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Top 100 AWS DevOps Interview Questions and Answers

Top 100 AWS DevOps Interview Questions and Answers

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1. What is AWS Elastic Beanstalk, and how does it simplify application deployment?

Answer:

AWS Elastic Beanstalk is a Platform-as-a-Service (PaaS) that simplifies application deployment by handling the underlying infrastructure. Developers can focus on code while Elastic Beanstalk manages scaling, load balancing, and application health.

Official Reference


2. Explain the purpose of AWS CodePipeline.

Answer:

AWS CodePipeline is a continuous integration and continuous delivery (CI/CD) service. It automates the build, test, and deployment phases of your application, allowing you to release code changes rapidly and reliably.

Official Reference


3. How do you create a basic AWS CloudFormation template for resource provisioning?

Answer:

Here’s a simple CloudFormation template to create an S3 bucket:

Resources:
  MyS3Bucket:
    Type: AWS::S3::Bucket

Explanation:
This template defines an S3 bucket resource.

Official Reference


4. What is AWS Lambda, and how can it be used in a serverless architecture?

Answer:

AWS Lambda is a serverless compute service. It allows you to run code without provisioning or managing servers. It’s often used for event-driven tasks, like processing files in S3 or responding to API Gateway requests.

Official Reference


5. How do you secure access to AWS resources in an organization?

Answer:

You can use AWS Identity and Access Management (IAM) to manage user access to resources. Create IAM roles, assign permissions, and enable multi-factor authentication (MFA) for additional security.

Official Reference


6. What is AWS CloudFormation Stack Set, and how does it help in managing resources across multiple accounts and regions?

Answer:

AWS CloudFormation Stack Set allows you to create, update, or delete stacks across multiple accounts and regions in a single operation. It helps in managing resources consistently and efficiently across an organization’s AWS environment.

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7. Explain the purpose of AWS Elastic Load Balancer (ELB) and its types.

Answer:

AWS Elastic Load Balancer distributes incoming traffic across multiple targets (such as EC2 instances) to ensure high availability and fault tolerance. There are three types: Application Load Balancer, Network Load Balancer, and Classic Load Balancer.

Official Reference


8. How do you automate EC2 instance provisioning using AWS CLI?

Answer:

You can use the following AWS CLI command to launch an EC2 instance:

aws ec2 run-instances --image-id ami-0c94855ba95c71c99 --count 1 --instance-type t2.micro --key-name my-key-pair --security-group-ids sg-01234567890abcdef --subnet-id subnet-01234567890abcdef

Explanation:
This command launches a t2.micro instance using the specified Amazon Machine Image (AMI), key pair, security group, and subnet.

Official Reference


9. What is AWS CloudWatch, and how does it help in monitoring AWS resources?

Answer:

AWS CloudWatch is a monitoring service that provides real-time and historical data and metrics for AWS resources. It allows you to set alarms, automatically react to changes, and gain insights into the performance and health of your applications.

Official Reference


10. How do you set up automatic backups for an Amazon RDS database?

Answer:

You can configure automated backups for an Amazon RDS database using the AWS Management Console or AWS CLI. In the Console, navigate to the RDS dashboard, select your DB instance, and enable automated backups in the “Maintenance” section.

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11. Explain the purpose of AWS Identity and Access Management (IAM) roles.

Answer:

IAM roles provide permissions for resources to access other AWS resources securely. They are used by services like EC2 instances, Lambda functions, and more to interact with other AWS services without needing long-term credentials.

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12. How do you deploy an application to AWS Elastic Beanstalk?

Answer:

  1. Package your application into a ZIP or JAR file.
  2. Navigate to the Elastic Beanstalk dashboard in the AWS Console.
  3. Create a new application and environment, specifying your application source.
  4. Upload the ZIP/JAR file and deploy.

Official Reference


13. What is AWS CloudTrail, and how does it help in auditing AWS account activity?

Answer:

AWS CloudTrail is a service that records API calls and actions taken on AWS resources. It provides an audit trail, allowing you to track changes, troubleshoot, and ensure compliance with security policies.

Official Reference


14. How do you automate the deployment of AWS Lambda functions?

Answer:

You can use AWS CloudFormation or AWS Serverless Application Model (SAM) to define Lambda functions and their configurations. These templates can be version-controlled and deployed automatically.

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15. Explain the purpose of AWS CodeDeploy.

Answer:

AWS CodeDeploy is a deployment service that automates application deployments to various compute services like EC2 instances, Lambda functions, and ECS clusters. It enables reliable, rapid deployments.

