Free CJE Jenkins Installation & Configuration Questions and Answers

Question 1

What is the minimum required Java version to install Jenkins?

Accepted Answer

Java 8

Answer

Java 6

Answer

Java 7

Answer

Java 5

Question 2

Which protocol is used by Jenkins for secure remote communication?

Accepted Answer

SSH

Answer

FTP

Answer

Telnet

Answer

HTTP

Question 3

Where does Jenkins store its configuration files by default?

Accepted Answer

JENKINS_HOME directory

Answer

/etc/jenkins

Answer

C:\Program Files\Jenkins

Answer

/var/lib/jenkins/config

Question 4

What is the purpose of the Jenkins update center?

Accepted Answer

To provide Jenkins core and plugin updates.

Answer

To update the operating system.

Answer

To update Java.

Answer

To update user credentials.

Question 5

How do you configure Jenkins to run on a different port?

Accepted Answer

Use the --httpPort flag when starting Jenkins.

Answer

Modify the port in Jenkins settings UI.

Answer

Change Java settings.

Answer

Edit /etc/network/interfaces.

Question 6

Which file contains Jenkins' startup options on Linux?

Accepted Answer

/etc/default/jenkins

Answer

/etc/init.d/jenkins

Answer

~/.jenkinsrc

Answer

/usr/local/jenkins/startup.conf

Question 7

What is the default username for Jenkins after initial installation?

Accepted Answer

No default username; use initial admin password.

Answer

admin

Answer

root

Answer

jenkins

Question 8

Which plugin is essential for source code management in Jenkins?

Accepted Answer

Git plugin

Answer

Docker plugin

Answer

Slack plugin

Answer

Credentials plugin

Question 9

How can Jenkins be installed on Windows?

Accepted Answer

Using a .msi installer

Answer

Using apt-get

Answer

Using yum

Answer

Compiling from source only