EX280 Training For Exam | EX280 Practice Guide

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RedHat EX280 Exam Syllabus Topics:

Section	Weight	Objectives
Work with Kubernetes Resources	25%	- Manage configuration data 1. Create and use Secrets 2. Create and use ConfigMaps - Query, filter and modify resource attributes 1. Use labels, selectors and annotations 2. Import/export and configure manifests
Deploy and Manage Applications	25%	- Manage application lifecycles 1. Manage replica sets and scaling 2. Update and rollback deployments - Deploy applications from multiple sources 1. Use Kustomize and overlays 2. Use YAML manifests, templates and Helm charts
Manage Authentication and Authorization	15%	- Manage users, groups and permissions 1. Create/delete users and modify passwords 2. Assign roles and adjust access rights - Configure identity providers 1. Set up HTPasswd and other providers
Configure Networking and Access	15%	- Troubleshoot software-defined networking - Expose services externally 1. Control ingress and network policies 2. Create and manage routes
Manage OpenShift Container Platform	20%	- 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. Examine cluster status and resources 2. Create and delete projects 3. Monitor events, alerts and logs

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EX280 Practice Guide | Valid EX280 Practice Questions

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RedHat Red Hat Certified Specialist in OpenShift Administration exam Sample Questions (Q25-Q30):

NEW QUESTION # 25
Install Helm Chart
Task information Details:
Add the Helm repository do280-repo and install the example-app release from the specified chart.

Answer:

Explanation:
See the solution below in Explanation.
Explanation:
Solution:
* Add the repository:
helm
repo add do280-repo http://helm.ocp4.example.com/charts
* Refresh repositories:
helm repo update
* Install the chart:
helm install example-app do280-repo/etherpad
* Verify:
helm list
oc get all
Notes:
* The uploaded lab text appears to spell the chart name incorrectly as ehterpad.
* In practice, use the actual chart name published in the repo. If the lab repo truly contains the typo, follow the repo index result.
This task tests Helm repository management and application deployment.

NEW QUESTION # 26
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 # 27
Create Service Account in QED
Task information Details:
Switch to project qed .
Create service account project1-sa .
Grant the anyuid SCC to that service account.

Answer:

Explanation:
See the solution below in Explanation.
Explanation:
Solution:
* Switch to the project:
oc project qed
* Create the service account:
oc create serviceaccount project1-sa -n qed
* Grant the SCC:
oc adm policy add-scc-to-user anyuid -z project1-sa -n qed
* Verify:
oc get sa project1-sa -n qed
oc adm policy who-can use scc anyuid
Why this matters:
* anyuid allows containers to run with arbitrary user IDs when an application requires it.
* This is a common administrative task in OpenShift for third-party container images.
This task validates service account creation and SCC assignment.

NEW QUESTION # 28
Create a PV and PVC
Task information Details:
Create a PersistentVolume named landing-pv with 1Gi , ReadOnlyMany , NFS backend, and Retain reclaim policy.
Create a PersistentVolumeClaim named landing-pvc requesting 1Gi , ReadOnlyMany , and storage class nfs2 .

Answer:

Explanation:
See the solution below in Explanation.
Explanation:
Solution:
* Create landing-pv.yaml:
apiVersion: v1
kind: PersistentVolume
metadata:
name: landing-pv
spec:
capacity:
storage: 1Gi
accessModes:
- ReadOnlyMany
nfs:
path: /open001
server: 192.168.2.2
persistentVolumeReclaimPolicy: Retain
* Apply it:
oc apply -f landing-pv.yaml
* Create landing-pvc.yaml:
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
name: landing-pvc
spec:
accessModes:
- ReadOnlyMany
resources:
requests:
storage: 1Gi
storageClassName: nfs2
* Apply it:
oc apply -f landing-pvc.yaml
* Verify:
oc get pv
oc get pvc
oc describe pv landing-pv
oc describe pvc landing-pvc
This task validates persistent storage provisioning and claim binding concepts.

NEW QUESTION # 29
Configure a service account
Configure a service account in the apples project to meet the following requirements:
The name of the account is ex280sa
The account allows pods to be run as any available user

Answer:

Explanation:
See the solution below in Explanation.
Explanation:
Solution:
$ oc project apples
$ oc create sa ex280sa
$ oc adm policy add-scc-to-user anyuid -z ex280sa

NEW QUESTION # 30
......

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