Interview Questions on AWS : The Ultimate Beginner’s Guide to Mastering AWS Interview Questions

As cloud computing grows in popularity, Amazon Web Services (AWS) has emerged as a market leader.

Understanding AWS is essential if you want to break into or enhance your career in cloud computing. Moreover, with the growing demand for AWS workers, it's no surprise that AWS interviews are becoming increasingly popular. 

Why are AWS jobs highly seeked by IT professionals? 

  • Increasing need

    As more businesses move their infrastructure and applications to the cloud, demand for AWS specialists is rising quickly. According to LinkedIn, AWS-related job posts are expected to increase by 90%.

  • High-paying salaries

    AWS experts often make high incomes, with the median salary for an AWS Solutions Architect in the United States being over $130,000 per year. Wages differ according to experience and geography.

  • Many career positions 

    Amazon offers a variety of positions, including those for cloud architects, developers, engineers, and administrators, among others. This implies that IT professionals with a variety of backgrounds and skill sets can find a work that matches their qualifications. 

  • Rapidly evolving technology

    AWS is constantly evolving, with new services and features being added regularly. This means that AWS professionals have the opportunity to work with cutting-edge technology and continually develop their skills.

What is the importance of AWS in the cloud computing industry?

Amazon Web Services (AWS) is a significant cloud computing provider that provides a wide range of data storage, processing, and analysis services to businesses and individuals. 

Several factors contribute to its significance in the cloud computing industry:

  • Innovation

    AWS is constantly innovating and adding new services and features to its platform. This allows businesses to stay up to date with the latest technologies and trends in the industry, and stay ahead of the competition.

  • Cost-effective

    Since it eliminates the need for businesses to invest in expensive hardware and infrastructure, Amazon is a cost-effective alternative for them. Businesses just pay for what they use with AWS, making it a more cost-effective solution for smaller firms.

  • Services offered in a wide range 

    AWS provides a vast range of services, including computing, analytics, machine learning, storage, and more. This enables organizations to select the services that best match their requirements and quickly scale up or down as needed.

  • Security

    With complex security features and compliance certifications, AWS provides a high level of protection for enterprises. This means that organizations may safely store and analyze their data while remaining at ease.

What are the different job opportunities for AWS certified professionals? 

There are numerous job opportunities available for AWS certified professionals across a range of roles, including:

  • AWS Cloud Architect

    An AWS Cloud Architect designs and implements complex cloud solutions using AWS services, ensuring that the solutions meet the business requirements while adhering to AWS best practices and standards.

  • AWS Cloud Developer

    An AWS Cloud Developer develops and deploys cloud-based applications and services using AWS tools and services.

  • AWS Cloud Operations Engineer

    An AWS Cloud Operations Engineer manages and maintains cloud infrastructure, ensuring that it is highly available, secure, and scalable.

  • AWS DevOps Engineer

    An AWS DevOps Engineer uses AWS tools and services to implement DevOps processes, such as continuous integration and continuous deployment (CI/CD), to streamline the software development lifecycle.

  • AWS Big Data Architect

    An AWS Big Data Architect designs and implements big data solutions using AWS services, such as Amazon EMR and Amazon Redshift, to process and analyze large volumes of data.

  • AWS Security Specialist

    An AWS Security Specialist is responsible for implementing security controls and ensuring compliance with security standards and regulations across AWS infrastructure.

What is the interview process of AWS jobs and what are their prerequisites?

The interview process for AWS jobs can vary depending on the specific role and company, but there are some common steps that are often involved. Here is a general overview of the AWS job interview process and prerequisites:

  • Application and Resume Screening

    An application and resume screening is frequently the first step in the AWS job interview process. The employer will check your application and résumé to ensure that you meet the minimum qualifications for the position.

  • Technical Assessment

    The following step is frequently a technical assessment, which may include a coding challenge, technical test, or another kind of technical competence evaluation.

  • Phone Interview

    If you pass the technical assessment, you may be invited to a phone interview. This is often a brief interview in which the interviewer will inquire about your experience, talents, and why you are interested in the position.

  • In-Person or Virtual Interview

    The next step is frequently an in-person or virtual interview, which may include one or more rounds of interviews with various team members.

    Your technical talents, experience, problem-solving ability, and cultural fit may be emphasized during these interviews.

  • Job Offer

    If you pass all rounds of interviews, you may be offered the position. At this point, you will negotiate the job terms, such as salary, benefits, and start date.

