Top 20 AWS CodePipeline Interview Questions and Answers

Model, visualise, and automate the steps necessary to deploy your product with AWS CodePipeline, a continuous delivery service. You can model the entire release process for creating your code, deploying it to test environments, testing your application, and releasing it to production with AWS CodePipeline. Every time there is a code change, AWS CodePipeline then builds, tests, and deploys your application in accordance with the specified workflow. An end-to-end continuous delivery solution can be created by integrating partner technologies and your own unique tools into any stage of the release process.

Ques. 1): What makes AWS CodePipeline a good choice?

Answer:

You can speed up and improve the quality of your software updates by automating your build, test, and release processes with AWS CodePipeline. This is done by subjecting all fresh changes to a standardised set of quality tests.

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Ques. 2): Describe an artefact.

Answer:

A file or set of files are affected when an action is executed. These documents are known as artefacts. Further steps in the pipeline can work on these items. For instance, a build action will read in a source artefact that contains the most recent version of the code that was output by a source action. The build action will upload the build output after compilation so that it can be read by the later deployment activities.

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Ques. 3): How would I begin a pipeline?

Answer:

When you build a pipeline, it will immediately start a run to publish the most recent version of your source code. After then, a fresh run is started each time your source location is modified. Moreover, you can use the Release Change button in the pipeline console to re-run the most recent revision through the pipeline.

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Ques. 4): How can I use AWS Lambda functions and serverless applications to practise continuous delivery?

Answer:

By integrating the AWS Serverless Application Model template and its accompanying files in your source code repository, you can publish modifications to your serverless application. To package your code for distribution, you can utilise AWS CodeBuild in your pipeline. Afterwards, you may develop a change set and launch your serverless application using AWS CloudFormation activities. You have the choice to add more phases to your workflow, such as automated tests or manual approvals.

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Ques. 5): What products can be integrated with AWS CodePipeline?

Answer:

AWS Elastic Beanstalk, AWS CloudFormation, AWS OpsWorks, Amazon ECS, and AWS Lambda are just a few of the AWS services that AWS CodePipeline connects with. AWS CodePipeline also incorporates with a variety of partner products. Finally, CodePipeline allows you to integrate any existing tool and create your own unique actions.

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Ques. 6): Can I allow an IAM user in a different Amazon account to access the pipeline in a different AWS account?

Answer:

Yes. To grant access to the pipeline and any associated resources to an IAM user in another account, you can create an IAM role in the AWS account that owns the pipeline. See Walkthrough: Delegating Access Across AWS Accounts For Accounts You Own Using IAM Roles and Setup Cross-Account Access to a Pipeline for instructions on how to enable such cross account access.

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Ques. 7): What is continuous delivery?

Answer:

A software development method known as "continuous delivery" involves automatically building, testing, and getting code updates ready for production release. You can use AWS CodePipeline as a service to carry out continuous delivery.

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Ques. 8): An transition is what?

Answer:

In the AWS CodePipeline console, the arrows that connect the stages of a pipeline are transitions. The transition arrow represents the automatic sending of revisions to the following stage once they have successfully completed the actions in a stage. Between phases, transitions may be blocked or enabled.

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Ques. 9): Is it possible to duplicate an existing pipeline?

Answer:

Yes. To obtain the JSON structure of your current pipeline, use the Amazon CLI command get-pipeline. Then, you can create a new pipeline with the exact same structure as the previous one using that JSON and the create-pipeline Amazon CLI command.

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Ques. 10): How do I use a release workflow process to provision and manage my AWS resources?

Answer:

You can use continuous delivery to automatically build and test modifications to your AWS CloudFormation stacks before promoting them to production stacks using AWS CodePipeline and AWS CloudFormation. You may quickly and dependably make changes to your Amazon infrastructure using this release method. You can add more actions to your workflow, such as manual approvals, test actions, or the execution of Amazon Lambda functions.

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Ques. 11): How can I set up and administer my AWS resources using a release workflow procedure?

Answer:

Continuous delivery enables you to automatically generate and test modifications to your AWS CloudFormation stacks prior to promoting them to production stacks using AWS CodePipeline and AWS CloudFormation. You may make changes to your AWS infrastructure quickly and reliably using this release method. You can add more steps to your workflow, such as test activities, human approvals, or calls to Amazon Lambda functions.

