Top 20 Interview Questions & Answers for AWS Solutions Architect – 2025

As technology continues to advance and businesses shift towards cloud computing, the demand for AWS solutions architects is on the rise. If you're interviewing for this role, it's important to showcase your knowledge, experience, and problem-solving skills. Here are 20 up-to-date questions and answers to help you prepare for your upcoming interview.

General Questions

• 1. How would you explain AWS to a non-technical person?
  AWS stands for Amazon Web Services, and it's a cloud computing platform that allows businesses and individuals to run applications, store data, and access a variety of other services over the internet. It offers a wide range of tools and resources that can significantly improve efficiency and reduce costs for businesses of all sizes.
• 2. What interests you about working as an AWS solutions architect?
  As an AWS solutions architect, I am able to work with cutting-edge technology and help businesses solve complex problems. It's a constantly evolving field that provides opportunities for continuous learning and growth. I also enjoy the challenge of designing and implementing solutions that can make a tangible difference for companies.
• 3. What do you think are the biggest benefits of using AWS?
  There are many benefits of using AWS, including cost savings, scalability, and improved flexibility. With AWS, businesses only pay for the services they use, and they can easily scale up or down depending on their needs. Additionally, AWS offers a wide range of tools and resources that businesses can utilize, making it a highly customizable and versatile platform.
• 3. How do you keep up with new AWS updates and features?
  As a solutions architect, it's important to stay updated on the latest AWS updates, features, and services. I make use of resources such as AWS's documentation, blog posts, and webinars. I also participate in online communities and forums to stay connected with other AWS professionals and learn from their experiences.
• 4. Can you provide an example of a time when you had to troubleshoot an issue with an AWS service?
  In one instance, I was working on a project involving multiple AWS services, and there were issues with communication between them. After investigating, I discovered that the root cause was a misconfiguration in the security groups. I quickly rectified the issue, and the project was able to move forward smoothly.

Technical Questions

• 5. Can you explain the difference between S3 and EBS?
  S3, or Simple Storage Service, is a cloud storage service that offers long-term storage for data, while EBS, or Elastic Block Store, is a block-level storage service that is used for storage of data during the lifetime of an EC2 instance.
• 6. What is the difference between horizontal and vertical scaling?
  In horizontal scaling, additional resources are added to an existing instance to handle increased demand, while in vertical scaling, a larger instance with more resources is utilized to handle the increased demand. Horizontal scaling is typically used in load-balancing scenarios, while vertical scaling is used to optimize performance for individual instances.
• 7. How do you configure an EC2 instance to automatically scale?
  To configure an EC2 instance to automatically scale, you need to create an auto-scaling group, define the minimum and maximum number of instances, configure scaling policies based on metrics such as CPU usage, and attach a load balancer to your auto-scaling group.
• 8. What is a VPC and how does it relate to AWS networking?
  VPC stands for Virtual Private Cloud, and it's a virtual network that is isolated from the rest of the AWS infrastructure. It allows you to define a private IP address range, create subnets, and configure routing tables, network gateways, and ACLs. VPCs are essential for setting up a private network within AWS.
• 9. How do you secure data stored on S3?
  Data stored on S3 can be secured in various ways, such as using IAM policies, bucket policies, or ACLs. You can also use server-side encryption to protect data at rest, or client-side encryption to protect data in transit.
• 10. What is the AWS Well-Architected Framework?
  The AWS Well-Architected Framework provides best practices and guidance for designing and operating reliable, secure, efficient, and cost-effective systems on AWS. It covers five pillars: operational excellence, security, reliability, performance efficiency, and cost optimization.

Behavioral Questions

• 11. Can you tell me about a time when you had to persuade a team to adopt a new technology or process?
  In my previous role, I was working on implementing a new CI/CD process for our team. Some members were hesitant to adopt it, as it required learning new tools and adjusting their workflow. To persuade them, I organized a training session to demonstrate the benefits and address their concerns. By the end of the session, everyone was on board and embraced the new process.
• 12. How do you handle conflicting priorities when working on multiple projects simultaneously?
  In this field, it's common to work on multiple projects at once. To handle conflicting priorities, I make sure to prioritize tasks based on their urgency and impact, communicate closely with team members to stay updated on project timelines, and remain flexible and adaptable in case any changes need to be made.
• 13. Tell me about a time when you had to quickly learn and apply a new technology or programming language.
  When I was working on a project that involved using a new programming language, I took it as an opportunity to expand my skills. I dedicated time to learning the basics and familiarized myself with the syntax, libraries, and best practices. With some extra effort, I was able to successfully incorporate the new language into the project.
• 14. How do you handle challenges or setbacks during a project?
  Challenges and setbacks are inevitable in any project. To handle them, I first assess the situation and try to identify the root cause. I then communicate with my team and any other stakeholders to come up with a solution. I also make sure to remain calm, focused, and positive, as this can help to motivate and inspire others in the team as well.
• 15. Tell me about a time when you had to work with a difficult team member.
  In a previous project, I had to work with a team member who had a negative attitude and was not very cooperative. To handle this, I made sure to communicate frequently and clearly, keep a positive attitude, and actively listen to their feedback and concerns. With patience and understanding, we were eventually able to work together effectively and complete the project successfully.

Situational Questions

• 16. How would you handle a situation where a client requests a feature that is not supported by AWS?
  In this situation, I would first thoroughly research the client's request and the reasons behind it. I would then try to find a workaround or alternative solution within the capabilities of AWS, and communicate this with the client. If the request is not feasible, I would have an open and honest conversation with the client about the limitations and propose an alternative approach that can meet their needs.
• 17. If you were given a limited budget for an AWS project, how would you prioritize the allocation of resources?
  In this scenario, I would first assess the project requirements and goals, and prioritize essential resources that are required for the project to be successful. This could include infrastructure, security, and performance-related resources. I would also consider any potential risks and adjust the budget allocation accordingly.
• 18. How would you handle a situation where a critical AWS service is experiencing a major outage?
  If a critical AWS service is experiencing a major outage, the first step would be to communicate with the impacted parties and ensure they are aware of the issue and its impact. Next, I would work closely with the AWS support team to troubleshoot the issue and implement any recommended solutions. I would also communicate regularly with stakeholders and keep them updated on the progress and a timeline for resolving the issue.
• 19. If you discovered a security vulnerability within an AWS service, how would you handle it?
  In the event of a security vulnerability, the first step would be to immediately report it to the appropriate channels, such as the AWS security team. I would then work with the team to address and fix the vulnerability, and communicate any necessary actions to be taken by clients or end-users. I would also perform a thorough review of other AWS services to ensure there are no similar vulnerabilities present.
• 20. How do you prioritize tasks when working on a project with tight deadlines and limited resources?
  In this situation, I would first prioritize tasks based on their urgency and impact on the project. I would also make sure to communicate with team members to set realistic expectations and manage timelines. If necessary, I would also delegate tasks or allocate additional resources to ensure the project can be completed within the given timeline.