Top 75+ AWS Interview Questions and Answers

Are you preparing for the AWS interview? This blog helps you get to know the Top AWS interview questions that are possibly asked in any Amazon Web Services interview.
Before we start AWS interview questions, let's have a look at the few crazy facts about the Amazon Web Services:

AWS is the most significant market player among cloud providers with 47.8% of the IaaS public cloud services market share.
According to ZipRecruiter - The average monthly salary of an AWS Solution Architect is $128,858 /year.
AWS Certification is regarded as one of the highest-paid certification categories in the USA.

1) What is Amazon Web Services?

Ans: AWS stands for Amazon Web Services, which is a cloud computing platform. It is designed in such a way that it provides cloud services in the form of small building blocks, and these blocks help create and deploy various types of applications in the cloud. These sequences of small blocks are integrated to deliver the services in a highly scalable manner.

2) What are the Main Components of AWS?

Ans: The Key Components of AWS are:

Simple Email Service: It allows you to send emails with the help of regular SMTP or by using a restful API call

Route 53: It’s a DNS web service.
Simple Storage Device S3: It is a widely used storage device service in AWS Identity and Access Management
Elastic compute cloud( EC2): It acts as an on-demand computing resource for hosting applications. EC2 is very helpful in time of uncertain workloads.
Elastic Block Store: It allows you to store constant volumes of data which is integrated with EC2 and enable you to data persist.
Cloud watch: It allows you to watch the critical areas of the AWS with which you can even set a reminder for troubleshooting.

3) Explain what S3 is all about?

Ans: S3 is the abbreviation for a simple storage service. It is used for storing and retrieving data at any time and anywhere on the web. S3 makes web-scale computing easier for developers. The payment mode of S3 is available on a pay as you go basis.

4) What is AMI?

Ans: It stands for Amazon Machine Image. The AMI contains essential information required to launch an instance, and it is a copy of AMI running in the cloud. You can download as many examples as possible from multiple AIMs.

5) What is the relationship between an instance and AMI?

Ans: Using a single AMI, you can download as many instances as you can. An instance type is used to define the hardware of the host computer for your situation. Each instance is unique and provides the facilities in computational and storage capabilities. Once you install an instance, it looks similar to a traditional host with which we can interact in the same way we do with a computer.

6) What are the things that are included in the AIM?

Ans: An AIM consists of the things which are mentioned below:

A template for the instance
Launch permissions
A block mapping which decides the volume to be attached when it gets launched.

7) What is an EIP?

Ans: The Elastic IP address (EIP) is a static Ipv4 address offered by AWS to manage dynamic cloud computing services. Connect your AWS account with EIP so that if you want static IPv4 address for your instance, you can be associated with the EIP which enables communication with the internet.

8) What is CloudFront?

Ans: CloudFront is a content delivery network offered by AWS, and it speeds up the distribution of dynamic and static web content such as .css, .js, .html and image files to the users. It delivers the content with low latency and high transfer speed to the users. AWS provides CDN for less price and it suits best for startups.

9) What is VPC?

Ans: Virtual Private Cloud (VPC) allows you to launch AWS resources into the virtual network. It allows users to create and customize network configurations according to users’ business requirements.

10) What is the VPC peering connection?

Ans: VPC peering connection is a networking connection that allows connecting one VPC with the other. It enables the route traffic between two VPCs using IPv6 and Ipv4 addresses. Instances within the VPCs behave like as they are in the same network.

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