Jenkins Interview Questions and Answers – Part 6

What are the parts of the task lifecycle

• Execution
• Initialization, Configuration, Execution (Ans)
• Initialization, Configuration, Execution, Finalization
• Configuration, Execution

How do you declare a typed task?

• task copyImages (type: Copy) (Ans)
• Copy copyImages
• task copyImages (Copy)

In a multi project build which two files do I need to add to the top level project?

• build.gradle and build.settings
• multi.gradle and settings.gradle
• build.gradle and settings.gradle (Ans)
• build.gradle and settings.properties

What does the wrapper task do?

• Wraps up the code so that any exceptions are caught
• Wraps gradle so it can be used from an IDE such as Eclipse
• Installs an extra set of Java tasks to make testing easier
• Ensures that all developers use the same version of Gradle to build the code (Ans)

What is the syntax for filtering tests in gradle?

• add a test { filter {} } closure (Ans)
• build only the tests you want to run
• you have to run all the tests, you cannot filter
• add the test-filter plugin

What does taskA.finalizedBy taskB do?

• Causes taskB to run before taskA
• Nothing, this is not yet available in Gradle
• Causes taskB to run after taskA (Ans)
• Causes taskA and taskB to run in parallel

How do you declare a task?

• Task taskName (Ans)
• Task.withName taskName
• taskName: Task
• Task: taskName

When copying files you can use which method to replace text?

• expand (Ans)
• replace
• insert
• regex

How do you declare dependencies between tasks?

• taskA : taskB
• taskB.runsBefore taskA
• taskA.depends taskB
• taskA.dependsOn taskB (Ans)

Which of the following is valid gradle syntax to add a compile dependency on junit?

• compile name=junit version=4.1.2
• compile ‘junit:junit:4.1.12’ (Ans)
• compile ‘junit:4.12’
• compile ‘junit:version:4.1.12’

What is the syntax for defining a repository in Gradle?

• use jcenter()
• repositories { jcenter() } (Ans)
• repository: jcenter()
• repositories: jcenter()

When you call doLast on a task twice passing different closures what happens?

• Only the first closure is executed
• Neither closure is executed, it is an error
• Only the last closure is executed
• Both closures are executed (Ans)

How do you add the java plugin?

• apply java plugin
• apply plugin ‘java’ (Ans)
• java ‘plugin’
• Do nothing. The plugin is always enabled

If you use the gradle-testsets-plugin how do you add an integrationTest sourceset in gradle?

• testSets { integrationTest = ‘myDir’ }
• integrationTest { dirName=’myDir’}
• testSets { integrationTest { dirName=’myDir’ } } (Ans)
• testSets { dirName=’myDir’}

When you use the << syntax which method on the task is executed?

• last
• first
• doFirst
• doLast (Ans)

When you taskA.mustRunAfter taskB

• taskB always runs after
• taskA always runs after taskB
• taskA runs after taskB only if both tasks are scheduled to run (Ans)

If I want to run a java application which plugin do I use?

• java-runner
• java
• run
• application (Ans)

Rajesh Kumar

I’m Rajesh Kumar, a DevOps, SRE, DevSecOps, Cloud, and Platform Engineering expert passionate about sharing practical knowledge, real-world experiences, and industry best practices. I have worked at Cotocus and regularly write about technology, travel, investing, health, product reviews, and digital marketing through my various platforms.

I publish technical articles at DevOps School, travel stories at Holiday Landmark, stock market insights at Stocks Mantra, health and fitness guidance at My Medic Plus, product reviews at TrueReviewNow, and SEO and digital marketing strategies at Wizbrand.