Software development is not about writing code these days. Multiple languages, frameworks, architectures, and discontinuous interfaces between tools for each lifecycle stage creates huge complexities.
Docker facilitate and accelerates workflow, while giving developers the freedom to innovate with their choice of tools, application stacks, and deployment environments for each project.
To understand Docker – first you will have to understand the Containers.
Containers are a standard unit of software that packages up the code and all its related dependencies which helps to run applications quickly and reliably from one computing environment to another environment.
Docker has introduced and setted the industry standard for containers and fixed this “it works on my machine” headache for millions of developers worldwide. It empower developers to easily pack, ship, and run any application as a lightweight, portable, self-sufficient container, which can run virtually anywhere.
Docker is beneficial not only for developers, but for system administrators as well, which makes it an integral DevOps toolchains. For developers, it means that they can focus on writing code without worrying about the system that it will ultimately be running on.
For operations, Docker gives flexibility and potentially reduces the number of systems needed because of its small footprint and lower overhead.
It can get more applications running on the same hardware than other technologies
It makes it easy for developers to quickly create ready-to-run containered applications
It makes managing and deploying applications much easier
Today, almost all IT and cloud companies have adopted Docker. If you are talking about Docker Certification worth to have it not? Then go through this report – 2019 StackOverflow Survey
Stack Overflow’s annual Developer Survey is one of the most trusted and considered survey of the industry.
In the year 2019 they were published their annual Developer Survey reports which shows that:
Linux and Windows are the most common platforms but when it comes to container technologies Docker was the third most broadly used platform.
Linux was once again the most loved platform for development, and Docker is also highly liked that year by Developers. WordPress was the most dreaded development platform, and many developers were wanted to start developing using Docker and AWS.
This is one of the most demanding skills that companies are looking for right now.
Almost every company is either converting or migrating their applications into cloud-native apps or building new apps which are cloud-native. So, this is the perfect time for IT professionals to get Certified in Docker not only to prove their expertise in this field but also to strengthen their Docker skills.
Docker offers Docker Certified Associate (DCA) which contains 55 multiple choice questions and it should be completed in 90 minutes.
The Docker Certified Associate (DCA) exam cost you $195 and there is no free retake for this exam.
Where to register for Docker Certified Associate exam
Examity proctors this exam and you have to go their official website to register and schedule for the exam.
How to prepare or train yourself for Docker Certified Associate (DCA) certification exam
Learn and Practice, Practice and Practice is the only key to clear your certification easily. Practice. Practice and Practice. You need to practice a lot for this exam. Even though this is not a performance-based exam the more you practice, the easier for you to remember in the exam. Docker has published their set agenda or syllabus for the Docker Certified Associate exam. If you are motivated enough then you can go with self-learning option and if not then, there are numbers of platforms where you can take training for this exam. In DevOpsSchool.com we are also offering Docker Certified Associate (DCA) training which would help and enable our participants to grasp all the knowledge and necessary takes what is requires to clear the certifications easily.