Essential plugins list in Jenkins - Practice Problems & Coding Challenges

Challenge - 5 Problems

🧠 Conceptual

intermediate

Identify the plugin for pipeline as code

Which Jenkins plugin allows you to define build pipelines using code stored in your source repository?

A Mailer plugin

B Matrix Authorization Strategy plugin

C Git plugin

D Pipeline plugin

💡 Hint

Think about the plugin that helps automate complex build workflows with code.

The Pipeline plugin enables Jenkins to define build pipelines as code, typically using Jenkinsfile stored in the source repository.

💻 Command Output

intermediate

Output of Jenkins plugin list command

What is the output of the command 'jenkins-cli.jar list-plugins' when the 'Git plugin' is installed?

Jenkins

java -jar jenkins-cli.jar -s http://localhost:8080 list-plugins | grep git

A git 4.11.3 disabled

B git-plugin active

C git 4.11.3 active

D git-plugin 4.11.3 active

💡 Hint

Look for the exact plugin name and status format.

The output shows the plugin short name, version, and status. 'git 4.11.3 active' is the correct format.

❓ Configuration

advanced

Configure Jenkins to send email notifications

Which plugin must be installed and configured to enable Jenkins to send email notifications after builds?

A Mailer plugin

B Email Extension plugin

C Slack Notification plugin

D Build Timeout plugin

💡 Hint

This plugin provides basic email sending capabilities.

The Mailer plugin is the core plugin that enables Jenkins to send email notifications.

❓ Troubleshoot

advanced

Troubleshoot missing Git plugin error

A Jenkins job fails with error 'git command not found'. Which plugin is most likely missing or misconfigured?

A Credentials plugin

B Git plugin

C Pipeline plugin

D Matrix Authorization Strategy plugin

💡 Hint

This plugin integrates Git commands into Jenkins jobs.

The Git plugin provides Git SCM support. Without it, Jenkins cannot run git commands.

✅ Best Practice

expert

Select the essential plugin for secure credential management

Which Jenkins plugin is essential for securely storing and managing credentials used in pipelines and jobs?

A Credentials plugin

B Git plugin

C Mailer plugin

D Build Pipeline plugin

💡 Hint

This plugin handles secrets like passwords and tokens securely.

The Credentials plugin provides a secure way to store and use credentials in Jenkins.