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Certified Jenkins Engineer (CJE) Practice Exam

Certified Jenkins Engineer (CJE) Practice Exam


About Certified Jenkins Engineer (CJE) Exam

Attaining certified status means you possess the skills and hands-on experience necessary to implement and use Jenkins® Prepare for the Certified Jenkins Engineer exam and demonstrate your level of proficiency, skills and hands-on experience of using and implementing Jenkins. For Jenkins and CloudBees engineers, earning certification helps you prove a level of proficiency and skill. For managers, hiring Jenkins-certified or CloudBees-certified personnel provides assurance of a documented level of expertise for roles that require Jenkins or CloudBees skills.


Course Structure

This exam is comprised of 4 sections:


1. Key CI/CD/Jenkins Concepts


Continuous Delivery/Continuous Integration Concepts

◦ Define continuous integration, continuous delivery, continuous deployment

◦ Difference between CI and CD

◦ Stages of CI and CD

◦ Continuous delivery versus continuous deployment


Jobs

◦ What are jobs in Jenkins?

◦ Types of jobs

◦ Scope of jobs


Builds

◦ What are builds in Jenkins?

◦ What are build steps, triggers, artifacts, and repositories?

◦ Build tools configuration


Source

◦ What are source code management systems and how are they used?

◦ Cloud-based SCMs

◦ Jenkins changelogs

◦ Incremental updates v clean check out

◦ Checking in code

◦ Infrastructure-as-Code

◦ Branch and Merge Strategies


Testing

◦ Benefits of testing with Jenkins

◦ Define unit test, smoke test, acceptance test, automated verification/functional tests


Notifications

◦ Types of notifications in Jenkins

◦ Importance of notifications


Distributed Builds

◦ What are distributed builds?

◦ Functions of masters and agents


Plugins

◦ What are plugins?

◦ What is the plugin manager?


Jenkins Rest API

◦ How to interact with it

◦ Why use it?


Security

◦ Authentication versus authorization

◦ Matrix security

◦ Definition of auditing, credentials, and other key security concepts


Fingerprints

◦ What are fingerprints?

◦ How do fingerprints work?


Artifacts

◦ How to use artifacts in Jenkins

◦ Storing artifacts


Using 3rd party tools

◦ How to use 3rd party tools


Installation Wizard

◦ What is the Jenkins Installation Wizard?

◦ How to use the Wizard?

◦ Which configurations are covered by the Installation Wizard?


2. Jenkins usage (features and functionality)

This topic comprises approximately 23% of the exam. Questions cover the following topics:

Jobs

◦ Organizing jobs in Jenkins

◦ Parameterized jobs

◦ Usage of Freestyle/Pipeline/Matrix jobs


Builds

◦ Setting up build steps and triggers

◦ Configuring build tools

◦ Running scripts as part of build steps


Source Code Management

◦ Polling source code management

◦ Creating hooks

◦ Including version control tags and version information


Testing

◦ Testing for code coverage

◦ Test reports in Jenkins

◦ Displaying test results

◦ Integrating with test automation tools

◦ Breaking builds


Notifications

◦ Setup and usage

◦ Email notifications, instant messaging

◦ Alarming on notifications


Distributed Builds

◦ Setting up and running builds in parallel

◦ Setting up and using SSH agents, JNLP agents, cloud agents

◦ Monitoring nodes


Plugins

◦ Setting up and using Plugin Manager

◦ Finding and configuring required plugins


CI/CD

◦ Using Pipeline (formerly known as “Workflow”)

◦ Integrating automated deployment

◦ Release management process

◦ Pipeline stage behavior


Jenkins Rest API

◦ Using REST API to trigger jobs remotely, access job status, create/delete jobs


Security

◦ Setting up and using security realms

◦ User database, project security, Matrix security

◦ Setting up and using auditing

◦ Setting up and using credentials


Fingerprints

◦ Fingerprinting jobs shared or copied between jobs


Artifacts

◦ Copying artifacts

◦ Using artifacts in Jenkins

◦ Artifact retention policy


Alerts

◦ Making basic updates to jobs and build scripts

◦ Troubleshooting specific problems from build and test failure alerts

These online resources provide entry points to understanding the above topics:

◦ Distributed builds

◦ Post-initialization script

◦ Features controlled by system properties

◦ Parallelism and Distributed Builds with Jenkins


3. Building Continuous Delivery (CD) Pipelines

This topic comprises approximately 16% of the exam. Questions cover the following topics:


Pipeline Concepts

◦ Value stream mapping for CD pipelines

◦ Why create a pipeline?

◦ Gates within a CD pipeline

◦ How to protect centralized pipelines when multiple groups use same tools

◦ Definition of binary reuse, automated deployment, multiple environments

◦ Elements of your ideal CI/CD pipeline - tools

◦ Key concepts in building scripts (including security/password, environment information, etc.)


Upstream and downstream

◦ Triggering jobs from other jobs

◦ Setting up the Parameterized Trigger plugin

◦ Upstream/downstreamjobs


Triggering

◦ Triggering Jenkins on code changes

◦ Difference between push and pull

◦ When to use push vs. pull


Pipeline (formerly known as “Workflow”)

◦ Benefits of Pipeline vs linked jobs

◦ Functionalities offered by Pipeline

◦ How to use Pipeline

◦ Pipeline stage view


Folders

◦ How to control access to items in Jenkins with folders

◦ Referencing jobs in folders


Parameters

◦ Setting up test automation in Jenkins against an uploaded executable

◦ Passing parameters between jobs

◦ Identifying parameters and how to use them: file parameter, string parameter

◦ Jenkins CLI parameters


Promotions

◦ Promotion of a job

◦ Why promote jobs?

◦ How to use the Promoted Builds plugin


Notifications

◦ How to radiate information on CD pipelines to teams


Pipeline Multibranch and Repository Scanning

◦ Usage of Multibranch jobs

◦ Scanning GitHub and BitBucket Organization

◦ ScanningbasicSCMrepositories


Pipeline Global Libraries

◦ How to share code across Pipelines

◦ Usages of the Shared Libraries

◦ Interaction with Folders and Repository scanning

◦ Security and Groovy sandbox


4. CD-as-Code Best Practices

This topic comprises approximately 10% of the exam. Questions cover the following topics:

• Distributed builds architecture

• Fungible (replaceable) agents

• Master-agent connectors and protocol

• Tool installations on agents

• Cloud agents

• Traceability

• High availability


Exam Structure

  • The exam consists of 60 multiple-choice questions, divided into 4 sections, which will test your skills as a Jenkins Engineer.
  • Questions in sections 1–4 primarily cover questions about a "base" Jenkins installation, but knowledge of the "suggested" plugins will also be covered.
  • Candidates are expected to know the functionality/uses of these plugins but will not be tested on detailed usage. The "suggested" plugins are the default plugins installed by the "Setup Wizard" on a fresh new Jenkins installation.

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