  • Prerequisites

    As for prerequisites, the requirements for AWS jobs can vary depending on the specific role and company. However, common prerequisites for AWS jobs include: 

  • AWS Certification 

    Having an AWS certification, such as AWS Certified Solutions Architect, AWS Certified Developer, or AWS Certified DevOps Engineer, can help demonstrate your knowledge and skills in AWS.

  • Technical Skills

    Having a strong foundation in programming, database management, and networking is often required for AWS jobs. 

  • Experience

    Depending on the role, companies may require previous experience working with AWS or similar cloud platforms. 

  • Soft Skills 

    In addition to technical skills, AWS jobs often require strong communication, collaboration, and problem-solving skills.

What are the different types of AWS interview questions?

1. Basic AWS Interview Questions 

  1. 1

    What is AWS?

    AWS is an abbreviation for Amazon Web Services, a cloud computing platform provided by Amazon.

  2. 2

    What are the advantages of using AWS?

    Scalability, flexibility, cost-effectiveness, security, and reliability are all advantages of using AWS.

  3. 3

    What is an EC2 instance?

    Elastic Compute Cloud (EC2) is an abbreviation for a virtual server in the cloud that can be used to run applications.

  4. 4

    What is S3 in AWS?

    S3 is an abbreviation for Simple Storage Service, a scalable cloud storage solution for objects and files.

  5. 5

    What is AWS CloudFormation?

    AWS CloudFormation is a service that allows you to create and manage AWS infrastructure as code.

  6. 6

    What is an AWS Lambda function?

    AWS Lambda is a computational service that allows you to run code without having to create or manage servers.

  7. 7

    What is Amazon RDS?

    Amazon RDS, which stands for Relational Database Service, is a cloud-based database service that supports a variety of database engines.

  8. 8

    What is Amazon CloudFront?

    Amazon CloudFront is a content delivery network that increases the speed with which static and dynamic web content is delivered.

  9. 9

    What is the AWS IAM?

    AWS IAM is an acronym that stands for Identity and Access Management. It is a service that allows you to manage access to Amazon services.

  10. 10

    What are some best practices for securing your infrastructure?

    Best practices include using IAM roles, implementing network security groups, encrypting data, and regularly monitoring and auditing your infrastructure.

2. Intermediate AWS Interview Questions

  1. 1

    What is AWS auto-scaling?

    Amazon auto-scaling allows you to automatically adjust the number of EC2 instances in response to variations in demand.

  2. 2

    What is Elastic Load Balancing on AWS?

    AWS Elastic Load Balancing distributes incoming application traffic over many EC2 instances.

  3. 3

    What is Amazon Elastic Block Storage (EBS)?

    Amazon Elastic Block Store is a persistent block storage solution for EC2 instances.

  4. 4

    What is the Amazon Simple Queue Service (SQS)?

    Amazon Simple Queue Service is a fully managed message queuing service that facilitates microservice decoupling and scaling.

  5. 5

    What is Amazon Simple Notification Service?

    Amazon Simple Notification Service is a fully managed messaging solution that allows you to send and receive messages across Amazon Simple Notification Service accounts.

  6. 6

    What is Amazon DynamoDB?

    Amazon DynamoDB is a fully managed NoSQL database service that guarantees consistent and quick performance.

  7. 7

    What is AWS Elastic Beanstalk?

    AWS Elastic Beanstalk is a fully managed service that allows you to deploy and operate applications written in a variety of programming languages, including Java, Python, and Node.js.

  8. 8

    What is Amazon Kinesis?

    Amazon Kinesis is a fully managed service for collecting, processing, and analyzing real-time streaming data.

  9. 9

    What is the Amazon Elastic Container Service (ECS)?

    Docker containers are managed and operated in the cloud by Amazon Elastic Container Service, a container orchestration service.

  10. 10

    What is AWS Direct Connect?

    AWS Direct Connect is a network service that enables you to establish a dedicated network connection between your on-premises environment and AWS.

3. Advanced AWS Interview Questions

  1. 1

    What makes Amazon S3 and EBS different from one another?

    While Amazon EBS is a persistent block storage option that can be connected to EC2 instances, Amazon S3 is a scalable cloud storage solution for files and objects.

  2. 2

    Describe Amazon CloudTrail.

    Amazon CloudTrail is a service that offers a history of AWS API calls made to your account, together with the caller's name, the time the API was called, and the parameters that were used.

  3. 3

    Describe Amazon CloudWatch.

