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| Section | Objectives |
|---|---|
| Topic 1: Implement Security and Access Control | - Configure RBAC (Role-Based Access Control) - Manage security contexts and service accounts - Implement network security policies - Manage secrets and configMaps - Understand OpenShift security features |
| Topic 2: Configure and Manage Networking | - Manage routes and ingress controllers - Configure network policies - Troubleshoot network connectivity issues - Understand OpenShift networking model |
| Topic 3: Deploy and Manage Applications | - Create and manage Deployments, Pods, and Services - Manage application builds and image streams - Implement labels, annotations, and selectors - Deploy applications using CLI and web console - Configure application routing and ingress |
| Topic 4: Monitor and Troubleshoot Clusters | - Manage cluster updates and upgrades - View and analyze cluster logs - Troubleshoot common issues - Monitor cluster health and metrics |
| Topic 5: Configure and Manage Storage | - Configure block and file storage - Provision and manage persistent storage - Understand storage classes and persistent volume claims |
| Topic 6: Understand and Navigate OpenShift Architecture | - Manage users and authentication providers - Describe the Red Hat OpenShift Container Platform architecture - Understand Kubernetes and OpenShift resource types - Navigate the web console and command-line interfaces |
| Topic 7: Resource Management and Quotas | - Configure resource quotas and limit ranges - Understand cluster resource management - Manage node selectors and tolerations |
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NEW QUESTION # 15
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 # 16
Autoscale of Pods
Task information Details:
Create an HPA for httpd with min=2 , max=9 , and CPU target 60% .
Set resource requests on the httpd deployment so autoscaling can function properly.
Answer:
Explanation:
See the solution below in Explanation.
Explanation:
Solution:
* Set resource requests on the deployment:
oc set resources deployment httpd --requests=cpu=50m,memory=100Mi
* Create the HPA:
oc autoscale deployment httpd --min=2 --max=9 --cpu-percent=60
* Verify:
oc get hpa
oc describe hpa httpd
oc get deployment httpd -o yaml
Why resource requests matter:
* HPA CPU utilization is calculated against requested CPU.
* Without requests, percentage-based autoscaling is incomplete or invalid.
This task focuses on autoscaling prerequisites and policy creation.
NEW QUESTION # 17
Create Project Template
Task information Details:
Generate the bootstrap project template, create it in openshift-config , update the cluster project configuration to use the template, and create a new project to validate it.
Answer:
Explanation:
See the solution below in Explanation.
Explanation:
Solution:
* Generate the default template:
oc adm create-bootstrap-project-template -o yaml > template.yaml
* Review and edit template.yaml if required.
* Create the template in openshift-config:
oc create -f template.yaml -n openshift-config
* Edit the cluster project configuration:
oc edit project.config.openshift.io/cluster
* Add or update:
spec:
projectRequestTemplate:
name: project-request
* Save and exit.
* Create a test project:
oc new-project test123
* Verify the template behavior:
oc get project test123 -o yaml
Notes:
* The uploaded lab text shows projects.config.openshift.io cluster-admin; the standard resource is project.
config.openshift.io/cluster.
This task checks cluster-wide customization of new-project creation behavior.
NEW QUESTION # 18
Create a CronJob test-cron
Task information Details:
Create service account jupiter .
Grant anyuid SCC and cluster- admin to it.
Update CronJob cron-test to use that service account.
Answer:
Explanation:
See the solution below in Explanation.
Explanation:
Solution:
* Switch to the project hosting the cronjob, if needed:
oc project cron-test
* Create the service account:
oc create sa jupiter
* Grant anyuid:
oc adm policy add-scc-to-user anyuid -z jupiter -n cron-test
* Grant cluster-admin:
oc adm policy add-cluster-role-to-user cluster-admin system:serviceaccount:cron-test:jupiter
* Update the cronjob:
oc patch cronjob cron-test -p '{"spec":{"jobTemplate":{"spec":{"template":{"spec":{"serviceAccountName":" jupiter"}}}}}}'
* Verify:
oc get cronjob cron-test -o yaml | grep serviceAccountName
Notes:
* The uploaded lab uses oc set sa cronjob.batch/cron-test jupiter, which is not the usual command form for CronJobs. Patching the pod template is the reliable method.
This task checks service account and privilege adjustments for scheduled workloads.
NEW QUESTION # 19
Scale an application manually
Manually scale the minion application in the gru project to a total of 5 replicas.
Answer:
Explanation:
See the solution below in Explanation.
Explanation:
Solution:
$ oc project gru
$ oc get pods
$ oc get all | grep deployment
$ oc scale --replicas=5 deployment.apps/minion
$ oc get pods
NEW QUESTION # 20
......
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