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Ques. 12): How can I get notified or alerted when something happens in AWS CodePipeline?

Answer:

For events that have an effect on your pipelines, you can generate notifications. Amazon SNS notifications will be used for notifications. Each notification will have a link to the resources whose event caused it, along with a status message. There is no additional price for notifications, but you can be charged for other AWS services that notifications uses, including Amazon SNS. 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. 13): Describe a pipeline.

Answer:

A pipeline is a workflow concept that explains the release procedure for software modifications. The workflow is described using a list of phases and activities.

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Ques. 14): How can a pipeline be stopped?

Answer:

You can disable a transition from one step to another to halt a pipeline. Your pipeline will keep running revisions through the steps after it has been disabled, but revisions will not be promoted via the disabled transition to subsequent stages.

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Ques. 15): Is it possible to obtain a call log for the AWS CodePipeline API?

Answer:

Yes. Simply enable Amazon CloudTrail in the AWS Management Console to acquire a history of all AWS CodePipeline API calls made on your account for security analysis and operational troubleshooting.

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Ques. 16): How do revisions work?

Answer:

A revision is a modification made to the pipeline's specified source location. It may contain data, build output, configuration, or source code. Several revisions may be going through a pipeline at once.

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Ques. 17): Can I modify an already-built pipeline?

Answer:

Yes. You can add or delete pipeline stages as well as add, amend, or remove stage actions using the Amazon CodePipeline console or AWS CLI.

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Ques. 18): What is an action?

Answer:

An action is a procedure carried out on a revision. According on the stage design, pipeline events happen in a predetermined sequence, either serially or concurrently.

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Ques. 19): Can actions run in parallel?

Answer:

Yes. For any stage, you can set up one or more actions to run concurrently.

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Ques. 20): How can I get AWS CodePipeline up and running?

Answer:

You can start using the service by creating a pipeline after logging into the AWS Management Console.

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Top 20 AWS Outposts Interview Questions and Answers

Ques. 1): Why not use the AWS Outposts rack instead of operating in an AWS Region?

Answer:

The Outposts rack can accommodate applications that need low latency or local data processing. These programmes could need to interact with other local programmes, control local hardware, or reply to user requests extremely immediately. Real-time patient diagnostics or medical imaging workloads, multimedia and video streaming, and automated industrial operations are a few examples. To securely store and process client data that requires be on-site or in countries without an AWS Region, a rack can be utilised. You can run data intensive workloads on Outposts rack and process data locally when transmitting data to AWS Regions is expensive and wasteful and for better control on data analysis, backup and restore.

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Ques. 2): Can I use Outposts rack when it is not connected to the AWS Region or in a disconnected environment?

Answer:

An Outpost must be connected to its parent AWS Region. For circumstances with little to no connection or for disconnected operations, Outposts Rack is not designed. Our advice is that customers have highly accessible networking links back to their AWS Region. If you're interested in utilising AWS services in disconnected environments like cruise ships or remote mining areas, find out more about AWS services like Snowball Edge, which are optimised to operate in circumstances with little to no connection.

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Ques. 3): Which S3 use cases are most suited for Outposts?

Answer:

Customers in regulated industries or those who need to store and process client data securely on-site or in locations outside an AWS region should utilise S3 on Outposts. Customers may now perform data-intensive processes for local data processing and on-premises storage using S3 on Outposts. S3 on Outposts will also be beneficial if your applications need to communicate with other on-premises systems or control equipment that is located on-site, such as in a factory, hospital, or research institution.

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Ques. 4): Can I add my own hardware to my Outposts rack as a component?

Answer:

In order to give the greatest AWS experience possible, the AWS Outposts rack offers fully integrated AWS-designed configurations with integrated top-of-rack switches and redundant power supplies. You can order as much compute and storage infrastructure as you need by selecting from the variety of Outposts rack options, or you can work with us to create a unique combination using Amazon Elastic Compute Cloud (EC2), Amazon Elastic Block Store (EBS), and Amazon Simple Storage Service that has the capacity you want (S3). You don't need to do any further setup because they have already been verified and tested, so you can start using them straight away.

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Ques. 5): Is resource sharing supported by the AWS Outposts rack?

