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Quizzes > Quizzes for Business > Technology

DevOps Foundations Knowledge Test Quiz

Challenge yourself with a DevOps practice test

Difficulty: Moderate
Questions: 20
Learning OutcomesStudy Material
Colorful paper art depicting elements related to DevOps Foundations Knowledge Test Quiz

Looking to sharpen your DevOps skills? The DevOps Foundations Knowledge Test is a detailed 15-question practice quiz tailored for anyone wanting to evaluate their CI/CD, automation, and infrastructure understanding. Educators and self-learners can also explore the DevOps/Linux Command-Line Proficiency Quiz or dive into the Design Foundations Practice Quiz for further practice. Every question is fully editable in our intuitive editor, so you can adapt it to your needs. Check out more quizzes and get started today!

Which of the following is a core principle of DevOps?
Continuous integration and collaboration between teams
Manual, ad-hoc deployments
Strict separation between development and operations
Long release cycles without feedback
Continuous integration and collaboration between development and operations teams is fundamental to DevOps. This principle promotes rapid feedback and improves software quality by integrating code changes frequently.
What best describes Continuous Integration (CI)?
Merging code changes frequently with automated builds and tests
Maintaining infrastructure by hand
Writing code without peer review
Deploying applications manually to production
Continuous Integration involves merging developer work into a mainline branch frequently and running automated builds and tests. This practice reduces integration issues and provides fast feedback on code quality.
Which containerization platform is most commonly used for packaging applications in DevOps workflows?
Subversion
Jenkins
Docker
Puppet
Docker is widely used to create, deploy, and manage containerized applications in DevOps pipelines. It allows consistent environments across development, testing, and production.
Which tool is primarily used for version control in most DevOps workflows?
Git
Jenkins
Terraform
Ansible
Git is the most popular distributed version control system used to track changes in source code. It supports collaboration, branching, and merging, which are key practices in DevOps.
Which of the following is a popular Infrastructure as Code tool?
Git
Terraform
Kubernetes
Docker
Terraform is a widely used Infrastructure as Code tool that allows you to define and provision resources in a declarative configuration language. It enables consistent and repeatable infrastructure management.
What is the primary goal of Continuous Deployment in a CI/CD pipeline?
Automatically deploy code changes to production after passing tests
Run security scans without deployment
Only build artifacts and store them locally
Manually approve each release to staging
Continuous Deployment automates the release of code to production once it passes all automated tests and checks. This accelerates delivery and reduces manual intervention risk.
Which deployment strategy involves running two production environments and switching traffic between them?
Blue-green deployment
A/B testing
Canary deployment
Rolling update
Blue-green deployment keeps two identical environments (blue and green) and switches user traffic from the old environment to the new one. This approach minimizes downtime and simplifies rollbacks.
In the GitFlow branching model, which branch holds the production-ready code?
develop
master
feature
hotfix
In GitFlow, the master branch contains production-ready code and is used for releases. Other branches like develop and feature are used for ongoing development and integration.
Ansible playbooks are primarily written in what format?
XML
JSON
INI
YAML
Ansible playbooks are written in YAML because it is human-readable and supports complex data structures. This format makes it easy to define tasks and configurations declaratively.
In Terraform, what does the state file track?
Logs of previous deployments
Current resources managed by Terraform
Container images
User access credentials
Terraform's state file records the real-world resources it manages and their current configurations. This information is crucial for planning and applying incremental changes.
Which Kubernetes object ensures a specified number of pod replicas are running?
Namespace
Service
Deployment
ConfigMap
A Deployment in Kubernetes manages ReplicaSets to ensure a desired number of pod replicas are running and healthy. It also supports rolling updates and rollbacks.
A Kubernetes Service of type LoadBalancer is used to:
Assign persistent storage to pods
Store configuration data for pods
Expose pods externally through a cloud provider's load balancer
Link pods within the same namespace
A Service with type LoadBalancer provisions an external load balancer in supported environments. It routes external traffic directly to the service's pods.
In Jenkins, the pipeline as code is defined using:
Ansible Playbook
Kubernetes YAML
Jenkinsfile
Dockerfile
A Jenkinsfile contains the pipeline definition and syntax for Jenkins' Pipeline plugin. Storing it alongside source code ensures version control and traceability.
In Docker image builds, each instruction in a Dockerfile creates:
A separate container
A new layer in the image
An environment variable
A new network
Each Dockerfile instruction generates a new image layer, which can be cached and reused. This approach optimizes build times and storage usage.
What does idempotency mean in configuration management?
You must manually reset configuration after each run
Configuration changes randomly on each run
Applying the same configuration multiple times yields the same result
Only one run of the configuration executes
Idempotency ensures that running a configuration management task repeatedly does not change the system after the first application. This guarantees predictable and stable results.
Which Infrastructure as Code tool uses a declarative approach?
Terraform
Bash scripts
Python scripts
AWS CLI
Terraform uses a declarative language to define infrastructure, allowing you to specify desired state rather than step-by-step commands. This contrasts with imperative tools like Bash or AWS CLI scripts.
In Terraform, which backend type is commonly used to store state remotely and enable team collaboration?
S3 backend
Git backend
HTTP backend
Local backend
Using an S3 backend in Terraform stores the state file in an AWS S3 bucket, enabling remote storage and team collaboration. This setup also supports state locking with DynamoDB for concurrency control.
Which update strategy in a Kubernetes Deployment object ensures zero-downtime rolling updates?
Canary
Recreate
Blue-green
RollingUpdate
The RollingUpdate strategy incrementally replaces old pods with new ones while maintaining service availability. This ensures zero downtime by controlling pod update rates and health checks.
In a service mesh like Istio, which component handles the proxying of service-to-service traffic?
Mixer
Pilot
Galley
Envoy sidecar proxy
Envoy sidecar proxies are deployed alongside application pods to intercept and manage all inbound and outbound traffic. This design allows Istio to apply policies and telemetry without modifying application code.
How can you securely store sensitive variables in Ansible playbooks?
Relying solely on environment variables
Committing them in Git
Using Ansible Vault
Storing them in plain text
Ansible Vault encrypts sensitive data like passwords and keys within playbooks or variable files. This ensures that secrets remain protected even if version control is public or shared.
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Learning Outcomes

