51 Best AWS Interview Questions For Experienced Architect

Do you want to ace your next interview for a senior Solution Architect position? Study these AWS Interview Questions for Experienced solutions architect to prepare.

You’ve obtained your Associate and Professional-level AWS Certified Solutions Architect Certifications, but they won’t be enough to land you a high-profile AWS job.

To make it to a senior role related to Solutions Architect professionals, you’ll also need to possess some experience in a similar capacity.

If you have that too, make sure you’re aware of the answers to the following AWS interview questions for Solutions Architect professionals:

AWS Interview Questions For Experienced Architect

1. What Do You Understand by Amazon Elastic Compute Cloud?

The AWS Elastic Compute Cloud (EC2) service offers scalable capacity for cloud computing without requiring you to invest in hardware architecture.

Users and businesses leverage AWS EC2 to launch their desired number of virtual servers, conduct storage management, and manipulate security and networking.

To align with the changes in requirements, it can be scaled up and down, precluding the need to predict traffic. The virtual computing environments provided by AWS EC2 are referred to as “instances”.

2. Tell Us about the Best Security Practices for Integrating Amazon EC2.

Interviewers often ask this type of question to obtain an idea that as an experienced Solutions Architect professional, how you can ensure that cloud-based processes and company networks stay encrypted and safe from security threats.

When answering this question, demonstrate your problem-solving skills and attention to detail by providing examples of how you implement this process and minimize security risks in an AWS framework. Here is what your answer should look like:

Among the best security practices for integrating AWS EC2 include leveraging the identity and access management protocols to limit and control access to AWS resources.

This is best done by routinely assessing the protocols set in security groups and granting permissions based on these rules only.

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3. How Would You Ensure Security if a Password Is Compromised?

This might be a follow-up question for your response to the previous question. Here is what you should answer:

We can simply disable password-based login capability. That way, should the password gets compromised, passwords alone won’t be enough to gain access to the server.

4. Define Identity and Access Management and Explain How Do You Use it?

IAM is an AWS service that allows you to maintain control over AWS resources in a secure manner.

Using IAM, you can limit access to a specific group of people who use your AWS resources or create and manipulate services for user authentication. To use IAM, you perform the following tasks:

Step 1: Create an Administrators group, which represents a collection of users with comparable responsibilities, and set permissions for the group to access the resources in your AWS account.

There can be multiple users in a group and a user can be in more than one group, but a group can’t host another group.

Step 2: Create for yourself a user and make it part of the Administrators group.

Step 3: Set up a password for this user that you can use to log in to your AWS Management Console.

Step 4: Now grant permission to the administrator group to access all the resources in your AWS account. These are any AWS products you have been signed up for and use.

Except for the security credentials for your AWS account, all information in your AWS account can be accessed by users in the Administrators group.

5. When Should the Different Types of Instances Be Used?

As an experienced Solutions Architect professional, you probably already know that instances in AWS are virtual environments rented by users for hosting their applications and that AWS has different types of instances.

With this question, the interviewer wants to gauge your understanding of instances, including which types suitable for different processes.

Since Solutions Architect professional is a senior role, a simple, straightforward answer won’t be enough.

To impress the recruiter, you’ll also need to prove your critical thinking and analytical skills with regard to handling complicated projects. We suggest elaborating your answer with the following insights:

When you want to strike the right balance between computing and memory resources, networking, and work-for applications that rely on resources in equal measure, general-purpose instances are the best.

On the other hand, applications that demand high-performance processors such as gaming servers, batch workloads, and media transcoding, nothing beats compute-optimized instances.

And then there exist memory-optimized instances that allow for speedy performance for applications responsible for processing large data sets in the memory.

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Other than that, you also have storage-optimized instances that offer sequential read and write access to enormous data sets in local storage.

Finally, accelerated computing instances perform several functions such as number and graphics processing and calculations using co-processors.

6. What’s the Need for a Buffer in AWS?

With this question, the interviewer wants to know how you improve the usability of the networks and streamline processes by applying functions in AWS.

Use examples to demonstrate the technical skills that are necessary to approach these AWS functions on the job. Your answer should cover the following:

When it comes to efficiency, you just can’t ignore the value offered by buffers, which makes the overall system incredibly efficient in managing the traffic load.

They synchronize the different components in AWS to receive and process requests in a balanced way.

As the end result, the system performs functions at comparable speeds, delivering highly efficient services in the cloud environment.

7. How Can You Improve the Performance of Elastic Block Store?

This is among the various feature-based questions that employers often ask when a particular feature is important to them.

To be able to answer such tough questions, you’ll need to refresh your understanding of the various AWS concepts by accessing resources available online or studying AWS coursework. We suggest an answer similar to this one:

Since performance needs tend to vary, it’s important to determine the ideal EBS performance level. To account for any potential issues that may emerge, it might be essential to set up incremental improvements.

Once the desired EBS performance level is known, it becomes possible to execute software and conduct data striping on all volumes. If further improvements in performance are required, you’ll need to regularly evaluate the performance and set up more protocols.

8. Tell Us about an Issue You Encountered while Connecting to an Instance and How You Solved it.

Evidently, this is a scenario-based question for an experienced Solution Architect professional designed to let the interviewer know about your expertise in applying designs and executing solutions when faced with connection issues while navigating the system.

In the answer, you’re expected to provide one or more examples in which you troubleshot a connection problem and implement solutions to support usability. Here is an example of an impressive answer:

There’s one issue I resolved in my last role thrice. It’s what we commonly referred to as a connection timeout.

Before anything else, I would see whether the connection is being blocked by a firewall that might be causing the connection timeout. Next, I would go on to ensure and verify that the SSH service is working properly on the instance.

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Whenever I found that the server connection was blocked by a firewall, I would disable the firewall first and then restart the SSH service.

9. What AWS Services Are Useful for Acquiring and Processing e-Commerce Data?

The two most valuable AWS services to collect and process e-Commerce data include Amazon DynamoDB and Amazon Redshift. Remember, data on e-Commerce websites are available in the raw state.

Since both the solutions mentioned above function well with unstructured data, they are ideal for the job.

10. Why Do We Make Subnets?

Some of the reasons to make subnets include:

  • When it comes to using networks with a large number of hosts, subnets can be of great help in defining their correct use.
  • To address the shortage that stems from deficiency of hosts.
  • It can be paid to a lack of networks.
  • To make the most out of networks that hold fewer number of hosts.

11. What Are the Benefits of Auto-Scaling?

This interview question is often asked to determine your ability to apply automated processes to refine business functions, while also saving money and time.

The best answer will not only discuss the advantages of different AWS auto-scaling features but also emphasize how auto-scaling can be used to accomplish business goals and achieve better outcomes. Try to cover the points mentioned in this answer:

Auto-scaling offers various advantages to organizations. One of them is its predictable method of evaluating performance that stems from its ability to establish automatic adjustments for capacity and monitor applications in AWS.

Moreover, executing auto-scaling for multiple resources across a range of services happens to be efficient and quick. Not to forget, auto-scaling leads to lower costs, making it highly affordable.

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Now that you’re aware of the most frequently asked AWS questions for Solutions Architect professionals, develop an in-depth understanding of each concept discussed in this guide before going to an interview.

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