Official Reference


16. How do you configure auto-scaling for an Amazon EC2 fleet?

Answer:

  1. Create an Auto Scaling Group (ASG) specifying the desired number of instances.
  2. Define scaling policies based on metrics like CPU usage or network traffic.
  3. Set up CloudWatch alarms to trigger scaling actions.

Official Reference


17. What is AWS Systems Manager (SSM), and how does it help in managing EC2 instances?

Answer:

AWS Systems Manager provides a unified user interface to view and control your AWS infrastructure. It helps in automating administrative tasks, patch management, and configuration management for EC2 instances.

Official Reference


18. How do you enable cross-region replication for an S3 bucket?

Answer:

  1. Navigate to the S3 dashboard in the AWS Console.
  2. Select the source bucket and go to the “Management” tab.
  3. Configure cross-region replication and select the destination bucket.

Official Reference


19. What is AWS Elastic Container Service (ECS), and how does it simplify containerized application deployment?

Answer:

AWS ECS is a fully managed container orchestration service that simplifies the deployment, management, and scaling of containerized applications. It integrates with other AWS services for seamless operation.

Official Reference


20. How do you set up a VPC peering connection in AWS?

Answer:

  1. Navigate to the VPC dashboard in the AWS Console.
  2. Select “Peering Connections” and click “Create Peering Connection.”
  3. Specify the peer VPC ID and request the connection.

Official Reference


21. What is AWS CloudFront, and how does it improve content delivery?

Answer:

AWS CloudFront is a Content Delivery Network (CDN) service that speeds up the delivery of static and dynamic web content. It caches content at edge locations globally, reducing latency for end-users.

Official Reference


22. How do you implement Blue/Green deployments on AWS?

Answer:

  1. Set up two identical environments (Blue and Green).
  2. Route traffic to the Blue environment.
  3. Deploy changes to the Green environment and test.
  4. Update the routing rules to direct traffic to the Green environment.

Official Reference


23. What is AWS KMS, and how does it help in securing data?

Answer:

AWS Key Management Service (KMS) is a managed encryption service. It allows you to create and manage cryptographic keys, control usage, and encrypt data in your applications.

Official Reference


24. How do you create a simple AWS Lambda function using the AWS Management Console?

Answer:

  1. Navigate to the Lambda dashboard in the AWS Console.
  2. Click “Create function” and choose “Author from scratch.”
  3. Configure function details, add code, and set up triggers.

Official Reference


25. Explain the purpose of Amazon ECS Fargate.

Answer:

Amazon ECS Fargate is a serverless compute engine for containers. It removes the need to manage the underlying infrastructure, allowing you to focus solely on deploying and running containers.

Official Reference


26. How do you set up a CI/CD pipeline using AWS CodePipeline and AWS CodeBuild?

Answer:

  1. Create a CodePipeline in the AWS Console.
  2. Define source (e.g., GitHub), build (AWS CodeBuild), and deployment stages.
  3. Configure triggers and start the pipeline.

Official Reference


27. What is AWS Elasticache, and how does it improve application performance?

Answer:

AWS Elasticache is a fully managed in-memory cache service. It helps improve application performance by reducing the load on backend databases and providing low-latency access to frequently accessed data.

Official Reference


28. How do you enable versioning for an S3 bucket?

Answer:

  1. Navigate to the S3 dashboard in the AWS Console.
  2. Select the target bucket and go to the “Properties” tab.
  3. Enable versioning in the bucket settings.

Official Reference


29. What is AWS CloudFormation Change Sets, and how do they help in managing infrastructure changes?

Answer:

AWS CloudFormation Change Sets allow you to preview and review changes to your AWS resources before applying them. It helps in understanding the impact of changes and ensures safer infrastructure updates.

Official Reference


30. Explain the purpose of AWS Elastic Beanstalk environment tiers.

Answer:

AWS Elastic Beanstalk supports two environment tiers: Web Server and Worker. The Web Server tier is for web applications, while the Worker tier is for background processing tasks. It allows for specialized scaling and resource allocation.

Official Reference


31. How do you configure auto-scaling policies for an Amazon RDS instance?

Answer:

  1. Navigate to the RDS dashboard in the AWS Console.
  2. Select your DB instance and go to the “Auto Scaling” section.
  3. Configure auto-scaling policies based on metrics like CPU utilization or connections.

