inside the project's directory, i.e., now the user's project directory has been converted into a Git repository.
|Type of Version Control||Centralized Version Control||Distributed Version Control|
|Global revision number||Available||Not available|
|Content||No hashed content||Cryptographic SHA-1 Hash|
Git is a reliable and fastest version control system, and C language makes this possible. C languages help in reducing the overhead of running times, which is very common in high-level programming languages.
The command “git commit –a” is used to write a commit message. The –a on the command line helps in instructing git to commit the tracked files’ new content that has been modified. Users can use “git add <file>” before git commit -a. If there are new files that need to be committed for the very first time
Git Bash is an installation application that installs Git, Bash, and a few Bash utilities, which are generally used on a Windows OS. Interaction is possible with the repository and Git elements through different commands in Git Bash.
The Git push command refers to a command used to push the content in a local repository to the remote repository. After modifying a local repository, a push is performed to share the modifications and changes with the remote team members.
Git pull command is used to merge and fetch changes from the remote repository to the local repository. Git pull command refers to a combination of two different commands: git fetch, followed by git merge.
|Git pull||Git fetch|
|Git pull updates the current branch of HEAD from the remote server with the latest modifications.||It downloads only new data from a remote repository.|
|Works with current working files by downloading new data and integrating it||It doesn’t integrate any new data into your working files.|
|Tries to merge remote changes with your local ones.||It can be done at any time to update the remote-tracking branches|
|Command - git pull origin master||Command - git fetch origin|
A merge conflict refers to an event when Git remains unable to automatically settle or resolve differences in code between the two commits. Git can merge the changes automatically only if the commits are on branches or different lines.
When users make the commits, they can make changes or modifications to it, format it, and examine it in the intermediate area identified as 'Index' or 'Staging Area.'
Tagging authorizes developers to check and mark all the valuable checkpoints through the project progress course. Instead of IDs commit, tag names can be utilized while commits are inspected and pushed to a remote repo.
The Git clone is a command that allows users to copy the existing Git repository. If there is a need to get a copy of the central repository, then the best way to do it is to use the ‘cloning’ command.\
Git refers to an open-source version system that allows individuals to run project versions that record and show the changes made to the code over time and allow them to keep the backtrack if required and undo those changes. It can be checked out by multiple developers and upload changes that can be attributed to a specific developer.
GIT stash takes the current working state of the index and directory and settles it in on the stack for later, and provides user's back a clean working directory. So, in any case, if users are in the middle of something and require to take over to another job without losing their current edits, then they can use the GIT stash.
A “bare” repository holds detailed information about no working files (no tree) and the version control, and it does not include the particular ( .git ) sub-directory. A bare repository contains all the contents of the .git subdirectory directly in the main directory itself; on the other hand, the working directory is consist of :
Git can manage its merges by utilizing its automatic features of merging. A conflict in git arises when two different branches have made advanced edits in the file to the same line or when a file has been removed from one branch but edited in other; then conflicts are most likely to occur when operating in a team environment.
When users are satisfied with the stashed item or decide to eliminate it from the list, running the git ‘stash drop’ command helps them in removing the latest added stash item by default settings. It can also remove a particular item if the user includes it as an argument.
The git cherry-pick refers to a command that helps in introducing special commits from one branch inside a repository into another branch. Another common use is to back-port or forward commits from the branch of maintenance to a branch of development which contrasts with different ways such as rebase and merge that applies many commits onto the other branches.
A repository copy refers to a fork that enables one to experiment with modifications without disturbing the original project. This forking process is ideal for introducing adjustments to someone else’s projects.
Subgit refers to a tool that is used for stress-free and smooth SVN to Git migration. It is a solution for many companies and known few best features, and those are
The main goal of branching in GIT is to design your own branch and work between those different branches. It also allows users to switch or to go to their previous work while keeping their recent work intact and safe.
The 'git config' command refers to a convenient way for your Git installation to set configuration options. The behavior of the repository, preferences, user, info, etc., can be finely explained through this command.
‘Git Instaweb’ refers to a script that automatically delivers a web browser and runs a web server into your local repository with an interface.
The common way of building branches in Gis is to keep one branch as the “Main“ branch creating another branch to execute new innovative features. This pattern is particularly useful when multiple developers are working on a particular project.
Once all the development branches are merged into the main branch, users do not require a development branch, and to delete the branch, the command “git branch –d [head]” is mostly used.
The command ‘git diff’ helps in tracking and showing the changes between commit, commits, and working tree, etc.; Git is a version control system, and tracking modifications play an important role for it. It compares two inputs and reflects changes made in them.
Users can use the command “git commit—amend” to fix a broken commit. Using this command will help the user in improving the broken commit message in the editor.
This directory includes Shell scripts that automatically run whenever a particular event occurs in the Git repository. It will help users in customizing customizable trigger actions and the internal behavior of Git at crucial points in the development life cycle.
Git log refers to a utility tool to read and review a history of everything that occurs in a repository. With a git log, multiple options can be used to make history more specific. Generally, the git logs a detailed record of commits.
Git reset refers to a powerful command which is used for undoing local modifications to the Git repo state. Git reset works on "The Three Trees of Git," and these trees are the Commit History (HEAD), the Working Directory, and the Staging Index.
Rebasing is used for commits reapplying on the top of other base trips. A commits sequence is implemented from different branches into the final commit. Git rebasing process is a linear process of merging and an alternative to the command for git merge. When rebasing presents, it seems like one has designed a branch from a separate commit.
We, Wissenhive, hope you found the top 50 Git interview questions blog useful and helpful. The questions included in this blog are the most sought-after questions in the Git interview that will help the interviewer make their next interview successful and help get a DevOps professional job!
If you are looking forward to mastering DevOps skills & concepts and earning a certification in the same, do take a look at Wissenhive’s advanced and latest DevOps Certification Course.