20 AWS Elastic Beanstalk Interview Questions and Answers

If you are a web developer who is looking for a new position, you may be asked interview questions about your experience with AWS Elastic Beanstalk. Elastic Beanstalk is a service that helps developers deploy and manage web applications. It is a popular tool among web developers, so it is important to be familiar with the basics of how it works. In this article, we will review some common interview questions about AWS Elastic Beanstalk so that you can be prepared for your next job interview.

AWS Elastic Beanstalk Interview Questions and Answers

Here are 20 commonly asked AWS Elastic Beanstalk interview questions and answers to prepare you for your interview:

1. What is AWS Elastic Beanstalk?

AWS Elastic Beanstalk is a service that makes it easy for you to deploy and manage your web applications in the AWS cloud. Elastic Beanstalk provides a simple, scalable, and reliable platform for deploying and running web applications developed with Java, .NET, PHP, Node.js, Python, Ruby, and Docker on familiar servers such as Apache, Nginx, Passenger, and IIS.

2. Can you explain the main benefit of using AWS Elastic Beanstalk?

The main benefit of using AWS Elastic Beanstalk is that it makes it very easy to deploy and manage your web applications in the cloud. Elastic Beanstalk takes care of all of the heavy lifting for you, so you don’t have to worry about provisioning and configuring servers, setting up load balancers, or anything else. All you need to do is upload your code and Elastic Beanstalk will handle the rest.

3. How does Amazon Web Services Elastic Beanstalk work?

Amazon Web Services Elastic Beanstalk is a cloud-based service that makes it easy to deploy and manage web applications developed with Java, .NET, PHP, Node.js, Python, Ruby, and Docker on familiar servers such as Apache, Nginx, Passenger, and IIS.

4. Can you explain how to configure networking for a single instance application running on AWS Elastic Beanstalk?

To configure networking for a single instance application running on AWS Elastic Beanstalk, you will need to create a new VPC and subnet. You will then need to launch your Elastic Beanstalk instance into this subnet. Finally, you will need to configure your security groups to allow traffic on the appropriate ports.

5. Can you explain how to create and manage environments in AWS Elastic Beanstalk?

To create an environment in AWS Elastic Beanstalk, you first need to create an application. Once you have done that, you can then create an environment inside of that application. To manage your environments, you can use the AWS Elastic Beanstalk console, which will allow you to view all of your environments in one place and perform actions on them such as scaling up or down, changing configurations, and more.

6. Can you explain what an environment tier means in context with AWS Elastic Beanstalk?

An environment tier is a way of categorizing the different types of environments that can be created using AWS Elastic Beanstalk. The three tiers are web server, worker, and custom. A web server environment is typically used to host web applications and is the most common type of environment. A worker environment is used to run background tasks and is typically used in conjunction with a web server environment. A custom environment can be used for anything that doesn’t fit into the other two categories.

7. How can I get started with creating my first AWS Elastic Beanstalk project?

You can find a getting started guide for AWS Elastic Beanstalk here: https://docs.aws.amazon.com/elasticbeanstalk/latest/dg/GettingStarted.html

8. How do I deploy my application to AWS Elastic Beanstalk? What are some common pitfalls that I should avoid?

There are a few different ways to deploy your application to AWS Elastic Beanstalk. The most common way is to use the AWS Elastic Beanstalk console, which will walk you through the process step-by-step. You can also use the AWS Elastic Beanstalk command line interface, or the AWS Elastic Beanstalk API.

Some common pitfalls to avoid include not properly configuring your environment, not testing your application thoroughly before deployment, and not monitoring your application after deployment.

9. What is the best way to test changes before deploying them to production?

The best way to test changes before deploying them to production is to use a staging environment. This will allow you to test your changes in a production-like environment before making them live. This way, you can be sure that your changes will not cause any unexpected problems in production.

