Top 10 AWS Elastic Beanstalk Interview Questions and Answers

here are the top 10 AWS Elastic Beanstalk interview questions and answers:

1. What is AWS Elastic Beanstalk?

AWS Elastic Beanstalk is a fully managed service that simplifies the process of deploying, managing, and scaling applications in the AWS cloud. It automatically handles the capacity provisioning, load balancing, and application health monitoring, allowing developers to focus on writing code rather than managing infrastructure.

1. What are the key components of Elastic Beanstalk?

The key components of Elastic Beanstalk include:

• Application: A logical collection of components such as environments, versions, and environment configurations.
• Application version: A specific, labeled iteration of your deployable code.
• Environment: A running instance of your application, which contains a collection of AWS resources.

• Environment tier: Determines the type of resources Elastic Beanstalk provisions for your environment, either web server or worker.

• How does Elastic Beanstalk work?

Elastic Beanstalk automates the deployment and management process by creating and configuring the required resources for your application, such as EC2 instances, security groups, and load balancers. You simply upload your application code, and Elastic Beanstalk automatically handles the deployment, scaling, and monitoring of your application.

1. What are the supported platforms for Elastic Beanstalk?

Elastic Beanstalk supports several platforms, including Java, .NET, PHP, Node.js, Python, Ruby, Go, and Docker.

1. How do you deploy an application using Elastic Beanstalk?

To deploy an application using Elastic Beanstalk, follow these steps:

• Create an Elastic Beanstalk application
• Upload your application code as an application version
• Create an environment and choose the platform configuration
• Configure environment settings and resources

• Launch the environment

• How do you configure Elastic Beanstalk environments?

You can configure Elastic Beanstalk environments using either the AWS Management Console, AWS CLI, or SDKs. You can modify environment settings, such as instance type, scaling triggers, and environment variables. You can also customize the underlying AWS resources by providing custom configuration files.

1. How does Elastic Beanstalk handle scaling?

Elastic Beanstalk automatically scales your application by monitoring its performance and adjusting the number of running instances based on the specified scaling triggers. You can configure the scaling triggers using CloudWatch alarms, which monitor metrics such as CPU utilization, request count, and latency.

1. What is the difference between Elastic Beanstalk and CloudFormation?

Elastic Beanstalk is a higher-level service that simplifies the deployment and management of applications, while CloudFormation is a lower-level service that allows you to create and manage AWS resources using templates. Elastic Beanstalk uses CloudFormation templates under the hood to create and manage the resources required for your application.

1. How do you update an Elastic Beanstalk environment?

To update an Elastic Beanstalk environment, you can either upload a new application version or modify the environment settings. Elastic Beanstalk performs rolling updates by default, updating instances one at a time to minimize downtime.

1. What are the pricing components for Elastic Beanstalk?

Elastic Beanstalk itself is free of charge. However, you pay for the underlying AWS resources (such as EC2 instances, EBS volumes, and load balancers) created to run and support your application.

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