DevOps

What types of Terraform backends have you worked with?

Explain the difference between Kubernetes Deployment and StatefulSet.

What is the difference between public and private hosted zones in Route 53?

If there is no Helm Chart for ELK Stack, how to deploy the stack in Kubernetes and what resources to use?

What are the main types of AWS Lambda invocations?

Would you attach Security Group or Network ACL to an EC2 instance?

There are two VPCs in different regions. How to establish network connectivity between them and what options to use?

Why did you use DynamoDB together with S3 backend in Terraform?

What is split-horizon DNS (split-brain DNS)?

The EC2 has a self-hosted GitHub Runner that builds Docker images for 50 repositories, and the disk is constantly filling up. How to diagnose, fix, and prevent the problem?

Tell us about yourself, your previous work experience, and especially your experience with AWS: which services have you worked with?

What meta-arguments do you know in Terraform?

In a StatefulSet with three replicas in each zone, two zones, and their nodes lose network connectivity completely, how will the Kubernetes cluster and pods behave?

What are the main recommendations and best practices you apply when writing Dockerfiles?

What is a Network Access Control List (NACL)?

How to implement Terraform state locking without DynamoDB, using S3?

Created 10 EC2 instances with `count = 10`. The instance with index 5 was manually deleted in AWS, then `count` is changed to 9. What will `terraform plan` show?

Explain the difference between public, private, and isolated subnets in AWS.