March 25, 2023

Top 20 AWS CodeCommit Interview Questions and Answers



    AWS CodeCommit is a managed source control solution that is safe, scalable, and makes it simpler for teams to work together on code. You no longer have to manage your own source control system or be concerned about scaling its infrastructure thanks to AWS CodeCommit. AWS CodeCommit integrates smoothly with your current Git tools and may be used to save anything from code to binary files.


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Ques. 1): Amazon CodeCommit should be used by who?

Answer:

Software developers who require a safe, dependable, and scalable source control solution to save and version their code can benefit from AWS CodeCommit. Additionally, anyone searching for a user-friendly, fully managed, version-controlled data repository can use AWS CodeCommit. IT managers, for instance, can store their scripts and setups using AWS CodeCommit. AWS CodeCommit can be used by web designers to store HTML pages and photos.


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Ques. 2): How do I make changes to the files in my repository?

Answer:

Either use Git to interact with the repository, or edit your files directly from the CodeCommit shell. To create a local copy of the AWS CodeCommit repository, for instance, use the git clone command in Git. When you're ready to save the modifications, make changes to the local files and then use the git commit command. To upload the modifications to the AWS CodeCommit repository, use the git push command.


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Ques. 3): Describe Git.

Answer:

Git is a distributed version management system that is open-source. You can use the Git command line interface (CLI) or any of the available Git clients to interact with AWS CodeCommit repositories.


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Ques. 4): How do I make a repository backup?

Answer:

You can utilise a local copy of the repository that you created by performing a complete git clone to restore data. There are numerous ways to create additional backups. Installing Git on your backup server and running a scheduled task that use the git clone command to routinely take snapshots of your repository are two options. If you simply want to transfer the incremental changes, you can use git pull rather than git clone. Keep in mind that depending on how you configure the backup server and the polling frequency, these activities could result in extra user and/or request charges.


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Ques. 5): Can I manage access to AWS CodeCommit using AWS Identity and Access Management (IAM)?

Answer:

Yes. Resource-level permissions are supported by AWS CodeCommit. You can choose which users are allowed to carry out certain tasks for each AWS CodeCommit repository. For a CodeCommit action, you can also provide AWS multi-factor authentication (MFA). This enables you to provide an additional layer of defence against damaging operations like removing repositories. You can define git pull and git push as actions to control access from Git clients in addition to the AWS CodeCommit APIs. By giving a user access to git pull but not git push, you can, for instance, create a read-only user for a repository.


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Ques. 6): What is the price of AWS CodeCommit?

Answer:

Each active user for AWS CodeCommit costs $1 per month. Your account is given an extra 10 GB of storage per month and 2,000 Git requests for that month for each active user. Storage and Git request allotments that have not been used do not roll over to subsequent months. Additional usage will be charged at $0.06 per GB-month and $0.001 each Git request if you need to provide your users with more storage or Git requests. Users are allowed to store an unlimited number of Git repositories. Every month, your usage is totaled across all locations, and the results are automatically applied to your bill.


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Ques. 7): What types of Git requests are counted towards the monthly budget?

Answer:

Any push or pull that sends repository objects is a "Git request." If there is no object transfer as a result of the local and remote branches being current, the request does not count towards your Git request allowance.


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Ques. 8): What distinguishes AWS CodeCommit from other source control solutions based on Git?

Answer:

AWS CodeCommit provides several capabilities that other Git source control systems do not, including:

AWS CodeCommit's fully managed service removes the need for you to host, manage, back up, and scale your own source control servers.

Amazon CodeCommit automatically encrypts your files while they are in transit and at rest for your security. Because Amazon CodeCommit and AWS Identity and Access Management (IAM) are connected, you may provide your repositories user-specific rights.

Strong Scalability, Redundancy, and Durability — AWS CodeCommit is built on AWS services that are strong scalability, redundant, and durable, like Amazon S3 and Amazon DynamoDB.

Scalable - There are no repository size restrictions with AWS CodeCommit, allowing you to save an unlimited amount of files.

