Certified DevOps Engineer Professional Exam

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DevOpsUniversity.org offers many resources and setup guides free to the DevOps community.

Among these tools are our mock exams, these exams or assessments provides you the impression of the actual DevOps Certification exams. There is no fee for these assessments and these will allow you to evaluate your understanding of DevOps. The assessment results will guide you around your areas where you to need to learn or focus more.

Test your DevOps skills with our mock exams. Best of luck!

We are in the process of updating the questions as a routine monthly amendments.

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Description

DevOpsUniversity.org offers many resources and setup guides free to the DevOps community.

Test your DevOps skills with our mock exams. Best of luck!

We are in the process of updating the questions as a routine monthly amendments.

Certified DevOps Professional Mock Exam

1 / 30

What is the command to view the changes made in the docker image?

docker show

docker commit

docker ps

docker diff

2 / 30

To monitor a windows server services through Nagios, you have to edit ________ file and change its __________ and _____________ in all the host and service definition.

localhost.cfg, host_name, ip_address

windows.cfg, host_name, ip_address

nagios.cfg, host_name, ip_address

server.cfg, host_name, ip_address

3 / 30

What is the command to remove all the images at once?

docker rmi image_id

docker rm $(docker images)

docker rm $(docker ps -q)

docker rmi $(docker images -q)

4 / 30

Which one is a better solution if many people are working simultaneously on the same project

Without Version control

Local version Control

Centralised Version Control

None of the above

5 / 30

What is the command to see all the commits made in the current branch

git show

git commit

git status

git log

6 / 30

Which Kubernetes command is used to start a new cluster?

kubectl start --apiserver-adevertise-address= --pod-network-cidr=192.168.0.0/16

kubeadm start cluster --master-cluster-address=

kubectl init new cluster --apiserver-advertise-address= --pod-network-cidr=

kubeadm init --apiserver-advertise-address= --pod-network-cidr=

7 / 30

Why do we use rolling-update?

To maintain least amount of application downtime by updating one instance at a time

To update kubernetes services within the cluster

To revive unhealthy or dead pods in the deployments

To update kubernetes to the latest version or the latest beta release if running the beta version

8 / 30

What is the command to build the module?

/opt/puppetlabs/bin/puppet module create

/opt/puppetlabs/bin/puppet module build

puppet -m build

/opt/puppetlabs/bin/puppet -m build

9 / 30

The best practice mode among different modes of authorization is

Legacy mode

Logged-in users can do anything

Matrix-based security

Anyone can do anything

10 / 30

The command which is used by the agent node to pull the catalog is

/opt/puppetlabs/bin/puppet agent -test

/opt/puppetlabs/bin/puppet -test

/opt/puppetlabs/bin/puppet agent -t

puppet agent -test

11 / 30

Which of the following statement is not true about tasks in Playbooks?

All the tasks that are to be executed on remote systems are defined under the tasks section

A single play can consist multiple tasks

Handlers are tasks which are executed multiple times

Tasks are executed in order

12 / 30

Playbooks are the _______

units which actually gets the work done in Ansible.

plugins which provide extra functionality to Ansible.

roles which can be used inside playbooks and even as in-line commands.

Ansibles way of deploying and configuring different remote servers and environments.

13 / 30

What are Services in Kubernetes?

Services allow kubernetes to use external tools in the form of a service

Services provide access to the pods it is attached to, acting as load balancers for kubernetes

Services allows deployment of multi-container pods on different nodes

Services help configure the way kubernetes behaves and communicates with different controllers running on it.

14 / 30

What is the command to know if a branch is not merged to master branch in git?

git branch -merged

git branch -nomerged

git branch -not-merged

git branch -no-merged

15 / 30

What will happen if we run the "docker run it h forcommit - -name=4commit ubuntu" command?

It will create a new container (forcommit) and a new hostname (4commit)

It will create a new hostname(4commit) and a new container (forcommit)

It will not create a new hostname(forcommit) and a new container (4commit)

It will create a new hostname(forcommit) and a new container (4commit)

16 / 30

What is the command to update the changes made in local repository in remote repository

git fetch

git commit

git push

git status

17 / 30

What is not true about swarm manager?

Multiple swarm manager can be created for creating high availability cluster

Only one swarm manager can be assigned for a single swarm cluster

For manager we have to use --force command while leaving the cluster cluster

Docker manager handles cluster management tasks such as maintaining cluster and scheduling services

18 / 30

The four main components of declarative pipeline in correct a sequence are:

nodes,stages,steps,directives

node,stages,directives,steps

stages,nodes,directives,steps

steps,nodes,stages,directives

19 / 30

Which command is used to add a user to a host using an Ansible ad-hoc command?

ansible -b -k -m user 'name=name_of_user'

ansible -b -k -m user 'name=name_of_user' name_of_host

ansible -b -k -m user -a 'name=name_of_user' name_of_host

ansible -b -k -m user -a 'name=name_of_host' name_of_user

20 / 30

Which among these files are not in objects directory?

nagios.cfg

windows.cfg

printer.cfg

localhost.cfg

21 / 30

Why do we use Kubernetes Dashboard?

It provides pre-loaded services which allow easier deployment of Kubernetes Objects

Because replication controllers do not work without a Dashboard

It provides a GUI based interface from which you can control and monitor you cluster from a Web Browser

None of these

22 / 30

What is the command to create and switch to a branch?

git checkin -b

git checkout -b

git check -b

git branch

23 / 30

\"docker node ls\" command is used on _______

the agent node to view the nodes that have been connected through swarm cluster

the manager node to view the nodes that have been connected through swarm cluster

all the nodes to view the nodes that have joined the swarm cluster

the docker machine to view the number of containers on the current machine

24 / 30

Which of the following statement is not true about inventory files?

Ansibles inventory lists all the platforms you want to automate across

It is not possible to have multiple inventory files at the same time

The host inventory file can contain host names either individually or in groups

While writing an inventory file, host Groups can be created by giving a group name within square brackets

25 / 30

Which plugin is used to generate report for code coverage in Jenkins?

Findbug

Junit

Surefire

Cobertura

26 / 30

Which one is true among the following statements?

Docker images are made up of single layer which is read-only filesystem

Docker images are made up of single layer which is write-only filesystem

Docker images are made up of multiple layers which is write-only filesystem

Docker images are made up of multiple layers which are read-only filesystem

27 / 30

The command to see the changes made to a tracked file ?

git status

git init

git diff

git commit

28 / 30

What is the command to view the image id only?

docker images

docker ps

docker ps -q

docker images -q

29 / 30

What is Kubelet?

It's the master node which controls all the other nodes

It is responsible for creating replicas of stopped containers

Maintains the node count on master and checks if all the nodes are up and running

It is the node agent which is responsible for maintaining and monitoring pod health

30 / 30

What happens when we install docker? Please choose the correct option from the given statements.

Only docker host will be installed

Only docker client will be installed

Both docker host and docker client will not be installed automatically

Both docker host and docker client will be installed automatically

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