DO1-001: Deploy&Operate Engineer Associate Artisan

If you want to build a solid fundation to your career in DevOps, then you must begin your path of mastering the orchestration platform for automating the management, placement, scaling and routing of containers. Docker and Kubernetes help companies deploy and scale applications as necessary.
The opportunities for a promising job in DevOps become accessible by obtaining the Associate DevOps Deploy & Ops Engineer certification.
Attaining certified status means you possess the skills, knowledge, and abilities needed to use Docker and operate a Kubernetes cluster at an associate level.

Prerequisite

There are no prerequisites for Associate DevOps Deploy & Ops Engineer, but you should have a good understanding of the exam topics before taking the exam.

Format

Multiple choice, multiple answers

Type

Associate

Delivery Method

Testing center
Online proctored exam

Time

90 minutes to complete the exam

Cost

150 EUR

Language

Available in English

Exam Objectives

Part 1: Docker

Objective 1.1. Explain what containers are and what they are used for

Details
• Explain the benefits of using containers.
• Explain the differences between container and virtual machines.
• Explain the kernel-level changes required for container support.

Objective 1.2. Explain what Docker is

Details
• Explain the benefits of using Docker.
• Explain the Docker architecture.
• Differentiate between Docker CE and EE.
• Docker installation options

Objective 1.3. Docker images

Details
• Explain what images are.
• Differentiate between containers and images.
• Explain image layers and what Content Addressable Storage is.
• Explain where and how images can be stored.

Objective 1.4. The Docker CLI

Details
• Explain the most common Docker commands and their options.
• Explain how containers are created and managed using Docker commands.
• Explain the structure of a command.
• Explain how tab completion works.

Objective 1.5. Docker networking

Details
• Differentiate between the types of networks used by Docker .
• Explain how containers can communicate with other containers on the same Docker host.
• Explain how containers can communicate with other containers on other Docker hosts.
• Explain how a container can connect to a network.
• Explain how containers can publish ports.

Objective 1.6. Container data persistence

Details
• Explain the different types of storage used by containers.
• Explain the advantages and disadvantages of various types of container storage.
• Explain how volumes can be created and managed.
• Explain how the Docker logging system works.

Objective 1.7. Image Build Process. Dockerfiles.

Details
• Explain how a Dockerfile can be defined and used.
• Differentiate between Dockerfile instructions.
• Explain how an image can be built.
• Describe the best practices when creating and using Dockerfiles.
• Explain the usage of CMD and ENTRYPOINT – together and separately.

Objective 1.8. Explain Docker Swarm

Details
• Explain what Docker Swarm is.
• Explain how new nodes can be added to the Swarm.
• Differentiate between worker and manager nodes.
• Explain what services and stacks are.
• Differentiate between declarative and imperative mode of defining services.
• Differentiate between Docker Compose and Docker Stack.
• Explain what compose files are.

Part 2: Kubernetes

Objective 2.1. Kubernetes Architecture

Details
• Describe the main control plane components.
• Understand the main Kubernetes terminology.
• Understand the purpose of the kubelet.
• Understand the concept of multicontainer pods.

Objective 2.2. Explain Kubernetes installation and setup process

Details
• Explain installation steps and the use of kubeadm.
• Explain the purpose of instantiating a CNI.
• View all nodes in the cluster.

Objective 2.3. Explain the Kubernetes in the imperative mode

Details
• Explain the kubectl cli tool.
• Create, view and describe kubernetes resources.
• Attach to running pods and execute other processes.
• Understand the concept of restart policy.

Objective 2.4. Basic knowledge of Kubernetes declarative mode

Details
• Explain the difference between JSON and YAML.
• Explain the commands used to dry run a Kubernetes resource.
• Create Kubernetes resources in declarative mode.
• Use JSON tools to extract information from a kubernetes resource.

Objective 2.5. Deployments. Jobs.

Details
• Explain the purpose of labels and selectors.
• Explain the purpose of ReplicaSets.
• Explain the process of upscaling and downscaling.
• Explain the advantages of using deployments instead of replicasets.
• Explain the purpose of a job.

Objective 2.6. Kubernetes Data Persistence

Details
• Explain the difference between Docker volumes and Kubernets volumes.
• Understand the emptyDir, hostpath and NFS volume types.
• Describe the bounding process between a persistent volume and a persistent volume claim.
• Explain how the pods are decoupled from the persistent volume type by using persistent volume claims.