Google Kubernetes Engine

Question 1

What is Google Kubernetes Engine (GKE)?

Answer 1

A managed Kubernetes service for deploying, managing, and scaling containerized applications using Google Cloud

Question 2

What is a Kubernetes cluster in GKE?

Answer 2

A set of nodes that run containerized applications managed by Kubernetes

Question 3

What is a node in a GKE cluster?

Answer 3

A VM instance in Compute Engine that runs containerized applications and is managed by the Kubernetes control plane

Question 4

What is the Kubernetes control plane?

Answer 4

The set of processes that manage the state of a Kubernetes cluster, including the API server, scheduler, and controller manager

Question 5

How do you create a GKE cluster?

Answer 5

Using the Google Cloud Console, gcloud command-line tool, or API

Question 6

What is a pod in Kubernetes?

Answer 6

The smallest deployable unit in Kubernetes, consisting of one or more containers that share storage and network resources

Question 7

What is a deployment in Kubernetes?

Answer 7

A resource that manages a set of identical pods, ensuring the desired number of replicas are running

Question 8

What is a service in Kubernetes?

Answer 8

An abstraction that defines a logical set of pods and a policy for accessing them, often used for load balancing

Question 9

What is a namespace in Kubernetes?

Answer 9

A way to divide cluster resources between multiple users or teams

Question 10

What is a ConfigMap in Kubernetes?

Answer 10

A resource used to store configuration data that can be consumed by pods

Question 11

What is a Secret in Kubernetes?

Answer 11

A resource used to store sensitive data, such as passwords, OAuth tokens, and SSH keys

Question 12

How do you scale a deployment in GKE?

Answer 12

By modifying the deployment’s replica count using the kubectl command or the Google Cloud Console

Question 13

What is a StatefulSet in Kubernetes?

Answer 13

A resource used to manage stateful applications, ensuring that each pod has a unique, stable identity and persistent storage

Question 14

What is a DaemonSet in Kubernetes?

Answer 14

A resource that ensures that a copy of a pod runs on all (or some) nodes in the cluster

Question 15

What is the purpose of using node pools in GKE?

Answer 15

To group nodes within a cluster based on their configuration, such as machine type or labels, allowing for more flexible management