    Amazon CloudWatch is a monitoring service that offers in-depth analysis and real-time monitoring of AWS applications and resources.

  4. 4

    What is the AWS Elastic File System (EFS)?

    For usage with AWS services, the fully managed AWS Elastic File System file storage solution offers scalable and highly available file storage.

  5. 5

    Describe AWS Glue.

    Data may be easily moved across data stores with the help of the fully managed extract, transform, and load (ETL) service AWS Glue.

  6. 6

    What is Redshift by Amazon?

    Large amounts of data can be easily analyzed using SQL queries with the help of Amazon Redshift, a fully managed cloud-based data warehousing system.

  7. 7

    Describe AWS CloudHSM.

    Hardware security modules (HSMs) are a service offered by Amazon CloudHSM that are used to secure sensitive data in the cloud.

  8. 8

    Describe AWS X-Ray.

    End-to-end request visibility is offered by the AWS X-Ray service as requests move through your application.

  9. 9

    Describe AWS AppSync.

    Amazon AppSync is a fully managed service that simplifies the management of GraphQL APIs by doing the hard lifting of securely connecting to data sources such as AWS Lambda, AWS DynamoDB, and others.

  10. 10

    What are AWS Organizations?

    Amazon Organizations is a service that allows you to combine numerous AWS accounts into a single organization that you build and manage centrally.

4. Scenario-based AWS Interview Questions

  1. 1

    How would you set up auto-scaling in AWS for a web application that experiences spikes in traffic during specific times of the day?

    The answer could involve setting up an auto-scaling group and defining scaling policies based on CloudWatch metrics like CPU usage, and scheduling these policies to be in effect during the times of expected traffic spikes.

  2. 2

    How would you implement disaster recovery for a mission-critical application running in AWS?

    The answer involves setting up a backup and restore strategy using services like AWS S3 and AWS Glacier, implementing automated snapshot backups for databases and EBS volumes, and using a multi-AZ architecture to ensure high availability.

  3. 3

    How would you migrate an on-premises database to AWS?

    The answer could involve using services like (DMS) to replicate data from the on-premises database to an AWS database instance, testing and validating the migration, and adjusting application configurations to point to the new AWS database.

  4. 4

    How would you secure an AWS environment to comply with industry regulations like PCI-DSS?

    The answer could involve using AWS Identity and Access Management (IAM) to control user access, implementing security controls like encryption at rest and in transit, and using services like AWS Certificate Manager to manage SSL/TLS certificates.

  5. 5

    How would you optimize the performance of an AWS application?

    The answer could involve using services like AWS CloudFront for content delivery, implementing caching and load balancing, optimizing database queries, and monitoring performance using AWS CloudWatch.

  6. 6

    How would you implement a serverless architecture for a web application?

    The answer could involve using AWS Lambda functions to handle backend processing, Amazon API Gateway to expose APIs, Amazon S3 for file storage, and Amazon DynamoDB for data storage.

  7. 7

    How would you monitor and troubleshoot an application in AWS that is experiencing slow response times?

    The answer could involve using services like AWS CloudWatch to monitor application metrics, AWS X-Ray to trace requests and identify bottlenecks, and logging and error reporting services to track down issues.

  8. 8

    How would you implement a disaster recovery plan for a multi-region AWS environment?

    The answer could involve setting up AWS services like Route 53 for DNS failover, replicating data across multiple regions, and implementing cross-region traffic routing.

5. Technical and Non-Technical AWS Interview Questions

a. Technical AWS Questions 

  1. 1

    What precisely is the distinction between Amazon S3 and Amazon EBS?

    Amazon S3 is an object storage service that stores and retrieves data, whereas Amazon EBS is a block storage service that stores data persistently.

  2. 2

    What is the functionality of AWS Lambda, and what are some of its applications?

    AWS Lambda is a serverless compute solution that enables developers to run code without the need for server provisioning or management. It has a wide range of uses, including data processing, chatbots, and serverless web applications.

  3. 3

    Could you explain the Amazon VPC concept and how it differs from a typical network?

    It differs from a regular network in that it is totally virtual, requiring no actual hardware or infrastructure to set up.

  4. 4

    How do you handle security in AWS?

    Security in AWS is a shared responsibility between the customer and AWS. AWS provides a variety of security tools and services, while the customer is responsible for configuring and managing their infrastructure securely. 

  5. 5

    Can you walk me through the process of deploying a scalable web application using Amazon EC2 and Elastic Load Balancing?

    To deploy a scalable web application using Amazon EC2 and Elastic Load Balancing, you would first set up an EC2 instance and install your web application. 

