Top AWS Interview Questions & Answers: Freshers & Experts Edition

Introduction

As we are racing through the digital-first world, cloud computing is now a necessity. With businesses rapidly migrating to the cloud, professionals who master Amazon Web Services (AWS) find themselves at the forefront of innovation and opportunity. Whether you're an aspiring cloud engineer, a seasoned IT professional, or someone looking to upskill, AWS is the gold standard in cloud computing. It empowers every size of organisation- from startups to Fortune 500 companies - offering scalability, security, and endless possibilities. However, given the rising demand for AWS experts, the job market is fiercely competitive. If you are aspiring to apply for AWS jobs, you should be acquainted with common AWS web services interview questions. This blog sheds light on popular AWS interview questions and answers to help you prepare for a rewarding career in the AWS cloud.

Top AWS Job Roles

Cloud is ever expanding with new innovations driving the need for proficient professionals. Hence aspiring cloud professionals must boost their skill arsenal to align with the requirements of the following in-demand AWS job roles: So, are you ready to take your cloud aspirations to greater heights? Dive into our next section for the most frequently asked interview questions and answers for AWS for both freshers and advanced levels.

Top AWS Web Services Interview Questions

For Freshers:

1. What is AWS? State the factors behind its growing popularity.
Amazon Web Service (AWS) is a popular cloud computing platform, known for its wide range of offerings. Businesses increasingly rely on AWS for its immense scalability, cost efficiency, and serverless cloud functions.
2. Name 3 basic types of cloud services and AWS products based on them.
This is among the most asked aws basic interview questions. The answer is - Computing, Storage, and Networking. Now, the AWS products built on these services are:
• Computing- EC2, Lambda, Auto-Scaling
• Storage- S3, Glacier, Elastic Block Storage
• Networking- VPC, Amazon CloudFront, Route53
3. What are the key components of AWS?
• EC2- Scalable computing capabilities
• S3- Robust file storage capacity
• RDS- Manages different databases
• IAM- 3-step access securing through authentication and Authorisation
4. What Is An EC2 Instance And How Does It Work?
It stands for Elastic Cloud Compute service- a virtual cloud server. It allows users to run applications, and scale up and down resources according to demand, without owning any physical hardware.
5. What is auto-scaling?
Auto-scaling enables users to launch new instances according to demand. For example- during high traffic, auto-scaling enhances performance, while during low traffic it lowers the number of instances, therefore optimising cost efficiency.
6. What is AWS Free Tier and its services?
AWS Free Tier is a feature for new customers to explore and try AWS services for free with some specified applicable conditions.
7. How data transfer is handled in the cloud?
Again, one of the most frequently-asked aws fresher interview questions.
AWS data transfers happen across regions, within regions, and between services—each with different cost implications. While intra-region transfers (e.g., EC2 to S3) are often free, inter-region transfers typically come with charges.
8. What are the native tools to minimise DDoS attacks?
Some of the native tools to mitigate DDoS attacks in AWS services are:
• AWS Shield
• Amazon Route53
• Amazon CloudFront
• VPC
For Experienced Professionals:
Now, let’s discuss the top aws interview questions for experienced professionals.
1. What is AWS Direct Connect?
AWS Direct Connect establishes a secure direct network between on-premises and AWS data centres. This AWS service is highly preferred and dependable for transferring large data files, sensitive workloads, and scenarios requiring low-latency connections.
2. How to troubleshoot performance issues in the AWS environment?
Effective AWS performance troubleshooting measures include analysing CloudWatch metrics, reviewing logs, and utilising AWS X-Ray for tracing. Understanding the application’s architecture and dependencies is essential for identifying inefficiencies and optimising configurations. AWS provides powerful tools to diagnose and improve performance.
3. How does AWS support DevOps?
Among the AWS Frequently Asked Questions, one common query is how AWS facilitates DevOps. AWS offers services like AWS CodePipeline, AWS CodeBuild, and AWS CodeDeploy to automate CI/CD workflows. AWS enhances collaboration between development and operations teams by integrating with various DevOps tools.
4. What are the benefits of using Amazon CloudFront?
CloudFront, AWS’s CDN service, optimises content delivery by caching data across multiple edge locations worldwide, improving speed, security, and scalability. It also offers DDoS protection and integrates with AWS infrastructure for seamless content distribution.
5. What Is Amazon Kinesis, and what are its uses in real-time data streaming?
It is a fully managed, real-time data streaming service for collecting, processing, and analysing data streams. It is designed for handling continuous data streams arriving from numerous sources.
6. What do you understand by 'changing' in Amazon EC2?
In Amazon EC2, "changing" refers to modifying instance types, security groups, storage, or configurations to optimise performance, cost, or security. This feature helps in tailoring cloud resources according to your evolving needs efficiently.
7. How to handle version control in Amazon S3?
Version control in Amazon S3 starts with navigating to the bucket properties, followed by finding the section ‘Bucket Versioning’. Next, you have to click on ‘Edit’ to enable versioning, and then confirm ‘Save Changes’.
Here is to remember, besides these common interview questions and answers for aws, there will be situational or contextual questions. These questions could be tricky, especially for advanced-level interviews, and need to be handled with experience and wit.

Conclusion

AWS is currently the most in-demand skill and certification in the cloud computing domain. If you have a knack for making it big in the fast-rising cloud computing sector, it's time to gear up your aspirations with DataSpace Academy’s highly acclaimed aws training and certification.