Kubernetes MCQ (Multiple Choice Questions), Kubernetes Online Quiz

1 .

Kubernetes or K8S was built by which company?

A)

Meta

B)

Apple

C)

Google

D)

Microsoft

Correct Answer : Google

2 .

What is the basic operational unit of Kubernetes or K8S?

A)

Pod

B)

Task

C)

Nodes

D)

Container

Correct Answer : Pod

Explanation : Containers are grouped into pods, the basic operational unit for Kubernetes and those pods scale to your desired state.

3 .

This volume type can be used to share contents within containers in a pod, but will not persist beyond the life of a pod.

A)

Local

B)

ConfigMap

C)

FlexVolume

D)

EmptyDir

Correct Answer : EmptyDir

4 .

An abstraction in kubernetes which defines a logical set of pods and a policy to access them.

A)

Node

B)

Service

C)

Container

D)

Kubelet

Correct Answer : Service

5 .

Which one of the following can be considered as the primary data store of Kubernetes ?

A)

pod

B)

etcd

C)

node

D)

None of the above

Correct Answer : etcd

6 .

Which of the following runs on each node and ensures containers are running in a pod?

A)

Pod

B)

Etcd

C)

Kubelet

D)

Scheduler

Correct Answer : Kubelet

Explanation : Kubelet runs on each node and ensures containers are running in a pod.

7 .

Which of the below is/are container orchestration technologies

A)

Mesos

B)

Kubernetes

C)

Docker Swarm

D)

All of the above

Correct Answer : All of the above

8 .

Which of the following are Kubernetes hosted solutions?

A)

Openshift Dedicated

B)

Google Container Engine

C)

Both (A) and (B)

D)

Amazon ECS

Correct Answer : Both (A) and (B)

9 .

Select the first release version of kubernetes in 2021?

A)

1.21

B)

1.23

C)

1.25

D)

1.29

Correct Answer : 1.21

10 .

Which of the following are core Kubernetes objects?

A)

Pods

B)

Volumes

C)

Services

D)

All of the above

Correct Answer : All of the above

11 .

Which of the below are container runtimes?

A)

CRI-O

B)

Containerd

C)

DockerEngine

D)

All of the above

Correct Answer : All of the above

12 .

Replication Controllers and Deployment Controllers are part of_________

A)

Kubeadm

B)

Master Controller Manager

C)

Etcd manager

D)

API Controller Manager

Correct Answer : Master Controller Manager

13 .

The Service Type_________works only if your cluster is setup to work with a cloud provider.

A)

NodePort

B)

ClusterIP

C)

LoadBalancer

D)

ExternalName

Correct Answer : LoadBalancer

14 .

Kube-apiserver on kubernetes master is designed to scale.

A)

Vertically

B)

Horizontally

C)

Both (A) and (B)

D)

None of the above

Correct Answer : Horizontally

15 .

What is Kubernetes?

A)

Portable platform

B)

Extensible platform

C)

Open-source platform

D)

All of the Above

Correct Answer : All of the Above

Explanation : Kubernetes is a portable, extensible, open-source platform for managing containerized workloads and services, that facilitates both declarative configuration and automation.

16 .

What was Kubernetes called before it got opensource?

A)

Borg

B)

Rocket

C)

Kubecon

D)

Containerd

Correct Answer : Borg

17 .

What is the correct fqdn for service "nginx" in namespace "app"?

A)

nginx.local

B)

nginx.svc.cluster.local

C)

nginx.app.cluster.local

D)

nginx.app.svc.cluster.local

Correct Answer : nginx.app.svc.cluster.local

18 .

What is not a valid affinity rule?

A)

Pod Affinity

B)

Node Affinity

C)

Node Anti Affinity

D)

Pod AntiAffinity

Correct Answer : Node Anti Affinity

19 .

In kubernetes a node is_______

A)

developing tool

B)

A worker machine

C)

A tool for starting a kubernetes cluster on a local machine

D)

None of the above

Correct Answer : A worker machine

20 .

Kubernetes is written in which language?

A)

Go

B)

C++

C)

Python

D)

Java spring framework

Correct Answer : Go

21 .

To create a new deployment in kubernetes, use the command________

A)

Kubectl run

B)

Kubernetes set deployment

C)

Kubernetes get deployment

D)

None of the above

Correct Answer : Kubectl run

22 .

Which of the following command is used to create kubernetes service?

A)

Kubectl run

B)

Kubectl deploy

C)

Kubectl expose

D)

None of the above

Correct Answer : Kubectl expose

23 .

A service account is scoped to a namespace___

A)

True

B)

False

C)

None of the above

D)

--

Correct Answer : True

24 .

A service account can be binded to?

A)

A role

B)

A clusterrole

C)

Both (A) and (B)

D)

A rolebinding

Correct Answer : Both (A) and (B)

25 .

which of the following process runs on kubernetes non-master node?

A)

Kube-apiserver

B)

Kube-proxy

C)

Both (A) and (B)

D)

None of the above

Correct Answer : Kube-proxy

26 .

Cronjobs in kubernetes run in_________

A)

GMT only

B)

UTC only

C)

Local time zone

D)

Server NTP settings

Correct Answer : UTC only

27 .

