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RedHat EX280 Exam Syllabus Topics:

SectionWeightObjectives
Topic 1: Manage OpenShift Container Platform20%- Work with container images
  • 1. Manage image streams and registries
    • 2. Locate, identify and examine images
      - Manage and configure clusters via web console and CLI
      • 1. Create and delete projects
        • 2. Examine cluster status and resources
          • 3. Monitor events, alerts and logs
            Topic 2: Work with Kubernetes Resources25%- Query, filter and modify resource attributes
            • 1. Import/export and configure manifests
              • 2. Use labels, selectors and annotations
                - Manage configuration data
                • 1. Create and use Secrets
                  • 2. Create and use ConfigMaps
                    Topic 3: Deploy and Manage Applications25%- Deploy applications from multiple sources
                    • 1. Use Kustomize and overlays
                      • 2. Use YAML manifests, templates and Helm charts
                        - Manage application lifecycles
                        • 1. Manage replica sets and scaling
                          • 2. Update and rollback deployments
                            Topic 4: Manage Authentication and Authorization15%- Configure identity providers
                            • 1. Set up HTPasswd and other providers
                              - Manage users, groups and permissions
                              • 1. Create/delete users and modify passwords
                                • 2. Assign roles and adjust access rights
                                  Topic 5: Configure Networking and Access15%- Expose services externally
                                  • 1. Control ingress and network policies
                                    • 2. Create and manage routes
                                      - Troubleshoot software-defined networking

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                                      RedHat Red Hat Certified Specialist in OpenShift Administration exam Sample Questions (Q18-Q23):

                                      NEW QUESTION # 18
                                      Configure an application to use a secret
                                      Configure the application called qed in the math project with the following requirements:
                                      The application uses the secret previously created called: magic The secret defines an environment variable with name: DECODER_RING The application output no longer displays: Sorry, application is not configured correctly.

                                      Answer:

                                      Explanation:
                                      See the solution below in Explanation.
                                      Explanation:
                                      Solution:
                                      $ oc get all | grep deploy
                                      $ oc set env --from=secret/magic deployment.apps/qed


                                      NEW QUESTION # 19
                                      Configure project permissions
                                      Configure your OpenShift cluster to meet the following requirements: The following projects exist:
                                      apollo manhattan gemini bluebook titan
                                      The user account armstrong is an administrator for project apollo and project gemini The user account wozniak can view project titan but not administer or delete it

                                      Answer:

                                      Explanation:
                                      See the solution below in Explanation.
                                      Explanation:
                                      Solution:
                                      $ oc new-project apollo
                                      $ oc new-project manhattan
                                      $ oc new-project gemini
                                      $ oc new-project bluebook
                                      $ oc new-project titan
                                      $ oc adm policy add-role-to-user admin armstrong -n apollo
                                      $ oc adm policy add-role-to-user admin armstrong -n gemini
                                      $ oc adm policy add-role-to-user view wozniak -n titan


                                      NEW QUESTION # 20
                                      Scale an application automatically
                                      Automatically scale the hydra application deployment configuration in the lerna project with the following requirements:
                                      Minimum number of replicas: 6 Maximum number of replicas: 9
                                      Target average CPU utilization: 60 percent Container CPU resource request: 25m Container CPU resource limit: 100m

                                      Answer:

                                      Explanation:
                                      See the solution below in Explanation.
                                      Explanation:
                                      Solution:
                                      $ oc project lerna
                                      $ oc get pods
                                      $ oc get all | grep deployment
                                      $ oc autoscale deployment.apps/hydra --max=9 --min=6 --cpu-percent=60
                                      $ oc get hpa
                                      $ oc set resources deployment.apps/hydra --limits=cpu=100m -- requests=cpu=25m
                                      $ oc describe deployment.apps/hydra | grep Limits -A3


                                      NEW QUESTION # 21
                                      Configure quotas
                                      Configure your OpenShift cluster to use quotas in the manhattan project with the following requirements:
                                      The name of the ResourceQuota resource is: ex280-quota
                                      The amount of memory consumed across all containers may not exceed 1Gi
                                      The total amount of CPU usage consumed across all containers may not exceed
                                      2 full cores
                                      The maximum number of replication controllers does not exceed 3 The maximum number of pods does not exceed 3 The maximum number of services does not exceed 6

                                      Answer:

                                      Explanation:
                                      See the solution below in Explanation.
                                      Explanation:
                                      Solution:
                                      $ oc project manhattan
                                      $ oc create quota ex280-quota -- hard=memory=1Gi,cpu=2,pods=3,services=6,replicationcontrollers=3
                                      $ oc get resourcequota


                                      NEW QUESTION # 22
                                      Configure a secret
                                      Configure a secret in the math project with the following requirements: The name of the secret is: magic The secret defines a key with name: decoder_ring The secret defines the key with value:
                                      XpWy9KdcP3Tr9FFHGQgZgVRCKukQdrQsbcl0c2ZYhDk=

                                      Answer:

                                      Explanation:
                                      See the solution below in Explanation.
                                      Explanation:
                                      Solution:
                                      $ oc project math
                                      $ oc create secret generic magic --from-literal key=decoder_ring --from- literal value=XpWy9KdcP3Tr9FFHGQgZgVRCKukQdrQsbcl0c2ZYhDk=
                                      $ oc get secret -n math


                                      NEW QUESTION # 23
                                      ......

                                      The Red Hat Certified Specialist in OpenShift Administration exam (EX280) web-based practice test is compatible with these browsers: Chrome, Safari, Internet Explorer, MS Edge, Firefox, and Opera. This Red Hat Certified Specialist in OpenShift Administration exam (EX280) practice exam does not require any software installation as it is web-based. It has similar specifications to the RedHat EX280 desktop-based practice exam software, but it requires an internet connection.

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