Answer:

Yes. Using the AWS Resource Access Manager (RAM) tool, you may share your AWS resources with any other AWS account or with other people who are a part of your AWS Organization. With RAM support, the Outpost owner may centrally create, manage, and distribute Outpost resources including EC2 instances, EBS volumes, subnets, and local gateways (LGWs) among several AWS accounts inside the same AWS organisation. Others may now launch and run instances, build up VPCs, and create EBS volumes using the shared Outpost.

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Ques. 6): Who is responsible for the physical security of the Outposts rack in my datacenter?

Answer:

AWS provides services that provide data encryption both while usage and during transport, in addition to other highly technical security features and auditing methods. Additionally, a Nitro Security Key is physically attached to customer data. When the device is destroyed, the data is also destroyed. As part of the shared responsibility approach, customers are required to confirm that the Outpost is physically secure, that access restrictions are in place, and that it complies with all stated environmental criteria for facility, networking, and electricity. Before returning the Outposts rack hardware, the Nitro Security Key will be removed to make sure that all client data has been cryptographically erased.

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Ques. 7): What kind of control plane data is returned to the primary AWS Region?

Answer:

Examples include relaying information about instance health, activity (started, stopped), and the underlying hypervisor system to the parent AWS Region. This information may be used by AWS to inform customers of the capacity and condition of their instances, as well as to maintain and improve the Outpost. Your team does not need to develop its own tooling in order to maintain these components and actively issue security updates and patches for your Outpost. For administrative and reporting purposes, certain metrics and bucket names from S3 on Outposts data management and telemetry may be kept in the AWS Region. When the link is lost, this data cannot be sent back to the parent Region.

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Ques. 8): Can I order an Outpost from a country or territory where the Outposts rack has not yet debuted and attach it back to a supported Region?

Answer:

No, we are only able to transport and install Outposts rack in countries and territories that permit its shipping and support.

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Ques. 9): EBS snapshots are kept where?

Answer:

Amazon S3 in the Region is the default destination for storing EBS snapshots of EBS Volumes on Outposts rack. If Amazon S3 is enabled on Outposts, you have the option of storing your snapshots locally on your Outpost. Since EBS snapshots are incremental, they only save the blocks on your Outpost that have changed since your most recent snapshot. The recorded snapshots may always be used to restore (hydrate) the EBS Volume on Outposts.

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Ques. 10): Is AWS Outposts Rack GxP compliant?

Answer:

Yes, the AWS Outposts rack adheres to GxP. AWS Outposts expand AWS services to AWS-managed equipment that is situated physically at a client site. Outposts rack capacity may be accessed locally utilising a local gateway that is routed to the customer's local network in addition to having a connection channel back to the AWS Region. The planning and verification of GxP compliance is the responsibility of life sciences companies using AWS services that are subject to GxP standards.

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Ques. 11): Can Outposts rack handle real-time applications with low-latency requirements?

Answer:

Yes, you may use Amazon RDS on Outposts to host managed Microsoft SQL Server, MySQL, and PostgreSQL databases locally for low latency workloads that need to be close to locally stored data and applications. You can manage RDS databases both locally and in the cloud using the same AWS Management Console, APIs, and CLI. Real-time applications for extremely low-latency workloads, such as workloads operating on factory floors for automated manufacturing processes, real-time medical diagnostics, and media streaming, are made possible by ElastiCache on Outposts, which enables sub-millisecond responses.

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Ques. 12): Do the same compliance certifications for Outposts Rack services as for AWS Services now apply?

Answer:

In addition to being HIPAA, PCI, SOC, ISMAP, IRAP, and FINMA compliant, the AWS Outposts rack is also ISO, CSA STAR, and HITRUST certified. In the following months, we plan to add more compliance certifications. You may examine the most recent certification status for AWS Services on Outposts rack on our Services in Scope page. Due to their achievement of certifications like PCI, RDS and Elasticache Redis, two AWS Services on Outposts rack, are recognised as certified on Outposts rack. Because AWS Outpost racks are housed inside the customer's data centre, the customer is in charge of the physical security and access controls around the Outpost for compliance certification under the AWS Shared Responsibility model.

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Ques. 13): Exist any prerequisites before I can set up my Outposts 42U racks?

