Which Jenkins feature allows you to run tests automatically every time a code change is pushed to the repository?
- Build Triggers
- Git Hooks
- Poll SCM
- Webhooks
The Build Triggers feature in Jenkins enables automatic test execution whenever a code change is pushed to the repository, ensuring continuous integration and rapid feedback on code changes.
How can Jenkins administrators monitor and audit user activities within the system?
- Configure Jenkins Audit Trail plugin
- Enable Jenkins logs
- Monitor system logs
- Use third-party audit tools
Jenkins administrators can monitor and audit user activities by configuring the Jenkins Audit Trail plugin. This plugin logs various events, providing insights into who did what and when within the Jenkins system.
To restore a Jenkins instance, you must have a backup of the Jenkins __________ directory.
- Config
- Data
- Home
- Plugins
To restore a Jenkins instance, you must have a backup of the Jenkins data directory. This directory contains all the crucial information about your Jenkins configuration, including jobs, builds, and plugins.
In Jenkins, a disaster recovery plan often includes regular snapshots of the ___________.
- Jenkins configuration
- Jenkins logs
- Jenkins master
- Jenkins workspace
In Jenkins, a disaster recovery plan often includes regular snapshots of the Jenkins configuration. This includes job configurations, system settings, and global configurations, which are crucial for restoring Jenkins to a functional state.
What is the advantage of using container-based agents in Jenkins for cloud deployments?
- Compatibility with all plugins
- Improved Network Performance
- Isolation and Scalability
- Simplicity and Ease of Management
The advantage of using container-based agents is isolation and scalability. Containers provide a lightweight and isolated environment for build jobs, making it easier to scale and manage resources in cloud deployments.
What is the primary purpose of a reporting plugin in Jenkins?
- Generating and displaying reports for build results
- Integrating with external databases
- Managing Jenkins configurations
- Triggering builds based on code changes
The primary purpose of a reporting plugin in Jenkins is to generate and display reports for build results. These plugins help visualize and analyze the outcome of builds, providing insights into the build performance and status.
Jenkins can be integrated with ___________ for advanced monitoring and performance analytics in a containerized setup.
- ELK Stack
- Grafana
- Nagios
- Prometheus
Jenkins can be integrated with Prometheus for advanced monitoring and performance analytics in a containerized setup. Prometheus collects and stores metrics, and Grafana is often used for visualizing these metrics in a user-friendly way.
In advanced Jenkins performance tuning, what is a strategy to handle high CPU usage by Jenkins?
- Configuring Jenkins with multiple masters
- Increasing Jenkins memory allocation
- Optimizing Jenkins plugins
- Scaling Jenkins horizontally
One strategy for handling high CPU usage is scaling Jenkins horizontally. This involves distributing the load across multiple Jenkins masters to improve performance.
What is an essential consideration when setting up CI/CD pipelines in Jenkins for multi-branch projects?
- Ignoring branch-specific configurations
- Isolating branches to prevent interference
- Minimizing parallelism to avoid conflicts
- Sharing a common workspace for all branches
An essential consideration is isolating branches to prevent interference. Each branch should have its dedicated resources and environment to avoid conflicts and ensure reliable CI/CD for multi-branch projects.
In Jenkins, what is the basic requirement for a project to be built automatically after each commit in a source code repository?
- Poll SCM
- Manual Trigger
- Scheduled Build
- Version Control Hook
The basic requirement for a project to be built automatically after each commit in a source code repository is to enable the "Poll SCM" option in the Jenkins job configuration. This allows Jenkins to check for changes at regular intervals.