Docker Certified Associate
Mirantis (formerly Docker)
Complete guide to passing the Docker Certified Associate exam on your first attempt.
$195
~65%
2 years
Global
Mirantis (formerly Docker)
$95k-$140k
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Complete Overview
The Docker Certified Associate (DCA) certification validates your expertise in containerization technologies, specifically Docker and container orchestration. As containerization has become the standard for modern application deployment, Docker remains the foundational technology that every DevOps engineer, developer, and cloud professional should understand. This certification demonstrates your ability to work with Docker in enterprise environments, covering everything from basic container operations to complex orchestration with Docker Swarm. The exam tests your practical knowledge across six domains including image creation, orchestration, networking, storage, and security. Docker skills are fundamental to modern software development and deployment pipelines, CI/CD processes, and microservices architectures. Whether you're managing containers in development, deploying to production, or architecting container platforms, the DCA certification proves your competency. The certification is particularly valuable for professionals working with Kubernetes, as Docker fundamentals underpin container ecosystems. With containers being central to cloud-native development, this certification significantly enhances your marketability in the DevOps and cloud infrastructure job markets.
Why Get Docker Certified Associate Certified?
Docker is foundational to container technologies and cloud-native development
Containers are standard for modern application deployment
Required knowledge for Kubernetes and orchestration platforms
Strong demand across DevOps, development, and cloud roles
Validates practical, hands-on container skills
Industry-recognized credential from Docker Inc.
Exam Format & Structure
Duration
90 minutes
Questions
55 questions
Passing Score
65%
Question Types
- Multiple choice
- Multiple select
- Discrete option multiple choice
Delivery Method
Pearson VUE testing center or online proctored
Exam Domains & Topics
Complete Docker Swarm setup, manage nodes, deploy services, and ensure high availability.
Key Topics to Master:
- Docker Swarm setup
- Node management
- Service deployment
- Stacks and compose
- High availability
Create optimized images, manage registries, and implement image signing.
Key Topics to Master:
- Dockerfile best practices
- Multi-stage builds
- Image layers
- Registry operations
- Image signing
Install and configure Docker Engine, understand namespaces, cgroups, and drivers.
Key Topics to Master:
- Docker Engine installation
- Daemon configuration
- Namespaces and cgroups
- Storage drivers
- Logging drivers
Configure Docker networking including bridge, overlay, and DNS resolution.
Key Topics to Master:
- Network drivers
- Bridge networking
- Overlay networks
- DNS resolution
- Load balancing
Implement Docker security features including Content Trust, secrets, and RBAC.
Key Topics to Master:
- Docker Content Trust
- Security scanning
- Secrets management
- RBAC
- Namespaces isolation
Manage Docker storage including volumes, bind mounts, and storage drivers.
Key Topics to Master:
- Volume types
- Bind mounts
- tmpfs mounts
- Storage drivers
- Data persistence
Recommended Study Plan
- 1Install Docker and explore CLI commands
- 2Learn container lifecycle management
- 3Master Dockerfile creation and best practices
- 4Practice multi-stage builds
- 5Understand image layers and caching
- 1Study all network driver types
- 2Practice bridge and overlay network creation
- 3Understand DNS and service discovery
- 4Master volume types and use cases
- 5Practice bind mounts and tmpfs
- 1Set up Docker Swarm clusters
- 2Deploy services and stacks
- 3Practice rolling updates and rollbacks
- 4Learn Docker Content Trust
- 5Implement secrets management
- 1Take practice exams
- 2Review weak areas
- 3Complete hands-on scenarios
- 4Review enterprise features
- 5Final documentation review
Ready to pass Docker Certified Associate?
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Best Study Resources
Docker Documentation
DocumentationComprehensive official documentation covering all exam domains. Essential reference.
Free
Docker Study Guide
Official GuideOfficial preparation guide from Docker with exam objectives and topics.
Free
Docker Mastery (Udemy)
Video CourseComprehensive course by Bret Fisher covering all DCA topics with hands-on labs.