  1. Identify core DevOps principles and best practices
  2. Analyze continuous integration and delivery workflows
  3. Evaluate automation tools and infrastructure strategies
  4. Apply containerization and orchestration concepts
  5. Demonstrate version control and collaboration skills
  6. Master infrastructure as code implementation basics

Cheat Sheet

  1. Understand Core DevOps Principles - DevOps is all about teamwork, automation, and never-ending improvement with the end user in mind. By blending development and operations, you learn to deliver high-quality software faster and with fewer hiccups. Learn more
  2. Master Continuous Integration and Delivery (CI/CD) - CI/CD lets you merge code often and use automated pipelines for testing and deployment, so updates happen smoothly. Embracing these practices means fewer bugs, shorter release cycles, and always-ready software. Learn more
  3. Evaluate Automation Tools and Infrastructure Strategies - From Jenkins for builds to Terraform for provisioning and Ansible for configuration, the right tools supercharge your workflow. Automation brings consistency, speeds up deliveries, and frees you to focus on innovation. Learn more
  4. Apply Containerization and Orchestration Concepts - Docker packages your app plus its dependencies into neat, portable containers, so "it works on my machine" becomes a thing of the past. Then Kubernetes steps in to orchestrate those containers, scaling and healing them like a boss. Learn more
  5. Demonstrate Version Control and Collaboration Skills - Git tracks every change you make, letting teams branch, merge, and review code safely. Good branching strategies and pull request etiquette keep everyone in sync and your codebase clean. Learn more
  6. Master Infrastructure as Code (IaC) Implementation Basics - Writing infrastructure specs in code means your environments are reproducible, versioned, and reviewable. Tools like Terraform and Ansible turn ops tasks into code snippets you can test and share. Learn more
  7. Implement Continuous Testing Practices - Automated tests in your pipeline catch bugs early, giving you instant feedback and more confidence in each release. Continuous testing helps maintain high quality even as your codebase grows. Learn more
  8. Embrace Monitoring and Logging - Keeping an eye on system health and logs means you can spot issues before they affect users. With tools like Prometheus and the ELK Stack, you turn data into actionable insights. Learn more
  9. Understand DevOps Metrics - Track deployment frequency, lead time for changes, failure rates, and mean time to recover to measure your DevOps success. These metrics guide improvements and keep your delivery process on track. Learn more
  10. Foster a Collaborative DevOps Culture - Open communication, shared responsibilities, and a learning mindset fuel a winning DevOps environment. When teams celebrate wins and learn from setbacks together, innovation skyrockets. Learn more
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