Official Reference


32. What is AWS Elastic File System (EFS), and how does it simplify file storage for EC2 instances?

Answer:

AWS Elastic File System (EFS) is a scalable file storage service that can be attached to multiple EC2 instances. It simplifies file storage by providing shared access to files across instances.

Official Reference


33. How do you set up Amazon SNS (Simple Notification Service) for event-driven architecture?

Answer:

  1. Create an SNS topic in the AWS Console.
  2. Define subscribers (e.g., email addresses, Lambda functions).
  3. Configure event sources (e.g., S3 bucket, CloudWatch alarms) to publish to the SNS topic.

Official Reference


34. Explain the purpose of AWS Elastic Load Balancer (ELB) listeners.

Answer:

ELB listeners define how traffic is distributed to target instances. They specify the protocol and port for incoming connections and how ELB routes those connections to instances based on rules.

Official Reference


35. How do you create a custom Amazon Machine Image (AMI) for EC2 instances?

Answer:

  1. Launch an EC2 instance from an existing AMI.
  2. Customize the instance (e.g., install software, configure settings).
  3. Create an image (AMI) from the customized instance.

Official Reference


36. What is AWS Cloud9, and how does it facilitate collaborative coding?

Answer:

AWS Cloud9 is an integrated development environment (IDE) in the cloud. It enables collaborative coding by allowing multiple users to work on the same code in real time, making it suitable for pair programming and team projects.

Official Reference


37. How do you implement continuous deployment using AWS CodePipeline and AWS Elastic Beanstalk?

Answer:

  1. Set up a CodePipeline with a source (e.g., GitHub), build (AWS CodeBuild), and deploy (Elastic Beanstalk) stages.
  2. Configure triggers to automatically start the pipeline on code changes.

Official Reference


38. What is AWS Lambda Layers, and how do they enhance code reuse?

Answer:

AWS Lambda Layers are a distribution mechanism for libraries, custom runtimes, and other function dependencies. They allow you to manage your in-development function code independently from unchanging libraries.

Official Reference


39. How do you configure Amazon Route 53 for domain registration and DNS management?

Answer:

  1. Navigate to Route 53 in the AWS Console.
  2. Register a domain or transfer an existing one.
  3. Set up hosted zones and configure DNS records for your domains.

Official Reference


40. Explain the purpose of Amazon VPC (Virtual Private Cloud) Peering.

Answer:

Amazon VPC Peering allows you to connect two VPCs, enabling resources in separate VPCs to communicate as if they were on the same network. It helps to facilitate resource sharing and application integration.

Official Reference


41. How do you automate the deployment of containerized applications using AWS Fargate?

Answer:

  1. Define a task definition in Amazon ECS.
  2. Create a service that uses the Fargate launch type.
  3. Define a load balancer if needed.

Official Reference


42. What is AWS Secrets Manager, and how does it enhance security for sensitive information?

Answer:

AWS Secrets Manager helps you securely store and manage sensitive information such as database credentials and API keys. It provides a central, secure repository for secrets.

Official Reference


43. What is AWS CloudWatch Logs, and how does it assist in monitoring and troubleshooting applications?

Answer:

AWS CloudWatch Logs allows you to monitor, store, and access log files from EC2 instances, AWS CloudTrail, and other services. It aids in troubleshooting by providing visibility into system and application behavior.

Official Reference


44. How do you implement Blue/Green deployments using AWS Elastic Beanstalk?

Answer:

  1. Set up two Elastic Beanstalk environments (Blue and Green).
  2. Route traffic to the Blue environment.
  3. Deploy changes to the Green environment and test.
  4. Update the routing rules to direct traffic to the Green environment.

Official Reference


45. What is AWS CodeStar, and how does it streamline application development?

Answer:

AWS CodeStar is a fully integrated development environment (IDE) designed to accelerate application development. It provides a unified user interface for building, deploying, and managing applications.

Official Reference


46. How do you create a custom AWS CloudFormation resource?

Answer:

  1. Define a custom resource in the CloudFormation template.
  2. Implement a Lambda function to handle the custom resource logic.
  3. Use the Lambda function ARN in the resource definition.

Official Reference


47. What is AWS Glue, and how does it simplify ETL processes?

Answer:

AWS Glue is a fully managed extract, transform, and load (ETL) service. It automates the process of preparing and loading data for analytics, making it easier to query and analyze large datasets.

Official Reference


48. How do you configure Amazon CloudWatch Alarms for monitoring AWS resources?

Answer:

  1. Navigate to the CloudWatch dashboard in the AWS Console.
  2. Choose “Alarms” and click “Create Alarm.”
  3. Define conditions, thresholds, and actions for the alarm based on metrics.

