There are many certifications and courses available on the market. Docker is the most popular and most beneficial course. The main driver of rising demand is Docker’s use in enterprises. The most important aspect of software conveyance has been changed by Docker container, which is a concept of modernization. It is important to remember the key topics and points that are covered in the course when learning about cloud computing. Another popular and reliable certification is the Docker Certified Associate, which was formerly Docker Certified Associate. A certification can lead to both a significant increase in earning and job prospects. Nearly 70% of people agree that certification has increased their earning potential, and 84% have experienced better job prospects since becoming certified. Let’s learn more about the exam.
About Docker Certified Associate
The Docker Certified Associate exam is highly in demand in the IT industry. Also, Docker facilities are highly sought after, and theDocker Certified Associate (DCA) examis designed to prove that skillset with real-world questions created by experienced Docker practitioners.Further, the skills and knowledge this exam measures are obtained from an understanding of the jobs of current Docker users.
Docker Certification is a certification that you have passed the Docker Certified Associate exam. This will give you a reputation for your Docker skills. The innovation of Docker container has also changed the way software conveyance works. This certification will allow you to use Docker’s various features. This certification will also improve your technology skills for installing and configuring Docker.
Skills required
These skills and knowledge are required for the exam.
First, years of Docker experience
Secondly, Exposure To Docker Enterprise Edition
Also, experience with container security
Further, you can also experience at least one cloud provider
Understanding Docker Best Practices
Furthermore, Experience with configuration management tools
Finally, experience with Linux and/or Windows Server
Exam Format
The Docker Certified Associate exam consists of 55 questions that must be completed in 90 minutes. It is important to manage your time. It also advised that you should spend no more than 30 seconds per question, as there are 60 questions. If you complete your exam in 60 minutes, you still have 30 minutes to revise your answers and recheck them.
There are many types of questions on the exam, including short answers, multiple-choice and mark review. You can start with the case study questions because there are so many types of questions. They are the most time-consuming. The next step is to choose between short answers and multiple-choice. This examination can be purchased online for USD $195 or Euro EUR175 and costs USD $195. The best thing about the examination is that you can view the results immediately.
Course outline
It is important to be familiar with the topics and domains that the exam covers. These are the objectives that must be covered and learned in order to pass the exam.
Domain 1: Orchestration 25%
Setup a swarm mode cluster with managers and worker nodes.
Describe the differences between running an enterprise container and running a service.
Demonstrate steps for locking a swarm of bees
Expand the instructions for running individual containers into running services in a swarm
Interpret the output of “docker inspect” commands
Convert an application deployment to a stack file by using a YAML compose with “dockerStack deploy”
Manage a steady stream of services
Increased number of replicas
Illustration of a global vs. replicated service
Mount volumes
Add networks, publish ports
Identify the steps required to troubleshoot a service that isn’t being deployed.
To show the placement of tasks, use node labels
Imagine how a Dockerized app communicates with legacy systems
Paraphrase the importance quorum in a cluster of swarms
Demonstrate the use of templates with “docker Service Create”
Domain 2: Image Creation and Management, and Registry: 20%
Describe Dockerfile options(add, copy, volumes, expose, entrypoint, etc)
Show the main parts of a Dockerfile
Show examples of how to create a Dockerfile image that is efficient
To manage images, use CLI commands like list, delete, prune and rmi.
Use filter and format to inspect images and report on specific attributes
Demonstrate the ability to tag an image
Use a registry to store images
Display layers of a Docker Image
To create a Docker image, you can apply a file
Modify an image to one layer
Describe the working of image layers
Not an architect, but a registry.
Log into a registry
Use search in a registry
Tag an image
Send an image to a registry
Sign an image into a registry
Take an image from a registry
Describe the process of image deletion
Remove an image from a registry
Domain 3: Installation & Configuration: 15%
Demonstrate your ability to upgrade Docker’s engine
Complete repo setup, selection of a storage driver, and installation of Docker engine across multiple platforms
Configure logging drivers (splunk, journald, etc)
Configure swarm, add managers, and set up backup schedule
Manage user teams and create users
To troubleshoot installation problems without assistance, interpret errors
Before you install, make sure to outline the size requirements.
Understanding namespaces, cgroups and configuration of certificates
To ensure that a Docker daemon has access to i, use certificate-based client/server authentication