    Then, you would configure Elastic Load Balancing to distribute incoming traffic across multiple instances, allowing you to scale horizontally as traffic increases. 

    Finally, you would configure auto-scaling to automatically add or remove instances as needed based on traffic demand.

b. Non-technical AWS Questions

  1. 1

    Can you offer an example of a moment when you had to collaborate with a group to complete a project?

    The response should be based on personal experience and should show teamwork, communication, and problem-solving abilities.

  2. 2

    How do you deal with stress or pressure at work?

    Answers should include stress-management tactics such as task prioritization, taking breaks, and asking help from colleagues or managers.

  3. 3

    Can you recall a time when you needed to master a new skill or technology for a project?

    The response should be based on personal experience and demonstrate adaptability, a willingness to learn, and problem-solving abilities.

  4. 4

    When confronted with a complex topic or task, how do you approach problem solving?

    An approach or framework for problem-solving, such as design thinking or root cause analysis, should be included in the response.

  5. 5

    Could you describe an instance where you had to explain technical knowledge to non-technical people?

    Your response should be based on a personal experience and show that you have the clarity and coherence to explain complicated technical ideas.

What are the best resources that can help you prepare for the interview?

There are numerous tools available to aid in your interview preparation for AWS. Some of the top sources are listed below:

AWS Documentation

If you want to learn more about AWS principles and services, consult the official AWS documentation. It goes into great detail on how to use each service and gives examples.

Amazon Online Training

AWS provides online training classes on a variety of subjects, from fundamental cloud computing ideas to cutting-edge AWS technologies. These courses are accessible for free and are self-paced.


Udemy offers a wide range of courses to help individuals prepare for AWS (Amazon Web Services) certification exams, which can be very helpful in preparing for technical interviews that focus on cloud computing. 


Whizlabs is an excellent resource for individuals who are preparing for AWS (Amazon Web Services) certification exams and want to improve their skills and knowledge in cloud computing. 

LinkedIn Learning

LinkedIn Learning offers courses on AWS and cloud computing topics, which can be a helpful resource for building your knowledge and skills.

YouTube tutorials

There are many tutorials and video resources available on YouTube that can help you learn about AWS and prepare for the interview. You can find tutorials on specific AWS services and concepts, as well as interview tips and advice.

Tips on how to get fully prepared for an AWS interview

Here are some tips on how to get fully prepared for an AWS interview:

  • Review the job description and company website

    Start by reviewing the job description and the company's website to understand the role and the company's culture. This will help you tailor your responses to fit the company's expectations.

  • Study AWS concepts and services

    Make sure you have a solid understanding of AWS services and concepts. Review the AWS documentation, whitepapers, and online training courses to build your knowledge.

  • Practice with mock interviews and questions

    Find practice interview questions online or through AWS certification courses and practice your responses. You can also participate in mock interviews with friends or colleagues to get feedback on your responses and improve your interview skills.

  • Showcase your experience

    Be prepared to talk about your previous experience and how it relates to the role you are applying for. Highlight specific examples of how you have used AWS services in your previous work.

What is the future scope of AWS and how can you advance in your career?

AWS's future scope appears positive, as more and more businesses migrate to the cloud and embrace cloud-based solutions. 

  • AWS is expected to be a prominent player in the cloud computing business as it grows. 

  • This means that professionals with AWS skills and certifications will be in great demand.

  • To further your AWS career, you can begin by earning AWS certifications. Amazon provides certifications ranging from foundational to expert-level that demonstrate your knowledge of AWS services and concepts. 

  • These credentials might help you stand out in a crowded work market and boost your earning potential.


AWS offers promising career opportunities as more companies move to the cloud. To succeed, one should have a solid understanding of AWS services, practice interview skills, gain experience, obtain certifications, network, and stay current with cloud trends.


Is the AWS interview difficult?

The difficulty level depends on the role and your level of experience. Prepare by studying AWS concepts and practicing interview questions.

How fast does AWS hire?

Hiring timelines vary depending on the role and the company's needs.

Do AWS jobs require coding?

Many AWS jobs require coding experience, but there are also non-technical roles available.

Does Amazon AWS pay well?

Yes, Amazon AWS is known for offering competitive salaries and benefits packages.

Which companies need AWS?

Many companies across various industries use AWS for their cloud computing needs, including Netflix, Airbnb, and Lyft.

About the author


Youssef is a Senior Cloud Consultant & Founder of

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