Jenkins Jenkins Installation and Configuration

Question 1

What is the default port Jenkins runs on after a fresh installation?

Accepted Answer

8080

Answer

8443

Answer

9090

Answer

3000

Question 2

Which file contains the main Jenkins configuration settings?

Accepted Answer

config.xml

Answer

jenkins.xml

Answer

settings.xml

Answer

jenkins.properties

Question 3

What is the JENKINS_HOME environment variable used for?

Accepted Answer

To define the root directory where Jenkins stores all its data

Answer

To specify the Java installation path

Answer

To set the Jenkins server URL

Answer

To configure the admin user home

Question 4

Which Java version is the minimum requirement for Jenkins LTS 2.x?

Accepted Answer

Java 11

Answer

Java 8

Answer

Java 17

Answer

Java 21

Question 5

What is the purpose of the Jenkins initialAdminPassword file?

Accepted Answer

It provides the one-time setup password needed to unlock Jenkins for the first time

Answer

It stores hashed passwords for all users

Answer

It contains the Jenkins API token

Answer

It defines the default admin credentials

Question 6

Which command is used to restart Jenkins from the CLI without rebooting the server?

Accepted Answer

curl http://localhost:8080/restart

Answer

jenkins --restart

Answer

service jenkins reload

Answer

jenkins service restart