Official Reference


49. Explain the concept of AWS CodeCommit and its role in source code management.

Answer:

AWS CodeCommit is a fully managed source control service that helps teams host and manage Git repositories. It facilitates collaborative software development and integrates with other AWS services.

Official Reference


50. How do you use AWS OpsWorks for automated application deployment and management?

Answer:

  1. Create an OpsWorks stack and define layers (e.g., app, database).
  2. Specify instances and configure recipes for setup.
  3. Deploy applications and let OpsWorks manage infrastructure.

Official Reference


51. What is AWS Step Functions, and how does it assist in building serverless applications?

Answer:

AWS Step Functions is a serverless orchestration service that helps coordinate multiple AWS services into serverless workflows. It simplifies building and visualizing complex applications.

Official Reference


52. How do you configure AWS CloudTrail for tracking and auditing AWS API calls?

Answer:

  1. Navigate to the CloudTrail dashboard in the AWS Console.
  2. Create a trail and specify the S3 bucket to store logs.
  3. Enable the trail for the desired regions and services.

Official Reference


53. Explain the purpose of AWS Lambda@Edge and its use cases.

Answer:

AWS Lambda@Edge allows you to run Lambda functions in response to CloudFront events at edge locations. It’s used for real-time content transformation, security, and personalization of web applications.

Official Reference


54. What is AWS Identity and Access Management (IAM), and how does it help in managing access to AWS resources?

Answer:

AWS IAM is a web service that helps you securely control access to AWS resources. It allows you to create and manage users, groups, and roles, defining who can do what in your AWS account.

Official Reference


55. How do you enable Multi-Factor Authentication (MFA) for AWS IAM users?

Answer:

  1. Sign in to the AWS Management Console with an IAM user account.
  2. Navigate to the “Security credentials” tab.
  3. Configure MFA for the user account by setting up a virtual or hardware MFA device.

Official Reference


56. What is AWS CloudFormation StackSets, and how does it simplify managing resources across multiple accounts and regions?

Answer:

AWS CloudFormation StackSets allow you to deploy stacks across multiple accounts and regions from a single CloudFormation template. It simplifies resource management and ensures consistency.

Official Reference


57. How do you monitor AWS billing and usage using AWS Cost Explorer?

Answer:

  1. Access AWS Cost Explorer from the AWS Console.
  2. Explore billing and usage data with predefined or custom reports.
  3. Analyze trends and identify cost-saving opportunities.

Official Reference


58. What is AWS CloudFront Lambda@Edge, and how does it enhance content delivery?

Answer:

AWS CloudFront Lambda@Edge allows you to run custom code at edge locations in response to CloudFront events. It enhances content delivery by enabling real-time customization and optimization of web content.

Official Reference


59. How do you use AWS Config for resource inventory and configuration history?

Answer:

  1. Enable AWS Config from the AWS Console.
  2. Define rules to track resource configuration changes.
  3. Access inventory and configuration history through AWS Config.

Official Reference


60. What is AWS DataSync, and how does it simplify data transfer between on-premises and AWS storage?

Answer:

AWS DataSync is a data transfer service that simplifies moving data between on-premises storage and AWS storage services. It accelerates data transfer while ensuring data integrity.

Official Reference


61. What is AWS Systems Manager, and how does it assist in managing EC2 instances?

Answer:

AWS Systems Manager allows you to manage and automate administrative tasks on your EC2 instances. It provides features like Run Command, State Manager, and Automation for streamlined operations.

Official Reference


62. How do you set up AWS CodeBuild for building and testing applications?

Answer:

  1. Create a CodeBuild project in the AWS Console.
  2. Specify source (e.g., GitHub, CodeCommit) and build environment.
  3. Define build specifications and start the build.

Official Reference


63. What is AWS App Runner, and how does it simplify containerized application deployment?

Answer:

AWS App Runner is a fully managed service for building, deploying, and scaling containerized applications. It automates the deployment process, making it easier to get applications up and running.

Official Reference


64. How do you use AWS CloudFormation StackSets for cross-account resource provisioning?

Answer:

  1. Define a CloudFormation template for the desired resources.
  2. Create a StackSet and specify target accounts and regions.
  3. Deploy the StackSet to provision resources across accounts.

Official Reference


65. Explain the purpose of AWS Elastic Container Registry (ECR) and its benefits.

Answer:

AWS Elastic Container Registry is a fully managed container registry service. It allows you to store, manage, and deploy Docker images, streamlining container deployment.

