Red Hat Certified OpenShift Administrator Free Sample Questions

Configure network security · Secure external and internal traffic using TLS certificates

1. A

   Unsecured Route

2. B

   Passthrough Termination

3. C

   Re-encrypt Termination

4. D

   Edge Termination

Enable developer self-service · Configure project quotas

1. A

   The cluster-wide ClusterResourceQuota has been exhausted for this user.

2. B

   The node running the pods has run out of CPU capacity.

3. C

   The LimitRange for the project requires a minimum CPU request that the pod does not meet.

4. D

   The project's ResourceQuota for CPU requests has been reached.

Manage authentication and authorization · Configure the HTPasswd identity provider for authentication

1. A

   Run 'oc adm policy add-scc-to-user' to link the file to the authentication operator.

2. B

   Create a Kubernetes Secret containing the htpasswd file data in the 'openshift-config' namespace, then edit the 'OAuth' cluster resource to reference this secret.

3. C

   Copy the file to the master nodes /etc/origin/master directory and restart the API server.

4. D

   Create a ConfigMap in the 'openshift-authentication' namespace and redeploy the router.

Declarative Resource Management · Work with Kustomize overlays

1. A

   Create a Helm chart in the production directory and use 'helm install' to reference the base kustomization.

2. B

   Edit the base deployment.yaml directly to use variables like ${REPLICAS} and ${IMAGE_TAG}, then pass these variables during 'oc apply'.

3. C

   Copy all YAML files from base to production directory and manually edit the values in the new files.

4. D

   Create a 'production' directory. In 'kustomization.yaml', add 'resources: [../base]' and a 'patches' list targeting the Deployment to update replicas and image.

Manage authentication and authorization · Modify user and group permissions

1. A

   oc create rolebinding alice-view --clusterrole=view --user=alice

2. B

   oc adm policy add-cluster-role-to-user view alice -n marketing

3. C

   oc policy add-user alice --role=read-only -n marketing

4. D

   oc adm policy add-role-to-user view alice -n marketing

Enable developer self-service · Configure cluster resource quotas

1. A

   Delete the LimitRange in the project to bypass the quota check.

2. B

   Increase the pod's memory limit in the deployment configuration.

3. C

   First increase the 'limits.memory' in the ResourceQuota 'quota-prod', then increase the pod's memory limit.

4. D

   Use the 'oc scale' command to reduce the number of replicas to 0, update the pod definition, and scale back up.