Answer:

Your site must satisfy the basic power, networking, and space requirements in order to host an Outpost. An Outposts rack can support uplink rates of 1-10-40-100 Gbps, consumes 5-15 kVA, and has space for a 42U rack (80" x 24" x 48"). Outposts rack needs consistent network connections to the AWS Region, therefore be prepared for a public internet connection. Enterprise Service or Enterprise On-Ramp Help, which provides 24/7 remote support within 15 or 30 minutes depending on the Support package selected, is what customers require.

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Ques. 14): Will the servers I have now function in an Outpost?

Answer:

No, the AWS Outposts rack depends on AWS infrastructure, and it is only supported on AWS hardware, which is designed for reliable, secure, and safe operations.

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Ques. 15): What is the status of AWS Outposts' FedRAMP authorization?

Answer:

FedRAMP has given AWS Outposts permission, but not for the service's hardware components. Customers are in charge of keeping up the physical and environmental security measures required to keep AWS Outposts secure while they are on their property. Depending on their level of risk tolerance, customers and agencies can choose to use AWS Outposts or can execute a Type Accreditation to check the hardware components of AWS Outposts before utilising them to run FedRAMP applications. Access to earlier evaluation results from the AWS Third Party Assessment Organization is made available by CapLinked.

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Ques. 16): How can AWS assist in expanding the capacity of current Outposts?

Answer:

You may expand the computation and storage capacity of your AWS Outposts rack using two different methods. By first installing more Outposts racks from the Outposts rack catalogue, you may enhance capacity. Second, you can go from a "small" to a "medium" or "large" configuration, or from a "medium" to a "large" configuration, if your current Outposts racks have available power and places inside the rack. The highest amount of compute and storage capacity that can be added to a rack that can handle 10KVA to 15KVA power consumption is double that amount. Note: The 42U Outposts form factor cannot accommodate the installation of the 1U and 2U Outposts servers.

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Ques. 17): How is the AWS Outposts rack infrastructure maintained?

Answer:

AWS will monitor your Outpost as a part of the public Region once it has been installed and is accessible in the AWS Management Console. AWS will also carry out software updates and patches automatically.

If physical maintenance is required, AWS will get in touch to arrange a visit to your facility. AWS may swap out a specific module if necessary, but it won't service customers' hosts or network switches there.

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Ques. 18): Using EBS Local Snapshots on Outposts, how do I ensure data residency on the Outposts rack?

Answer:

To ensure data residency, you may establish resource-level IAM policies and permissions on your Outpost for EBS Local Snapshots on Outposts and AMI images. A data residency enforcement policy may be put up by each account (or IAM user or role) for one or more Outposts. This will prevent both API/CLI requests made beyond the defined Outposts rack ARN as well as the creation or copying of local snapshots and images. You can track that local snapshots are present at your location since all create, update, and copy actions are recorded in CloudTrail audit logs.

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Ques. 19): Can Outposts Rack satisfy the criteria for data residency?

Answer:

Yes. Using Amazon Elastic Block Store (EBS) and Amazon Simple Storage Service (S3) on Outposts, in the client's on-premises site or a designated co-location facility, customer data may be set to remain on the rack. The data residency needs that we hear from our clients the most frequently are addressed by well-architected apps that use Outposts Rack and AWS services and capabilities. You may manage access to AWS resources using AWS Identity and Access Management (IAM). You may determine which kinds of data must stay on Outposts rack and cannot be duplicated to the AWS Region using IAM and granular data control rules. By default, S3 on Outposts keeps data on your Outpost, and depending on your particular residency needs, you may decide to duplicate all or a portion of your data to other AWS Regions. You may safely process client data locally on the Outposts rack using ElastiCache on Outposts. There will be a small amount of restricted meta-data that flows back to the AWS Region, such as instance IDs, monitoring metrics, metering records, tags, bucket names, etc.

We advise you to confirm and coordinate closely with your compliance and security teams to make sure your particular data residency needs are satisfied.

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Ques. 20): On the Outposts rack, which EC2 instances are available?

Answer:

AWS Outposts rack supports EC2 instances built on the AWS Nitro System for general purpose, compute, memory, storage, and GPU optimization with Intel Xeon Scalable processors, and Graviton processors based EC2 instances are on the way.

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