Official Reference


66. How do you implement AWS WAF (Web Application Firewall) for protecting web applications from common threats?

Answer:

  1. Navigate to AWS WAF in the AWS Console.
  2. Create a WebACL and define rules for filtering requests.
  3. Associate the WebACL with your CloudFront distribution or Application Load Balancer.

Official Reference


67. What is AWS App Mesh, and how does it enhance microservices communication?

Answer:

AWS App Mesh is a service mesh that makes it easy to monitor and control microservices running on AWS. It provides observability and traffic management for microservices architectures.

Official Reference


68. How do you configure AWS Auto Scaling for dynamically adjusting the number of EC2 instances?

Answer:

  1. Create an Auto Scaling group in the AWS Console.
  2. Define desired capacity, minimum and maximum instances, and scaling policies based on metrics like CPU utilization.

Official Reference


69. What is AWS CloudHSM, and how does it enhance security for sensitive data?

Answer:

AWS CloudHSM is a hardware security module (HSM) that provides secure key storage and cryptographic operations. It enhances security by protecting sensitive data and encryption keys.

Official Reference


70. How do you implement AWS Step Functions for building serverless workflows?

Answer:

  1. Define states and transitions in a Step Functions state machine.
  2. Use the AWS Step Functions console to create and visualize workflows.
  3. Start and manage executions of the state machine.

Official Reference


71. What is AWS Direct Connect, and how does it provide a dedicated network connection to AWS?

Answer:

AWS Direct Connect establishes a dedicated network connection from your on-premises data center to AWS. It provides more reliable and secure access compared to internet-based connections.

Official Reference


72. How do you use AWS Managed Services for automating routine infrastructure management tasks?

Answer:

AWS Managed Services automates tasks like patch management, backup, and monitoring for your AWS infrastructure. Simply sign up for the service and let AWS manage routine tasks.

Official Reference


73. What is AWS Organizations, and how does it assist in managing multiple AWS accounts?

Answer:

AWS Organizations allows you to consolidate multiple AWS accounts into an organization. It helps in centralizing billing, setting policies, and managing access across accounts.

Official Reference


74. How do you use AWS Cloud9 for collaborative coding and integrated development?

Answer:

  1. Create an AWS Cloud9 environment in the AWS Console.
  2. Share the environment with team members for real-time collaborative coding and integrated development.

Official Reference


75. What is AWS Snowball, and how does it facilitate large-scale data transfer to AWS?

Answer:

AWS Snowball is a physical device used for transferring large amounts of data into and out of AWS. It accelerates data migration by providing a secure and efficient way to transfer data.

Official Reference


76. How do you implement AWS Elastic Load Balancing (ELB) for distributing incoming traffic across multiple instances?

Answer:

  1. Create a load balancer in the AWS Console.
  2. Define listeners, configure availability zones, and select instances to include in the load balancer.

Official Reference


77. What is AWS Elemental MediaConvert, and how does it simplify video transcoding?

Answer:

AWS Elemental MediaConvert is a file-based video transcoding service. It converts media files into different formats, making it suitable for streaming and playback on various devices.

Official Reference


78. How do you set up AWS Elasticache for caching data to improve application performance?

Answer:

  1. Create an Amazon ElastiCache cluster in the AWS Console.
  2. Configure the cluster settings and select the appropriate caching engine (e.g., Redis, Memcached).

Official Reference


79. What is AWS X-Ray, and how does it assist in analyzing and debugging distributed applications?

Answer:

AWS X-Ray is a service that helps trace requests as they travel through your application. It provides insights into performance and helps in identifying bottlenecks and issues.

Official Reference


80. How do you use AWS Step Functions for building serverless workflows?

Answer:

  1. Define states and transitions in a Step Functions state machine.
  2. Use the AWS Step Functions console to create and visualize workflows.
  3. Start and manage executions of the state machine.

Official Reference


81. What is AWS Direct Connect, and how does it provide a dedicated network connection to AWS?

Answer:

AWS Direct Connect establishes a dedicated network connection from your on-premises data center to AWS. It provides more reliable and secure access compared to internet-based connections.

Official Reference


82. How do you use AWS Managed Services for automating routine infrastructure management tasks?

Answer:

AWS Managed Services automates tasks like patch management, backup, and monitoring for your AWS infrastructure. Simply sign up for the service and let AWS manage routine tasks.