Which of the following is a Kubernetes controllers?

A)

Replicaset

B)

Deployment

C)

Namespace

D)

Both (A) and (B)

Correct Answer : Both (A) and (B)

28 .

Based on what do Networkpolicy resources select pods to define and apply rules?

A)

Labels

B)

Pod names

C)

Namespace name

D)

All of the above

Correct Answer : Labels

29 .

Which description best fits a DaemonSet?

A)

A system to connect nodes and pods

B)

A method to manage clusters of pods

C)

A way to run a copy of a pod on all or some nodes

D)

A channel through which to pass information between two or more nodes

Correct Answer : A way to run a copy of a pod on all or some nodes

30 .

Which of the following things are managed by a container orchestration platform?

A)

adding/removing containers

B)

re-scheduling failed containers

C)

Fixing a crashed container by itself

D)

Both (A) and (B)

Correct Answer : Both (A) and (B)

31 .

I do not want my service to be visible outside my cluster. Which service should I use?

A)

NodePort

B)

ClusterIP

C)

LoadBalancer

D)

External Name Creation

Correct Answer : ClusterIP

32 .

____________is a special namespace that is used for special purposes like bootstrapping a cluster.

A)

Default

B)

Kube-public

C)

Kube-system

D)

Kube-private

Correct Answer : Kube-public

33 .

Kubernetes uses__________________to connect to ouath 2 providers to offload the authentication to external services.

A)

OpenID Connect Tokens

B)

Keystone Password

C)

Authentication Proxy

D)

Webhook Token Authentication

Correct Answer : OpenID Connect Tokens

34 .

Following k8s resources do not associate with any namespace.

A)

DaemonSets

B)

Nodes

C)

PersistentVolumes

D)

Both (B) and (C)

Correct Answer : Both (B) and (C)

35 .

The Kubernetes Network proxy runs on which node?

A)

Worker Node

B)

Master Node

C)

Both (A) and (B)

D)

None of the above

Correct Answer : Master Node

36 .

Which master component interacts with etcd?

A)

Kube-controller

B)

Kube-scheduler

C)

Kube-apiserver

D)

None of the above

Correct Answer : Kube-apiserver

37 .

What is a pod in Kubernetes and what does it do?

A)

Where you find peas

B)

One or more containers grouped together to share resources and run as a unit

C)

A collection of physical IT components that supports a group of containers

D)

A collection of logic circuitry that evaluates a computer's operational code

Correct Answer : One or more containers grouped together to share resources and run as a unit

38 .

Kubernetes allows you to manage container clusters in multiple cloud providers.

A)

True

B)

False

C)

None of the above

D)

--

Correct Answer : True

39 .

What is a Kubernetes volume?

A)

Code that enables two software programs to communicate

B)

A directory for the data accessible to containers in a pod

C)

Layering software that puts apps into compartments for easier deployment

D)

None of the above

Correct Answer : A directory for the data accessible to containers in a pod

40 .

Which of the following is not suited for Monolithic Architecture?

A)

Distributed System

B)

Standalone application

C)

Both (A) and (B)

D)

None of the above

Correct Answer : Distributed System

41 .

Which one is not part of Kubernetes architecture?

A)

Data plane

B)

Control plane

C)

Management plane

D)

None of the above

Correct Answer : Management plane

42 .

Why do we need to tag images created by docker?

A)

To maintain multiple versions of same image using same image names

B)

We don't need to tag images, we can create same image with different image names

C)

Both (A) and (B)

D)

None of the above

Correct Answer : To maintain multiple versions of same image using same image names

43 .

What Kubernetes resources are NOT used to ensure the Application management?

A)

Pods

B)

Secrets

C)

ReplicaSets

D)

Deployments

Correct Answer : Secrets

44 .

What is the SLA of EKS API server endpoint?

A)

99.95%

B)

99.9%

C)

99.99%

D)

We do not gurantee any SLA

Correct Answer : 99.95%

45 .

Which of the following are NOT a Container Orchestrators?

A)

Kubernetes

B)

Docker Swarm

C)

Vault

D)

All of the above

Correct Answer : Vault

46 .

Name the 4 main network issues/problems/topics within Kubernetes?

A)

Pod to Pod

B)

Pod to Service

C)

Container to Container

D)

All of the above

Correct Answer : All of the above

47 .

What are types of Kubernetes Volumes?

A)

secret

B)

emptydir

C)

configmap

D)

All of the above

Correct Answer : All of the above

48 .

Which 2 steps does the scheduler perform to select a node for a pod?

A)

Scoring

B)

Filtering

C)

Both (A) and (B)

D)

Analyzing

Correct Answer : Both (A) and (B)

49 .

What happens when a master node inside kubernetes fails?

A)

Pods go into hung state

B)

Pods still get created

C)

Pods do not get created

D)

Pods go into terminating state

Correct Answer : Pods still get created

50 .

Generally, what is a proxy service used for?

A)

To act as an intermediary between an endpoint device and another server

B)

To relay connection requests for inbound network traffic

C)

To connect external parties and route data between internal and external containers

D)

To supplant an authentic webpage in a search engine's index and search page results

Correct Answer : To act as an intermediary between an endpoint device and another server