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CJE CloudBees Certified Jenkins Engineer (CJE) Free Practice Exam Questions (2025 Updated)

Prepare effectively for your CloudBees CJE Certified Jenkins Engineer (CJE) certification with our extensive collection of free, high-quality practice questions. Each question is designed to mirror the actual exam format and objectives, complete with comprehensive answers and detailed explanations. Our materials are regularly updated for 2025, ensuring you have the most current resources to build confidence and succeed on your first attempt.

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Total 186 questions

What's a benefit of a clean checkout over an incremental update?

A.

It ensures the working directory is clean and not tampered with

B.

None of these

C.

It's faster

D.

It ensures there are no mistakes

How do you setup the GitHub Plugin Git hook from a Project Configuration Perspective?

A.

Set the "Build Periodically" trigger, but you don't have to specify an interval

B.

None of these

C.

Set the "GitHub hook trigger for GITScm polling" trigger

D.

Set the "Poll scm" trigger, but you don't have to specify an interval

What interval syntax could I use to trigger a build 30 minutes after every hour?

A.

* * * * 30

B.

30 * * * *

C.

* * * H/30 *

D.

* 30 * * *

When would you use distributed builds?

A.

When you want to preserve resources on the master node

B.

When you want to simplify your architecture

C.

When you have few jobs and plenty of resources on your master

D.

When security isn't a concern

In Jenkins, a trigger commonly refers to a mechanism that automatically_________.

A.

updates plugins

B.

starts the build of a job

C.

sends notification once the build is completed

D.

detects code changes in the repository

Which of the following would correctly complete the sentence, "Continuous Integration is a of Continuous Delivery"? Choose 2 answers

A.

consolidation

B.

requirement

C.

process definition

D.

subset

E.

superset

Pipelines often require access to protected resources such as servers, databases, and SCMs. Without using an external credentials manager, which of the following provides the most secure centralized mechanism for managing the "secrets" that Jenkins requires to login/authenticate (for example: keys, tokens, passwords)?

A.

Store the secrets on the Jenkins master using the Credentials plugin.

B.

Include the secrets In the home directory of the Jenkins agent account.

C.

Store the secrets required in the SCM alongside the application source code.

D.

Embed secrets into the build and deployment scripts invoked by the job.

E.

Store the secrets as Node Properties for each agent definition.

What's a big priority of continuous integration?

A.

Automate only when necessary

B.

Making sure a manager approves every line of code

C.

Fixing broken builds

Making sure everyone gets to contribute the exact same amount

Your co-worker was installing a Jenkins instance and went home for the night. When they returned the next day they notice their machine had rebooted, the scrollback of the installation was unretrievable, and they've come to you for help. In what location will you need to look at it to retrieve the initialAdminPassword?

A.

/opt/jenkins/

B.

/var/lib/jenkins/secrets/

C.

/tmp/Jenkins/

D.

/usr/lib/jenkins/password/

You are using GitHub repository scanning (in a project of type "GitHub Organization") with the Pipeline lenkinsfile Project Recognizer. In this case, which repositories under the organization will have Multibranch projects automatically created for them?

A.

only repositories that contain a Jenkinsfile in all their branches

B.

only repositories that contain a Jenkinsfile in at least one branch

C.

all repositories that contain a Jenkinsfile in at least one branch or pull request

D.

all repositories

What's the difference between pushing and pulling code from a CI perspective?

A.

Pulling is more efficient.

B.

When the source informs the build system of a code change, that's pushing. When the build system asks if there are changes to the source code, that's pulling

C.

Pushing uses more resources.

D.

When the source informs the build system of a code change, that's pulling. When the build system asks if there are changes to the source code, that's pushing

You have a friend who wants fame and fortune from being a developer working with Jenkins. He wants to write code for it and doesn't know anything about it yet. He wants to know what language Jenkins is written in. You, of course, know the answer and are delighted to tell them. Which of the following do you tell them it's written in?

A.

.NET

B.

Ruby

C.

Python

D.

Java

What determines what can be seen in a "My View"?

A.

It shows items that match a filter regular expression.

B.

It shows all items configured in Jenkins.

C.

It shows all items a user has permission to view in Jenkins.

D.

None of these

What is Ant?

A.

A Java build tool

B.

None of these

C.

An acceptance testing platform

D.

A unit testing tool

One quality of an ideal build node K that it is_________.

A.

ephemeral and replaceable

B.

tailored to specific builds

C.

on-master

D.

static

What's an example of a cloud-based SCM?

A.

GitHub

B.

Atlassian BitBucket

C.

All of these

D.

AWS CodeCommit

A Freestyle job is configured to execute concurrent builds, and to only build on a specific agent (agent A) that has 4 executors. You observe that 2 Instances of the job are currently building while several others are waiting in the build queue. Which of the following could explain why the builds are waiting in the build queue?

A.

There are not enough idle executors available on agent A.

B.

Changes were made to this job's configuration while this Job had builds in the build queue.

C.

Each build in the build queue must be manually attached to an available executor.

D.

The "Execute concurrent builds if necessary option in the job configuration has reached Its user-defined maximum.

Why Is the performance of a Jenkins master Improved by using a distributed builds architecture?

A.

Because executors cannot be allocated on the master.

B.

Because executors offloaded onto build nodes are not performant.

C.

Because it prevents the CPU being overloaded during parallel polls.

D.

Because it prevents builds from overloading a master's CPU/memory.

E.

Because builds cannot be run In parallel on a master.

You can use Jenkins' database to manage users.

A.

True

B.

False

What directive do you use for a declarative pipeline?

A.

config {..}

B.

project {..}

C.

pipeline {..}

D.

test {..}

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Total 186 questions
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