Faster Development Lifecycle - AWS CodeCommit keeps your repositories close to your build, staging, and production environments in the AWS cloud. This allows you to increase the speed and frequency of your development lifecycle.


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Ques. 9): How can I get back an AWS CodeCommit repository that was deleted?

Answer:

An Amazon CodeCommit repository deletion is an irreversible harmful one-way operation. You must create the repository from scratch and upload the data using a backup or a local copy made from a full clone in order to restore a deleted repository. We advise utilising IAM policies in conjunction with MFA protection to limit the people who have access to deleting repositories.


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Ques. 10): With AWS CodeCommit, how can I establish webhooks?

Answer:

You can establish an SNS topic in the Amazon SNS console with the desired URL for the webhook and an HTTP endpoint. Then, using triggers, you can link that SNS topic to a repository event via the Amazon CodeCommit console. Customers can also set up notifications to go to their Slack channels or Amazon Chime chat rooms when utilising the AWS Chatbot.


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Ques. 11): Can I allow other accounts to access my repository?

Answer:

Yes. To grant IAM users in other Amazon accounts access to a repository, you can create an IAM role in your AWS account. Assuming the role while issuing commands, the IAM users can then configure their Amazon CLI to use AWS Security Token Service (STS).


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Ques. 12): How does a versioned S3 bucket compare to AWS CodeCommit?

Answer:

Software development teams can collaborate with AWS CodeCommit. It enables parallel branching, version differencing ("diffing"), and manages batches of changes across several files. Comparatively, Amazon S3 versioning allows for the recovery of previous iterations of a single file, but it lacks functionality for tracking batch changes across numerous files or for other aspects of collaborative software development.


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Ques. 13): I need this information for security analysis and operational troubleshooting. Can I acquire a history of AWS CodeCommit Git operations and API calls done in my account?

Answer:

Yes. On the AWS CloudTrail console, you may review recent CodeCommit activities, such as Git operations and API calls. You can make a trail and log events in an Amazon S3 bucket to keep a running log of events.


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Ques. 14): What does AWS CodeCommit's notion of an active user mean?

Answer:

Any distinct Amazon identity (IAM user/role, federated user, or root account) that has accessed AWS CodeCommit repositories through Git requests or the AWS Management Console throughout the month is considered to be an active user. An active user is a server that connects to CodeCommit using a distinct Amazon identity.


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Ques. 15): What protocols for communication does AWS CodeCommit support?

Answer:

You can communicate with AWS CodeCommit using either the HTTPS or SSH protocols, or perhaps both. Install the AWS CLI first before using HTTPS. A Git credential helper that can be customised with AWS credentials is installed by the AWS CLI. All HTTPS requests to AWS CodeCommit are automatically signed using the Signature Version 4 signing protocol. Users generate their own public-private key pairs and include their public keys with their IAM users in order to use SSH. The communication with AWS CodeCommit is encrypted using the private key.


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Ques. 16): Just how do I set up a repository?

Answer:

The Amazon Management Console, the AWS Command Line Interface (AWS CLI), the AWS SDKs, or the AWS CodeCommit APIs can all be used to build repositories.


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Ques. 17): How can I use AWS CodeCommit to encrypt my repository?

Answer:

At rest, repositories are always automatically encrypted. No consumer action is necessary. Repositories are encrypted by AWS CodeCommit using AWS Key Management Service (KMS). An Amazon-managed CodeCommit key is created under your AWS account when you create your first repository.


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Ques. 18): What steps must I take to import my current repository into AWS CodeCommit?

Answer:

Any existing Git repository can be imported into AWS CodeCommit using Git. You can use a Git importer to convert other repositories, such Subversion and Perforce, to Git first.


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Ques. 19): What ports in my firewall should I open to access AWS CodeCommit?

Answer:

You must enable port 22 (SSH) or port 443 for outbound access to an Amazon CodeCommit service endpoint (HTTPS).


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Ques. 20): What Git operations does AWS CodeCommit currently support?

Answer:

Currently, the commands clone, pull, push, and fetch are supported by AWS CodeCommit.


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