10. How can I install new software packages on my instances running on AWS Elastic Beanstalk?

You can install new software packages on your instances running on AWS Elastic Beanstalk by using the AWS Elastic Beanstalk console, the AWS Elastic Beanstalk command line interface (CLI), or the AWS Elastic Beanstalk API.

11. Can multiple users use AWS Elastic Beanstalk to collaborate on developing applications together? If yes, then how?

Yes, multiple users can use AWS Elastic Beanstalk to collaborate on developing applications together. This can be done by creating a shared AWS account and then giving each user access to the account. Once each user has access to the account, they can then create their own Elastic Beanstalk applications and share them with the other users.

12. Is it possible to monitor the health of my application when deployed on AWS Elastic Beanstalk? If yes, then how?

Yes, it is possible to monitor the health of your application when deployed on AWS Elastic Beanstalk. You can do this by setting up Amazon CloudWatch alarms to send you notifications when your application’s health status changes.

13. What’s the difference between the .ebextensions folder and appspec.yml file? Which one would you recommend in certain situations?

The .ebextensions folder is used to store configuration files that will be applied to your Elastic Beanstalk environment. These files can be used to customize the environment to your needs. The appspec.yml file is used to specify how your application should be deployed to Elastic Beanstalk. This file includes information on the application’s dependencies and how the application should be started. In general, you should use the .ebextensions folder for configuration files and the appspec.yml file for deployment instructions.

14. What are some examples of real-world services already built using AWS Elastic Beanstalk?

Some examples of real-world services already built using AWS Elastic Beanstalk include the social media platform BackType and the video streaming service Vimeo.

15. Can you give me some examples of popular languages supported by AWS Elastic Beanstalk?

AWS Elastic Beanstalk supports a variety of popular programming languages, including Java, .NET, PHP, Node.js, Python, and Ruby.

16. Does AWS provide any free tiers or trial periods for testing out AWS Elastic Beanstalk? If yes, then which ones?

Yes, AWS does provide free tiers and trial periods for testing out AWS Elastic Beanstalk. The free tier is available for 12 months and provides you with 1 GB of storage and 10 GB of bandwidth per month. The trial period is available for 30 days and provides you with 2 GB of storage and 20 GB of bandwidth per month.

17. How does AWS Elastic Beanstalk compare to other cloud platforms like Heroku, Google Cloud Platform, Microsoft Azure, etc?

AWS Elastic Beanstalk is a Platform as a Service (PaaS) that allows developers to quickly deploy and manage web applications developed with Java, .NET, PHP, Node.js, Python, Ruby, and Docker on familiar servers such as Apache, Nginx, Passenger, and IIS. Elastic Beanstalk automatically handles the details of capacity provisioning, load balancing, scaling, and application health monitoring.

Heroku is a cloud platform as a service (PaaS) that supports several programming languages. Heroku also supports the deployment of web applications.

Google Cloud Platform is a cloud computing platform that offers a set of tools and services for developers, including App Engine, Compute Engine, Cloud Storage, Cloud SQL, and more.

Microsoft Azure is a cloud computing platform that offers a variety of services, including App Service, Virtual Machines, Storage, and more.

18. What is the pricing model used by AWS Elastic Beanstalk?

The pricing model for AWS Elastic Beanstalk is based on the resources used by your application. This includes the amount of storage, the number of EC2 instances, and the amount of data transfer. You will pay for these resources on an hourly basis.

19. How can I find more information about getting started with AWS Elastic Beanstalk?

You can find more information about getting started with AWS Elastic Beanstalk on the AWS website. There is a section dedicated to getting started that includes tutorials and documentation.

20. How do I update my existing application when deployed on AWS Elastic Beanstalk?

You can update your existing application by using the AWS Elastic Beanstalk console, the AWS Elastic Beanstalk command line interface (CLI), or the AWS Elastic Beanstalk API. To update your application, you will first need to create a new application version, which can be done by uploading a new ZIP file or WAR file to AWS Elastic Beanstalk. Once you have created a new application version, you can then deploy it to your AWS Elastic Beanstalk environment.