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| Section | Objectives |
|---|---|
| Topic 1: Security and Troubleshooting | - Troubleshooting
|
| Topic 2: Storage and Persistence | - Persistent storage configuration
|
| Topic 3: OpenShift Cluster Installation and Configuration | - Cluster setup and installation verification
|
| Topic 4: Networking and Ingress | - Cluster networking
|
| Topic 5: Cluster Administration | - User and role management
|
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NEW QUESTION # 14
Manage Cluster Project and Permission
Task information Details:
Create projects apollo , test , and demo .
Grant bob the cluster-admin role.
Prevent ordinary authenticated users from self-provisioning projects.
Allow john to create projects.
Give natasha view-only access to test and apollo .
Give armstrong admin access to apollo .
Remove the kubeadmin user secret.
Answer:
Explanation:
See the solution below in Explanation.
Explanation:
Solution:
* Create the projects:
oc new-project apollo
oc new-project test
oc new-project demo
* Grant cluster-admin to bob:
oc adm policy add-cluster-role-to-user cluster-admin bob
* Disable normal self-provisioning for authenticated users:
oc adm policy remove-cluster-role-from-group self-provisioner system:authenticated:oauth
* Allow john to self-provision:
oc adm policy add-cluster-role-to-user self-provisioner john
* Give natasha view access in test and apollo:
oc policy add-role-to-user view natasha -n test
oc policy add-role-to-user view natasha -n apollo
* Give armstrong admin in apollo:
oc policy add-role-to-user admin armstrong -n apollo
* Remove kubeadmin secret:
oc delete secret kubeadmin -n kube-system
* Verify permissions:
oc adm policy who-can create projectrequests
oc describe rolebinding.rbac -n apollo
oc describe rolebinding.rbac -n test
This task tests core OpenShift administration around project lifecycle control, cluster-level RBAC, and decommissioning default bootstrap credentials.
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
Create Secure Route in Quart Project
Task information Details:
Create an edge route named htquart for service httpd , using the specified hostname and TLS certificate/key files.
Answer:
Explanation:
See the solution below in Explanation.
Explanation:
Solution:
* Switch to the quart project:
oc project quart
* Create the secure route:
oc create route edge htquart \
--service=httpd \
--hostname=quart.apps.ocp4.example.com \
--cert=./req.crt \
--key=./req.key
* Verify:
oc get route htquart
oc describe route htquart
* Test resolution and access if DNS is available:
curl -k https://quart.apps.ocp4.example.com
This task checks route exposure, TLS termination, and secure ingress administration.
NEW QUESTION # 17
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 # 18
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 # 19
......
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