Chapter 1

Question 1

What is the primary purpose of Kubernetes?

Answer 1

To automate the deployment, scaling, and management of containerized applications.

Question 2

True or False: Kubernetes is an open-source platform.

Answer 2

True

Question 3

What is a Pod in Kubernetes?

Answer 3

The smallest deployable unit in Kubernetes, which can contain one or more containers.

Question 4

Fill in the blank: A __________ is a set of Pods that are meant to run the same application.

Answer 4

Deployment

Question 5

What component manages the Kubernetes cluster’s state and communicates with the API server?

Answer 5

etcd

Question 6

Which Kubernetes component is responsible for scheduling Pods onto Nodes?

Answer 6

Kube Scheduler

Question 7

What is the function of the Kube Controller Manager?

Answer 7

It manages controllers that regulate the state of the cluster.

Question 8

True or False: Nodes in Kubernetes can only run Linux containers.

Answer 8

False

Question 9

What is a Service in Kubernetes?

Answer 9

An abstraction that defines a logical set of Pods and a policy to access them.

Question 10

What does the Kubernetes API server do?

Answer 10

It serves the Kubernetes API and acts as the front-end for the control plane.

Question 11

What is the role of a Namespace in Kubernetes?

Answer 11

To provide a way to divide cluster resources between multiple users or teams.

Question 12

Fill in the blank: The __________ is responsible for the container runtime and managing the lifecycle of containers on a Node.

Answer 12

Kubelet

Question 13

What protocol does Kubernetes use for communication between its components?

Answer 13

HTTP/HTTPS

Question 14

Which component is responsible for monitoring and logging in Kubernetes?

Answer 14

Kubelet

Question 15

What is a ConfigMap in Kubernetes?

Answer 15

A resource that allows you to store non-confidential data in key-value pairs.

Question 16

True or False: Kubernetes supports automatic scaling of applications.

Answer 16

True

Question 17

What is the purpose of a PersistentVolume in Kubernetes?

Answer 17

To provide a way for Pods to access storage resources.

Question 18

What does the term ‘self-healing’ refer to in Kubernetes?

Answer 18

The ability of the system to automatically replace and reschedule failed containers.

Question 19

Fill in the blank: A __________ is used to define how to run a containerized application in Kubernetes.

Answer 19

Pod specification

Question 20

What is the primary function of the Kube Proxy?

Answer 20

To manage network routing for Services and ensure network traffic is directed to the correct Pods.

Question 21

What is Helm in the context of Kubernetes?

Answer 21

A package manager for Kubernetes that helps manage complex applications.

Question 22

True or False: In Kubernetes, a Job is used to run a one-time task.

Answer 22

True

Question 23

What is a StatefulSet in Kubernetes?

Answer 23

A resource that manages the deployment and scaling of a set of Pods with unique identities and stable storage.

Question 24

What is the role of the Kubernetes Dashboard?

Answer 24

To provide a web-based user interface for managing Kubernetes clusters.

Question 25

Fill in the blank: __________ allows you to define the desired state of your application and its components.

Answer 25

Declarative configuration

Question 26

What does RBAC stand for in Kubernetes?

Answer 26

Role-Based Access Control

Question 27

What is a DaemonSet in Kubernetes?

Answer 27

A resource that ensures that a copy of a Pod is running on all or some Nodes in the cluster.