String, boolean, and choice parameters in Jenkins - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is a String Parameter in Jenkins?

A String Parameter lets you enter any text value when starting a Jenkins job. It is useful for passing simple text inputs like names or versions.

beginner

How does a Boolean Parameter work in Jenkins?

A Boolean Parameter provides a checkbox that can be either true (checked) or false (unchecked). It is used to toggle options on or off in a job.

beginner

What is a Choice Parameter in Jenkins?

A Choice Parameter lets you select one option from a list of predefined values. It helps limit inputs to specific choices.

intermediate

How do you define a String Parameter in a Jenkins pipeline script?

Use the string step inside parameters block, for example:<br>

parameters {
  string(name: 'VERSION', defaultValue: '1.0', description: 'Enter version')
}

beginner

What is the default value of a Boolean Parameter if unchecked?

The default value is false when the checkbox is not checked.

Which Jenkins parameter type lets you enter free text?

A String Parameter

B Boolean Parameter

C Choice Parameter

D File Parameter

String Parameter allows free text input when starting a job.

What does a Boolean Parameter display in Jenkins?

A A dropdown list

B A file upload

C A text box

D A checkbox

Boolean Parameter shows a checkbox to select true or false.

How do you limit input to specific options in Jenkins parameters?

A Use Choice Parameter

B Use Boolean Parameter

C Use String Parameter

D Use Password Parameter

Choice Parameter restricts input to predefined options.

In a Jenkins pipeline, where do you define parameters?

A Inside <code>environment</code> block

B Inside <code>parameters</code> block

C Inside <code>stages</code> block

D Inside <code>steps</code> block

Parameters are defined inside the parameters block.

What is the default value of a Boolean Parameter if not checked?

A true

B null

C false

D undefined

Unchecked Boolean Parameter defaults to false.

Explain the differences between String, Boolean, and Choice parameters in Jenkins.

Think about how each parameter type collects input from the user.

Describe how to define a Boolean parameter in a Jenkins pipeline script.

Look for the syntax inside the parameters block.