EX280 Prüfungsressourcen: Red Hat Certified Specialist in OpenShift Administration exam & EX280 Reale Fragen

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RedHat EX280 Exam Syllabus Topics:

Section	Weight	Objectives
Topic 1: 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. Monitor events, alerts and logs 2. Create and delete projects 3. Examine cluster status and resources
Topic 2: Configure Networking and Access	15%	- Troubleshoot software-defined networking - Expose services externally 1. Create and manage routes 2. Control ingress and network policies
Topic 3: Work with Kubernetes Resources	25%	- Manage configuration data 1. Create and use ConfigMaps 2. Create and use Secrets - Query, filter and modify resource attributes 1. Use labels, selectors and annotations 2. Import/export and configure manifests
Topic 4: 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 YAML manifests, templates and Helm charts 2. Use Kustomize and overlays
Topic 5: 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

>> EX280 Fragen Antworten <<

EX280 Testengine - EX280 Prüfungsaufgaben

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RedHat Red Hat Certified Specialist in OpenShift Administration exam EX280 Prüfungsfragen mit Lösungen (Q13-Q18):

13. Frage
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.

Antwort:

Begründung:
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.

14. Frage
Install Helm Chart
Task information Details:
Add the Helm repository do280-repo and install the example-app release from the specified chart.

Antwort:

Begründung:
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.

15. Frage
Configure an identity provider
Configure your OpenShift cluster to use an HTPasswd identity provider with the following requirements:
The name of the identity provider is: ex280-htpasswd The name of the secret is: ex280-idp-secret The user account armstrong=indionce The user account collins=veraster The user account aldrin=roonkere The user account jobs=sestiver The user account wozniak=glegunge

Antwort:

Begründung:
See the solution below in Explanation.
Explanation:
Solution:
$ sudo yum install httpd-tools -y
$ htpasswd -c -B -b htpasswd-file-upload armstrong indionce
$ htpasswd -B -b htpasswd-file collins veraster
$ htpasswd -B -b htpasswd-file aldrin roonkere
$ htpasswd -B -b htpasswd-file jobs sestiver
$ htpasswd -B -b htpasswd-file wozniak glegunge
$ oc create secret generic ex280-idp-secret --from-file
htpasswd=htpasswd-file -n openshift-config
$ oc get oauth/cluster -o yaml > oauth.yaml
$ vim oauth.yaml
$
esc-- > type :set paste -- > enter -- > insert -- > then paste the content for correct indent pasting spec:
identityProviders:
- name: ex280-htpasswd mappingMethod: claim type: HTPasswd htpasswd:
fileData:
name: ex280-idp-secret
$ oc replace -f oauth.yaml
$ oc login -u armstrong -p indionce
$ oc login -u collins -p veraster
$ oc login -u aldrin roonkere
$ oc login -u jobs sestiver
$ oc login -u wozniak -p glegunge
#This below part of operation is completely optional and done just for handy login purpose
$ alias _kube="oc login -u kubeadmin -p ${kube_pass} ${api_url}"
$ alias _armstrong="oc login -u armstrong -p ${armstrong}
${api_url}"
$ alias _collins="oc login -u collins -p ${collins} ${api_url}"
$ alias _aldrin="oc login -u aldrin -p ${aldrin} ${api_url}"
$ alias _jobs="oc login -u jobs -p ${jobs} ${api_url}"
$ alias _wozniak="oc login -u wozniak -p ${wozniak} ${api_url}"
$ _armstrong;_armstrong;_collins;_aldrin;_jobs;_wozniak;

16. Frage
Use Secret in Monday Project
Task information Details:
Use the secret created earlier as environment variables in deployment monday .

Antwort:

Begründung:
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.

17. Frage
Start a Probe in Project Start
Task information Details:
Add a Liveness Probe to the deployment in project start using the Web Console.

Antwort:

Begründung:
See the solution below in Explanation.
Explanation:
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.

18. Frage
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