RedHat EX188 real exam prep : Red Hat Certified Specialist in Containers

  • Exam Code: EX188
  • Exam Name: Red Hat Certified Specialist in Containers
  • Updated: Aug 15, 2026
  • Q&As: 955 Questions and Answers

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RedHat EX188 Exam Syllabus Topics:

SectionWeightObjectives
Troubleshoot and secure containerized applications30%- Diagnose and resolve issues
  • 1. Inspect running applications
    • 2. Connect to running containers for debugging
      - Apply security best practices
      • 1. Control access and permissions
        • 2. Manage network access and isolation
          Create and manage container images30%- Write and use Containerfile
          • 1. Define base images
            • 2. Add content and configure runtime settings
              • 3. Expose ports and set environment variables
                - Manage image lifecycle
                • 1. Secure images and registry access
                  • 2. Build, tag, and store images
                    • 3. Work with public and private registries
                      Run and manage containers with Podman40%- Deploy multi-container applications
                      • 1. Manage dependencies, secrets, and configuration
                        • 2. Define application stacks
                          - Run containers locally
                          • 1. Monitor logs and events
                            • 2. Start, stop, and inspect containers
                              • 3. Manage volumes and persistent data

                                RedHat Red Hat Certified Specialist in Containers Sample Questions:

                                1. What are the main methods for reducing the dimensionality of an image? (Multiple choice)

                                A) Denoising
                                B) Downsampling
                                C) Segmentation of Region of Interest
                                D) Feature Descriptor


                                2. The V component of the HSV color space represents the brightness (value) of the color. What is the value range?

                                A) 0 to 99
                                B) 0 to 100
                                C) 0 to 1
                                D) 1 to 100


                                3. How do you forcefully stop a running container?

                                A) podman halt <container>
                                B) podman stop <container>
                                C) podman kill <container>
                                D) podman terminate <container>


                                4. cv2.LUT (img, trans_table) function means using OpenCV's look up table function to modify the grayscale value of the image.

                                A) False
                                B) True


                                5. How do you run a container with read-only access to its filesystem?

                                A) podman run --rofs <image>
                                B) podman run --readonly <image>
                                C) podman run --secure <image>
                                D) podman run --no-write <image>


                                Solutions:

                                Question # 1
                                Answer: B,C,D
                                Question # 2
                                Answer: C
                                Question # 3
                                Answer: C
                                Question # 4
                                Answer: B
                                Question # 5
                                Answer: B

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