Official Reference


83. What is AWS Organizations, and how does it assist in managing multiple AWS accounts?

Answer:

AWS Organizations allows you to consolidate multiple AWS accounts into an organization. It helps in centralizing billing, setting policies, and managing access across accounts.

Official Reference


84. How do you use AWS Cloud9 for collaborative coding and integrated development?

Answer:

  1. Create an AWS Cloud9 environment in the AWS Console.
  2. Share the environment with team members for real-time collaborative coding and integrated development.

Official Reference


85. What is AWS Snowball, and how does it facilitate large-scale data transfer to AWS?

Answer:

AWS Snowball is a physical device used for transferring large amounts of data into and out of AWS. It accelerates data migration by providing a secure and efficient way to transfer data.

Official Reference


86. How do you implement AWS Elastic Load Balancing (ELB) for distributing incoming traffic across multiple instances?

Answer:

  1. Create a load balancer in the AWS Console.
  2. Define listeners, configure availability zones, and select instances to include in the load balancer.

Official Reference


87. What is AWS Elemental MediaConvert, and how does it simplify video transcoding?

Answer:

AWS Elemental MediaConvert is a file-based video transcoding service. It converts media files into different formats, making it suitable for streaming and playback on various devices.

Official Reference


88. How do you set up AWS Elasticache for caching data to improve application performance?

Answer:

  1. Create an Amazon ElastiCache cluster in the AWS Console.
  2. Configure the cluster settings and select the appropriate caching engine (e.g., Redis, Memcached).

Official Reference


89. What is AWS X-Ray, and how does it assist in analyzing and debugging distributed applications?

Answer:

AWS X-Ray is a service that helps trace requests as they travel through your application. It provides insights into performance and helps in identifying bottlenecks and issues.

Official Reference


90. What is AWS Elastic Beanstalk, and how does it simplify application deployment?

Answer:

AWS Elastic Beanstalk is a fully managed service that makes it easy to deploy and run applications. It handles the underlying infrastructure, allowing developers to focus on writing code.

Official Reference


91. How do you use AWS CodeStar for building, testing, and deploying applications?

Answer:

  1. Create a project in AWS CodeStar, selecting the appropriate development stack.
  2. Connect your source code repository (e.g., GitHub, CodeCommit).
  3. CodeStar automatically sets up a pipeline for building, testing, and deploying your application.

Official Reference


92. What is AWS KMS (Key Management Service), and how does it help in managing encryption keys?

Answer:

AWS Key Management Service is a fully managed encryption service. It allows you to create and control encryption keys used to encrypt your data.

Official Reference


93. How do you use AWS CodeDeploy for automating application deployments?

Answer:

  1. Define an application and deployment group in AWS CodeDeploy.
  2. Connect your source code repository and specify deployment settings.
  3. CodeDeploy automates the deployment process based on your defined criteria.

Official Reference


94. What is AWS Fargate, and how does it simplify running containers?

Answer:

AWS Fargate is a serverless compute engine for running containers. It removes the need to manage the underlying infrastructure, allowing you to focus on building applications.

Official Reference


95. How do you set up AWS CloudTrail for monitoring API activity in your AWS account?

Answer:

  1. Enable AWS CloudTrail in the AWS Console.
  2. Define a trail to capture API activity and specify a storage location.
  3. Access CloudTrail logs for detailed API call history.

Official Reference


96. What is AWS Lambda, and how does it enable serverless computing?

Answer:

AWS Lambda is a serverless computing service that allows you to run code in response to events. It automatically scales and manages the underlying infrastructure.

Official Reference


97. How do you use AWS OpsWorks for automating the deployment of applications?

Answer:

  1. Define stacks, layers, and instances in AWS OpsWorks.
  2. Upload and configure your application code.
  3. OpsWorks automates the deployment and management of your application.

Official Reference


98. What is AWS EventBridge, and how does it facilitate event-driven architecture?

Answer:

AWS EventBridge is a serverless event bus that makes it easy to connect applications together using data from your own applications, SaaS, and AWS services.

Official Reference


99. How do you use AWS AppConfig for managing application configurations?

Answer:

  1. Define configurations in AWS AppConfig.
  2. Create deployment strategies to target specific environments.
  3. AppConfig ensures that applications have access to the correct configurations.

Official Reference


100. What is AWS Cloud9, and how does it enhance the development process?

Answer:

AWS Cloud9 is a cloud-based integrated development environment (IDE) that allows you to write, run, and debug code from a web browser. It provides a collaborative coding environment.

Official Reference