Free AWS Interview Questions And Answers for Freshers

These are the Top Free AWS Interview Questions And Answers for Freshers 2022. It is also applicable to people with 2 years experience or more. These solution architect questions and answers are can also work for advanced devOps and Java Devlopers. Most of these answers come from Glassdoor website in PDF format.

So, are you preparing for the AWS interview to get a job at a workplace? If Yes, then this article is specifically for you! That is to say that this website helps you to be aware of the random Top AWS Interview Questions that are usually asked in any Amazon Web Services interview tests.

Currently, we have provided this blog with the latest 2021/2022 AWS Interview Questions and Answers for freshers and experienced professionals. Believe me when I tell you that, by simply going through these simple interview questions, you will be able to pass the AWS interview successfully.

Now, before we begin with the AWS interview questions, let’s take a quick look at a few important facts about the Amazon Web Services:

  • According to the IaaS public cloud services market share, AWS is the most significant market player among cloud providers with 47.8%.
  • The average monthly salary of an AWS Solution Architect is USD $130,000 /year. (Details is from ZipRecruiter).
  • It is known that AWS Certification is among the highest-paid certification categories in the USA. See details here.

From the points seen above, it is worthy to note that the IT professionals who are capable of handling AWS applications are having high demand and employment opportunities in the market. Their market share is very high.

Top AWS Interview Questions 

  1. Does Amazon support region base services on all services? 
  2. What is EBS in AWS?
  3. How many AWS services are there in 2021?
  4. Which AWS region is the cheapest?
  5. What is the maximum size of an S3 bucket?
  6. What are the most popular AWS services?
  7. Is AWS RDS free?
  8. What is the difference between EBS and S3?
  9. Is Amazon S3 a global service?
  10. What are the benefits of AWS?

We have categorised AWS Interview Questions – 2021 (Updated) into 4 levels they are: Basic, Intermediate, Advanced Masterclass and Frequently asked questions.

Basic Amazon Web Services Interview Questions

1. What are Amazon Web Services?

First things first, AWS is an acronym which stands for Amazon Web Services. The AWS is a cloud computing platform. Generally, it is developed in such a way that it provides cloud services in the form of small building blocks. In addition, these building blocks help to create and deploy various types of applications in the cloud. Lastly, these sequences of small blocks are integrated to deliver the services in a highly measurable manner.

2. Do You Know the Main Components of AWS?

What are the components of AWS? Basically, the Key Components of AWS are as follows:  

  • Simple Email Service: It simply allows users to easily send emails with the help of regular SMTP. You can also use a restful API call.
  • Route 53: It’s just a DNS web service, nothing else.
  • Simple Storage Device S3: This is a widely used storage device service in Amazon Web Service Identity and Access Management.
  • Elastic compute cloud( EC2): The EC2 acts as an on-demand computing resource for hosting online applications. As a matter of fact, it is very helpful in times of uncertain workloads of an admin. 
  • Elastic Block Store: The EBS allows you to store regular volumes of data which is integrated with Elastic compute cloud (EC2) and enables you to data persist. 
  • Cloud watch: It allows you to watch the critical areas of the AWS. With this, you can even set a reminder for troubleshooting. 
Related Blog: AWS Big Data Project

3. Can You Explain what S3 is all about?

S3 in Amazon Web Service is the abbreviation for a simple storage service. It is basically used for storing data. You can also use it to retrieve stored data at any time and anywhere on the internet. The AWS S3 makes web-scale computing easier for admins and developers. The service has a payment mode of S3 is available on a pay-as-you-go basis.

4. What is AMI (Amazon Machine Image)?

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

5. What is the relationship between an Instance and AMI? 

Study this part carefully. Because, using a single AMI, you can easily download as many instances as you can. On the other hand, an instance type is used to define the hardware of the host computer for your situation. Therefore, every single instance is unique and provides the facilities in computational and storage capabilities. Notice that, immediately you install an instance, it looks similar to a traditional host with which we can interact in the same way we do with a PC.

6. What are the things that are included in the AMI?  

An AMI consists of the things which are mentioned below:

  • A template for the instance 
  • Launch permissions 
  • A block mapping that decides the volume to be attached when it gets launched.
Want to become a Certified AWS Solution Architect? Visit here to AWS Courses and Training

7. What is an EIP (Elastic IP address)?

Basically, the Elastic IP address (EIP) is a static Ipv4 address offered by Amazon Web Service to manage dynamic cloud computing services. You can Connect your AWS account with EIP. Why? Because, if you want a static IPv4 address for your instance, you can be associate it with the EIP. Therefore, it enables communication with the internet. 

8. What is CloudFront?

First of all, Amazon CloudFront is a global content delivery network (CDN) service built for high-speed, low-latency performance, security, and developer ease-of-use. Simplifying this explanation; CloudFront is a content delivery network offered by AWS. Secondly, it speeds up the distribution of dynamic and static web content such as .css, .js, .html, and image files to the users. Basically, it simply delivers the content with low latency and high transfer speed to the users. More importantly, AWS provides CDN for smaller price and it suits the best startups.

