Top 20 AWS Interview Preparation Questions and Answers

A leading cloud platform, AWS is a highly esteemed name in the tech world. Services offered by AWS are numerous and include database, machine learning, compute, DevOps, networking, AI, storage and monitoring, amongst many others.

After having completed your AWS certification and training course, you must now prepare for interviews. However, who says you need to give hundreds of interviews before finally getting a job? We have just the blog you need with top 20 AWS interview preparation questions and answers to help you sail through without any hiccups!

Let’s get started!

Mostly asked questions in AWS interview

Question 1. Tell us about AWS in brief.

Answer. Abbreviation for Amazon Web Services, AWS is an amalgamation of remote computing services, which are also called cloud computing platform. The services it offers are numerous and hence, is becoming a staple across the globe.

Question 2. What are the key components of this platform?

Answer. AWS has quite a few key components including

1. Simple e-mail service
2. Simple storage service (S3)
3. CloudWatch
4. Route 53
5. Elastic block store (EBS)
6. Elastic compute cloud (EC2)
7. Identity & Access management

Question 3. What is S3?

Answer. Standing for Simple Storage Service, this interface can be used for storing and retrieving x amount of data from anywhere and at any time. The payment mode for S3 is typically pay-as-you-go.

Question 4. You have to send a request to Amazon S3, how will you do it?

Answer. Since Amazon S3 is also a REST service, a request can be sent by the aid of the REST API. It can also be done through the AWS SDK wrapper libraries.

Question 5. What do you understand by T2 instances?

Answer. T2 instances are designed in such a manner that they offer moderate baseline performances along with the capability of bursting into higher performance if and when required by the workload.

Question 6. Give me a major point of difference between Amazon EC2 and Amazon S3.

Answer. While Amazon EC2 is a cloud web service which is used to host an application, Amazon S3 is a data storage system which can store any amount of data.

Question 7. Tell us the first 3 steps to Amazon EC2 security best practices.

Answer. The first 3 steps will entail

1. To control the access to the AWS recourse, you need to use AWS access and identity management.
2. Restrict the access and allow only trusted networks and hosts to access the ports.
3. Regular reviewing of the rules in the security groups.

Question 8. Explain AMI.

Answer. Amazon Machine Image or AMI is a template providing all the necessary information to launch an instance. An instance can be launched from various different AMIs.

Question 9. What all does an AMI include?

Answer. An AMI includes a template, a launch permission and a block device.

Question 10. How many buckets can be created by default in AWS?

Answer. In each of your AWS accounts, you can create till 100 buckets by default.

Question 11. Explain key-pairs in AWS.

Answer. Key-pairs in AWS refer to secure login info for the virtual machines. Key-pairs are used to connect to the instances.

Question 12. How many types of instances are there?

Answer. There are 5 types of instances namely computer optimized, storage optimised, accelerated computing, memory optimised and general purpose.

Question 13. AWS allows the creation of how many Elastic IPs?

Answer. A single AWS account allows for the creation of 5 Elastic IP addresses.

Question 14. What do you mean by VPC?

Answer. Virtual Private Cloud, more popularly known as VPC, is a network that allows the customization of network configuration. It is isolated from other networks and gives you the chance to have your internet gateways, security groups, IP address range and subnet.

Question 15. What do you understand by edge locations?

Answer. Edge location is that location where the contents are automatically cached.

Question 16. Explain redshift in simple terms.

Answer. A product of data warehouse, redshift is swift, powerful and fully managed.

Question 17. Is auto-scaling beneficial?

Answer. Yes, auto-scaling has its share of benefits including fault tolerance, effective cost management and higher availability.

Question 18. Explain subnet.

Answer. Subnets are basically huge sections of IP addresses that are segregated into chunks.

Question 19. What is the full form of SQS?

Answer. SQS stands for Simple Queue Service. This distributed queuing service does the job of mediating between two controllers.

Question 20. Elaborate on SimpleDB.

Answer. Indexing both Amazon EC2 and S3 are called SimpleDB. It is a data repository constituted of structure record that promotes data doubts.

Conclusion

Since of field of AWS is huge, the nature of questions that can come your way are huge too. You might not know answers to all of those as well. However, it is essential to keep your poise and take the interview head-on with confidence.

With the right AWS training and certification course, you will gain invaluable knowledge and skills to help you grow.