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RedHat EX280 Exam Syllabus Topics:

SectionObjectives
Topic 1: Security and Troubleshooting- Security management
  • 1. Manage SCC (Security Context Constraints)
    • 2. Configure authentication and authorization
      - Troubleshooting
      • 1. Diagnose cluster and application issues
        • 2. Analyze logs and events
          Topic 2: OpenShift Cluster Installation and Configuration- Cluster setup and installation verification
          • 1. Validate cluster health and components
            • 2. Install OpenShift clusters using installer-provisioned infrastructure
              Topic 3: Networking and Ingress- Cluster networking
              • 1. Troubleshoot network connectivity
                • 2. Configure routes and ingress resources
                  Topic 4: Cluster Administration- User and role management
                  • 1. Manage cluster roles and bindings
                    • 2. Configure users, groups, and RBAC
                      - Resource management
                      • 1. Manage projects, quotas, and limits
                        • 2. Deploy and manage applications
                          Topic 5: Storage and Persistence- Persistent storage configuration
                          • 1. Provision persistent volumes and claims
                            • 2. Configure storage classes

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                              RedHat Red Hat Certified Specialist in OpenShift Administration exam Sample Questions (Q11-Q16):

                              NEW QUESTION # 11
                              Use Secret in Monday Project
                              Task information Details:
                              Use the secret created earlier as environment variables in deployment monday .

                              Answer:

                              Explanation:
                              See the solution below in Explanation.
                              Explanation:
                              Solution:
                              * Switch to the correct project if needed:
                              oc project monday
                              * Inject environment variables from the secret:
                              oc set env deployment/monday --from=secret/magic
                              * Verify:
                              oc set env deployment/monday --list
                              oc describe deployment monday
                              Notes:
                              * The uploaded lab references secret/file-secret, but Task 8 clearly intends the secret to be named magic .
                              * In a real exam, match the actual secret name present in the cluster.
                              This task tests secret consumption by workloads through environment variable injection.


                              NEW QUESTION # 12
                              Create Secret with Name Magic in Math Project
                              Task information Details:
                              Create a secret named magic in the math project that stores MYSQL_ROOT_PASSWORD=redhat .

                              Answer:

                              Explanation:
                              See the solution below in Explanation.
                              Explanation:
                              Solution:
                              * Switch to the math project:
                              oc project math
                              * Create the secret:
                              oc create secret generic magic --from-literal=MYSQL_ROOT_PASSWORD=redhat
                              * Verify:
                              oc get secret magic
                              oc describe secret magic
                              Note:
                              * The uploaded lab text contains a typo --from-listeral; the valid option is --from-literal.
                              * The output in the lab also appears inconsistent. The intended secret name is magic .
                              This task checks secret creation and secure configuration data handling.


                              NEW QUESTION # 13
                              Create Resource Quota for Project Rocky
                              Task information Details:
                              Use project rocky and create a quota named rocky-quota with limits for CPU, memory, pods, services, replication controllers, and secrets.

                              Answer:

                              Explanation:
                              See the solution below in Explanation.
                              Explanation:
                              Solution:
                              * Ensure the project exists and switch to it:
                              oc new-project rocky
                              oc project rocky
                              * Create the quota:
                              oc create quota rocky-quota \
                              --hard=limits.cpu=2,limits.memory=1Gi,pods=3,services=6,replicationcontrollers=6,secrets=6
                              * Verify:
                              oc get resourcequota -n rocky
                              oc describe quota rocky-quota -n rocky
                              Notes:
                              * The lab text uses cpu=2,memory=1G and secret=6; in real OpenShift usage, the more reliable forms are limits.cpu, limits.memory, and secrets.
                              * If the exam specifically expects the exact resource names shown in the lab environment, use what the cluster accepts.
                              This task checks quota enforcement and namespace resource governance.


                              NEW QUESTION # 14
                              Configure a service account
                              Configure a service account in the apples project to meet the following requirements:
                              The name of the account is ex280sa
                              The account allows pods to be run as any available user

                              Answer:

                              Explanation:
                              See the solution below in Explanation.
                              Explanation:
                              Solution:
                              $ oc project apples
                              $ oc create sa ex280sa
                              $ oc adm policy add-scc-to-user anyuid -z ex280sa


                              NEW QUESTION # 15
                              Deploy an application
                              Deploy the application called rocky in the bullwinkle project so that the following conditions are true:
                              The
                              application is reachable at the following address: http://rocky.apps.domainXX.example.com The application produces output

                              Answer:

                              Explanation:
                              See the solution below in Explanation.
                              Explanation:
                              Solution:
                              $ oc project bullwinkle
                              $ oc get pods
                              $ oc get all | grep deploy
                              $ oc get nodes
                              $ oc describe nodes | grep -i taint
                              $ oc adm taint nodes worker0 key1=value1:NoSchedule-
                              $ oc adm taint nodes worker1 key1=value1:NoSchedule-
                              $ oc describe nodes | grep -i taint
                              $ oc get route
                              $ oc delete route rocky
                              $ oc expose svc rocky --hostname rocky.apps.domainxx.example.com
                              $ oc get route


                              NEW QUESTION # 16
                              ......

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