9. What is VPC (Virtual Private Cloud)?

virtual private cloud (VPC) is a secure, isolated private cloud hosted within a public cloud. Essentially, a VPC provisions logically isolated sections of a public cloud in order to provide a virtual private environment. VPC allows you to launch AWS resources into the virtual network. Lastly, it allows you to create and customize network configurations according to users’ business requirements.

10. What is the VPC peering connection?

VPC peering connection
VPC peering connection

According to, A VPC peering connection is a networking connection between two VPCs that enables you to route traffic between them using private IP addresses. In a short explanation, VPC peering allows you to deploy cloud resources in a virtual network that you have defined. 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.

11. What is the procedure to send a request to Amazon S3?

S3 in Amazon is a RESt service, and you can send requests by using the AWS SDK or REST API wrapper libraries. Basically, you can send requests to Amazon S3 using the REST API or the AWS SDK wrapper libraries that wrap the underlying Amazon S3 REST API, simplifying your programming tasks. Every interaction with Amazon S3 is either authenticated or anonymous.

See Sample Code and Libraries

12. What are NAT gateways?

Network Address Translation (NAT) is a way to map multiple local private addresses to a public one before transferring the information. Organizations that want multiple devices to employ a single IP address use NAT, as do most home routers. It allows instances to connect in a private subnet with the internet and other AWS services. NAT prevents the internet to have an initial connection with the instances.  

13. What is SNS?

A social networking service (SNS) is an online vehicle for creating relationships with other people who share an interest, background, or real relationship. Amazon Simple Notification Service (SNS) is a web service provided by AWS. Basically, it manages and delivers messages or notifications to users and clients from any cloud platform. In SNS, there are two types of clients: subscribers and publishers. From one angle, Publishers produce and send a message to the subscriber instance through the communication channels. On the other hand, subscribers receive notification from the publisher over one of the supported protocols such as Amazon SQS, HTTP, and Lambda, etc. Amazon SNS automatically triggers the service and sends an email with a message that “ your EC2 instance is growing” when you are using Auto Scaling.

14. What is SQS?

Amazon SQS stands for Simple Queue Service, and it manages the message queue service. Using this service, you can move the data or message from one application to another even though it is not in the running or active state. SQS sends messages between multiple services, including S3, DynamoDB, EC2 Instance, and also it uses the Java message queue service to deliver the information. The maximum visibility timeout of a message is 12 hours in the SQS queue.

Related Article: AWS Cloud Platform Services

15. What are the types of queues in SQS?

There are two types of message queues in SQS. They are as follows:

Standard Queues: It is a default queue type. It provides an unlimited number of transactions per second and at least one message delivery option. Standard queues offer maximum throughput, best-effort ordering, and at-least-once delivery.

FIFO Queues: FIFO queues are designed to ensure that the order of messages is received, processed and sent is strictly preserved as in the exact order that they sent.

16. Explain the types of instances available? 

Below stated are the available instances:

  • General-purpose 
  • Storage optimized 
  • Accelerated computing
  • Computer-optimized 
  • Memory-optimized

Amazon EC2 Instance Types

  • Mac.
  • T4g.
  • T3.
  • T3a.
  • T2.
  • M6g.
  • M6i.
  • M5.

17. Explain about DynamoDB? 

If you want to have a faster and flexible NoSQL database, then the right thing available is DynamoDB, which is a flexible and efficient database model available in Amazon web services. Meanwhile, you can Experience the Ease, Security & Reliability Of Building a DynamoDB Database With AWS. Also, you can Deploy Multiple Database Editions With Cost-Efficient & Resizable Hardware Capacity.

In a full definition, DynamoDB is an Amazon Web Services database system that supports data structures and key-valued cloud services. It allows users the benefit of auto-scaling, in-memory caching, backup and restore options for all their internet-scale applications using DynamoDB. Source: (

18. What is Glacier?

Amazon Glacier is one of the most important services provided by AWS. The Glacier is an online web storage service that provides you with low-cost and effective storage with security features for archival and data backup. With Glacier, you can store the information effectively for months, years, or even decades.

19. What is Redshift? 

Redshift is a big data product used as a data warehouse in the cloud. It is the fast, reliable, and powerful product of a big data warehouse. Furthermore, Redshift is a powerful GPU-accelerated renderer, built to meet the specific demands of contemporary high-end production rendering.

What redshift means? The Image result for Redshift ‘Red shift’ is a key concept for astronomers. Literally, the term can be understood literally – the wavelength of the light is stretched. Therefore, the light is seen as ‘shifted’ towards the red part of the spectrum. However, something similar happens to sound waves when a source of sound moves relative to an observer.

20. What are the Types of AMI Provided by AWS?

Written below listed are the two kinds of AMIs provided by Amazon Web Service (AWS): 

  • EBS backed 
  • Instance store backed

Amazon Linux AMI Instance Type Matrix

Instance FamilyHVM EBS-Backed 64-bit

Amazon Machine Images (AMI) – You can search for AMIs provided by AWS or AMIs provided by the community. For more information, see AMI types and Find a Linux AMI.

Up till now, you have seen basic interview questions. Now, we will move to the Intermediate Questions in our next post.

AWS Interview Questions for Intermediate Level (2years Experience Job).

Also, we have the AWS Interview Questions for Advanced Level for Experts.

Frequently Asked AWS Interview Questions – PDF free download

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