EX280 Sample Questions Answers

Solution:

Open the Web Console.

Switch to project start .

Navigate to: Workloads → Deployments

Select the target deployment.

Click the action menu and choose: Add Health Checks

Select Liveness Probe .

Configure the appropriate probe type:

HTTP

TCP

or Command

Enter the required endpoint or command based on the application.

Save the configuration.

Verify the deployment updates successfully and the pod status remains healthy.

CLI alternative if needed:

oc set probe deployment/ < deployment-name > --liveness --get-url=http://:8080/ --initial-delay-seconds=10

This task measures health-check configuration for workload self-recovery.

Solution:

$ oc adm policy add-cluster-role-to-user cluster-admin jobs

$ oc adm policy remove-cluster-role-from-group self-provisioner

system:authenticated:oauth

$ oc adm policy add-cluster-role-to-user self-provisioner wozniak

$ oc delete secret kubeadmin -n kube-system

Solution:

$ oc project gru

$ oc get pods

$ oc get all | grep deployment

$ oc scale --replicas=5 deployment.apps/minion

$ oc get pods

Solution:

$ vim limit.yaml

# Edit the yaml file like below mentioned

apiVersion: "v1" kind: "LimitRange" metadata:

name: "resource-limits" spec:

limits:

- type: "Pod"

max:

cpu: "500m" memory: "300Mi"

min:

cpu: "10m" memory: "5Mi"

- type: "Container" max:

cpu: "500m" memory: "300Mi"

min:

cpu: "10m" memory: "5Mi"

defaultRequest: cpu: "100m" memory: "100Mi"

$ oc create -f limit.yaml --save-config -n bluebook

$ oc describe limitranges -n bluebook

Solution:

$ oc project apples

$ oc create sa ex280sa

$ oc adm policy add-scc-to-user anyuid -z ex280sa

Solution:

Run must-gather:

oc adm must-gather

Confirm the directory created, usually something like:

ls

Archive the directory:

tar -cvzf system10-4ktjl-l4kj5l-lk45j.tar.gz must-gather.local.*

Verify:

ls -lh *.tar.gz

Notes:

The lab text shows a tar command without source paths. A valid tar command must include the source directory or files.

Use the actual must-gather output directory generated in your environment.

This task validates support-data collection and cluster diagnostics handling.