AWS Elastic Beanstalk Interview Preparation: Top 10 Questions

I can provide you with the top 10 interview questions and answers specifically related to AWS Elastic Beanstalk. Here they are:

Question 1: What is AWS Elastic Beanstalk? Answer: AWS Elastic Beanstalk is a fully managed service that makes it easy to deploy, run, and scale applications in multiple programming languages. It abstracts away the underlying infrastructure, allowing developers to focus on writing code rather than managing servers.

Question 2: What programming languages and platforms are supported by Elastic Beanstalk? Answer: Elastic Beanstalk supports a wide range of programming languages and platforms including Java, .NET, Node.js, Python, Ruby, PHP, Go, and Docker. It provides platform-specific runtimes and configurations for each language.

Question 3: How does Elastic Beanstalk handle application deployment and scaling? Answer: Elastic Beanstalk automatically handles application deployment by taking the application source code and deploying it onto multiple instances. It also provides automatic scaling capabilities based on predefined triggers like CPU utilization, network traffic, or custom metrics.

Question 4: What is the difference between AWS Elastic Beanstalk and Amazon EC2? Answer: Elastic Beanstalk is a platform-as-a-service (PaaS) offering, while Amazon EC2 is an infrastructure-as-a-service (IaaS) offering. Elastic Beanstalk abstracts away the underlying infrastructure and provides a managed environment for application deployment, whereas EC2 gives you more control over the infrastructure and requires more manual configuration.

Question 5: How can you customize the environment in Elastic Beanstalk? Answer: Elastic Beanstalk allows customization through configuration files called ".ebextensions". These files can be used to define environment variables, set up databases, configure load balancers, and more. Custom platform hooks can also be used to perform additional setup steps during application deployment.

Question 6: How can you monitor and troubleshoot applications in Elastic Beanstalk? Answer: Elastic Beanstalk integrates with AWS CloudWatch, which allows you to monitor application health, collect logs, and set up alarms for specific metrics. You can also SSH into individual instances for troubleshooting purposes or use log streaming services like Amazon CloudWatch Logs.

Question 7: How can you update the application running on Elastic Beanstalk? Answer: Elastic Beanstalk supports zero-downtime updates. You can deploy updates to your application by uploading a new version of your code or by using version control systems like Git. Elastic Beanstalk automatically performs a rolling update across instances, ensuring high availability.

Question 8: How does Elastic Beanstalk handle database connections? Answer: Elastic Beanstalk provides integration with various managed database services in AWS, such as Amazon RDS for relational databases or Amazon ElastiCache for caching. You can configure your application to connect to these database services using environment variables or configuration files.

Question 9: Can you deploy multiple environments for the same application in Elastic Beanstalk? Answer: Yes, Elastic Beanstalk supports creating multiple environments for the same application. This allows you to have separate environments for development, testing, and production. Each environment can have different configurations and settings.

Question 10: How does Elastic Beanstalk handle security and access control? Answer: Elastic Beanstalk integrates with AWS Identity and Access Management (IAM) to manage access control. You can define IAM roles and policies to control the permissions of users and services interacting with your Elastic Beanstalk environment. Elastic Beanstalk also supports integration with other AWS security services like AWS Certificate Manager for SSL/TLS certificates.

These questions and answers should help you prepare for an interview focused on AWS Elastic Beanstalk. Remember to expand on each answer based on your personal experience and provide specific examples wherever possible. Good luck!

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