$15-20 (on sale)
Play with Docker
Hands-on LabsFree browser-based Docker playground for hands-on practice without local setup.
Free
Docker Deep Dive
BookIn-depth book by Nigel Poulton covering enterprise Docker concepts.
$30-40
Common Mistakes to Avoid
Focusing only on basic container commands
The exam heavily tests orchestration (25%). Master Docker Swarm: services, stacks, node management, and high availability concepts.
Ignoring security topics
Security is 15% and often overlooked. Understand Docker Content Trust, secrets, RBAC, and security scanning. These are enterprise features.
Not practicing multi-stage builds
Multi-stage builds are important for image optimization. Practice creating efficient Dockerfiles that minimize layer size and improve security.
Skipping networking concepts
Understand all network drivers: bridge, overlay, host, macvlan. Know when to use each and how DNS resolution works in Swarm.
Relying on Docker Compose alone
The exam tests Docker Swarm stacks, which use compose files but deploy differently. Understand docker stack deploy vs docker-compose up.
Not understanding storage drivers
Know the difference between storage drivers, volumes, bind mounts, and tmpfs. Understand when to use each for different scenarios.
Exam Day Tips
- 1
Read questions completely - note keywords like 'BEST', 'MOST', 'FIRST'
- 2
For orchestration questions, think about high availability
- 3
Security questions often involve Docker Content Trust or secrets
- 4
Remember the networking hierarchy: bridge < overlay < macvlan
- 5
Storage questions: volumes for persistence, tmpfs for sensitive data
- 6
Flag difficult questions and return to them
- 7
Consider production best practices for 'best approach' questions
- 8
Multi-select questions specify how many answers to choose
- 9
Ensure stable internet connection for online exam
- 10
Have valid ID ready for proctoring
Career Paths & Salary Ranges
DevOps Engineer
Container orchestration and CI/CD pipeline management
$90,000-150,000
Platform Engineer
Building container platforms for development teams
$100,000-160,000
Container Specialist
Focused expertise in container technologies
$95,000-145,000
Cloud Engineer
Managing containerized workloads in cloud environments
$85,000-140,000
Prerequisites & Requirements
- No formal prerequisites required
- 6+ months Docker experience recommended
- Basic Linux administration knowledge
- Understanding of networking concepts
- Exam fee: $195
- Valid government-issued photo ID required
Frequently Asked Questions
Is DCA still relevant with Kubernetes popularity?
Absolutely. Docker fundamentals underpin Kubernetes. Most K8s environments use Docker or containerd. Understanding Docker deeply makes you more effective with any container orchestration.
How much Swarm vs Kubernetes is on the exam?
The exam focuses on Docker Swarm, not Kubernetes. Orchestration domain (25%) tests Swarm services, stacks, and management. Docker's exam tests Docker technologies.
How long is certification valid?
The DCA certification is valid for two years. You'll need to recertify to maintain active status as Docker technologies evolve.
Is the exam hands-on or multiple choice?
It's a multiple choice exam without hands-on labs. However, questions test practical knowledge that requires hands-on experience to answer confidently.
Should I learn Docker Enterprise features?
Yes, the exam includes enterprise features like Docker Content Trust, UCP, and DTR concepts. While you don't need a license, understand how these features work.
How does DCA compare to CKA?
DCA focuses on Docker specifically including Swarm. CKA focuses on Kubernetes administration. Many professionals earn both as the skills complement each other.
Success Stories
“The Swarm orchestration section was heavily tested. Make sure you understand services, replicas, and rolling updates. Docker Deep Dive book was excellent.”
Jordan B.
DevOps Engineer
“I use Kubernetes daily but the DCA helped solidify Docker fundamentals. The security section was tricky - know Docker Content Trust well.”
Nina P.
Platform Engineer
“Play with Docker labs were invaluable for hands-on practice. The exam tests practical knowledge, not just theory. Practice building multi-stage Dockerfiles.”
Carlos M.
Cloud Engineer
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