Mastering AWS Interview: 751 Questions & Answers for Success by Mahato Bhanu Pratap

Author:Mahato, Bhanu Pratap
Language: eng
Format: epub
Published: 2023-08-18T00:00:00+00:00

Question 14: How do you perform rolling updates of application deployments in EKS?

Answer: Rolling updates can be achieved by updating the Kubernetes Deployment configuration. EKS will then gradually replace the old pods with the updated ones to ensure minimal downtime.

Question 15: Can you integrate EKS with AWS Identity and Access Management (IAM)?

Answer: Yes, EKS supports IAM roles for service accounts (IRSA), allowing pods to assume IAM roles and access AWS services securely.

Question 16: What are EKS Managed Node Groups, and how do they differ from traditional node groups?

Answer: EKS Managed Node Groups are a simplified way to create and manage worker nodes. They are fully managed by EKS, handling node provisioning, scaling, and updates.

Question 17: How do you perform upgrades or patches to your EKS cluster's Kubernetes version?

Answer: EKS supports automated upgrades for the control plane and node groups. You can initiate upgrades through the EKS console, CLI, or API.

Question 18: What is EKS Anywhere, and how does it extend EKS capabilities?

Answer: EKS Anywhere extends EKS to on-premises environments, enabling consistent Kubernetes management across cloud and on-premises infrastructure.

Question 19: How do you secure communication within an EKS cluster and with external services?

Answer: EKS secures communication using encryption, IAM roles, and security groups. It supports Network Policies to control traffic between pods.

Question 20: Can you horizontally auto-scale pods based on metrics in EKS? If yes, how?

Answer: Yes, EKS supports Horizontal Pod Autoscaling (HPA) based on custom metrics or CPU/memory usage. You can define HPA settings in Kubernetes manifests.

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