Exam Overview
The Red Hat Certified Specialist in Containers exam (EX188) assesses your ability to locate, customize, run, and manage containerized services in stand-alone environments, as well as your knowledge of container basics.
By passing this test, you will become a Red Hat Certified Specialist in Containers, which will count toward your Red Hat Certified Architect (RHCA®) certification.
Audience for this exam
- Administrators, architects, software developers, and anybody else who is
responsible for designing, managing, or using containers, including
those who wish to demonstrate their mastery of the core principles and
processes behind the use of containers in modern software, should take
this course.
- Software developers that want to containerize their apps.
- Administrators that are unfamiliar with container technologies and orchestration.
- Architects who are thinking about incorporating container technology into their software architectures.
- Engineers in charge of site dependability who are thinking about utilizing Kubernetes and Red Hat OpenShift.
Prerequisites for this exam
- Have completed Red Hat OpenShift Developer I: Introduction to Containers with Podman (DO188) or equivalent work experience
- Experience with a Linux terminal session, issuing operating system commands, and shell scripting is advantageous. It is encouraged, but not essential, to be a Red Hat Certified System Administrator (RHCSA).
Study points for the exam
To assist you in your preparation, the exam objectives listed below highlight the task areas that will be addressed in the exam.
You should be able to exhibit the following abilities and skills:
Podman can be used to implement images.
Understand and apply the FROM (base image concept) instruction.
Understand and apply the RUN command.
Understand and implement ADD instruction.
Understand and implement the COPY instruction.
Understand the distinction between ADD and COPY instructions.
Follow the WORKDIR and USER instructions.
Understand the concepts of security.
Understand the distinctions and applicability of CMD vs. ENTRYPOINT instructions.
Understand the ENTRYPOINT instruction with param.
recognize when and how to expose ports from a Containerfile.
Understand and apply image environment variables.
Recognize the ENV instruction.
Recognize container volume.
Create a data volume from a host directory.
Recognize the security and permissions requirements associated with this approach.
Understand the approach's lifecycle and cleanup requirements.
Control images
Understand the security of private registries.
Interact with a variety of registries.
Recognize and employ image tags
Images can be pushed and pulled from and from registries.
Back up an image with all of its layers and meta data rather than a container state.
Podman can be used to run containers locally.
Podman can be used to run containers locally.
Obtain container logs.
On the container host, pay attention to container events.
Podman inspect should be used.
Defining environmental parameters.
Make public applications available.
Obtain application logs.
Examine running applications.
Podman allows you to run multi-container applications.
Build application stacks
Recognize container dependencies
Managing Environmental Variables
Working with Confidential Information
Working with numbers
Working with settings
Containerized application troubleshooting
Understand the application resource description
Obtain application logs
Examine running applications
Connecting to containers that are already running
Configurations must persist after reboot without intervention, as with all Red Hat performance-based exams.
You may be required to work with one or more pre-written applications during the exam. You will not be required to modify application code, but you may need to use provided documentation in some cases to create a new deployment of a given application.
The Red Hat Certified Specialist in Containers certification demonstrates a professional's ability to deploy, manage, and troubleshoot containerized applications using Red Hat's container tools and technologies, such as Red Hat OpenShift.
Benefits of this certification include:
- Showcasing your skills in containerization and microservices to potential employers
- Improving your knowledge and understanding of containerization technologies
- Enhancing your ability to implement and manage container-based applications
- Improving your chances for career advancement and higher earning potential
As for job opportunities, professionals with this certification can expect to find roles such as:
- Container Engineer
- DevOps Engineer
- Systems Administrator
- Cloud Engineer
- Solutions Architect
- IT Operations
It is the best certification for those who are looking for jobs in containerization, cloud and devops.