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What's the purpose of the RedHat EX280 Exam?
The Red Hat Certified Specialist in OpenShift Administration exam is the first step toward becoming a Red Hat Certified Specialist (RHCS). The RHCS program is designed to help IT professionals demonstrate their skills and knowledge in specific technologies. RedHat EX280 exam dumps will enhance your skills. As a result, you will be able to perform your job more efficiently. As a result, you will be able to get a higher salary. The Red Hat Certified Specialist in OpenShift Administration certification is also an important part of the Red Hat Certification Program. If you want to get a job as a Red Hat consultant, then you need to be a certified Red Hat consultant.
The RHCS in OpenShift Administration exam is designed to validate the ability to configure, deploy and maintain an enterprise-grade container application platform based on Red Hat OpenShift Container Platform 3.9.
In addition to the RHCS exam, you'll need to pass one of the following exams:
Red Hat Certified System Administrator (RHCSA)
Red Hat Certified Engineer (RHCE)
Reference: https://www.redhat.com/en/services/training/red-hat-certified-openshift-administrator-exam
RedHat EX280 Exam Cover Topics
The RedHat EX280 Exam topics are bellow:
Manage OpenShift Container Platform
Configure pod scheduling
Manage users and policies
Control access to resources
Configure networking components
What is the RedHat EX280 Exam?
RedHat EX280 exam is a certification that helps you to prove your expertise in RedHat OpenShift Administration. You will be able to demonstrate your ability to install, configure, and maintain a RedHat OpenShift environment. This certification demonstrates that the holder has a deep understanding of RedHat OpenShift Administration, and can install, configure and maintain a RedHat OpenShift environment.
To prepare for the RedHat EX280 exam, you need to have a clear understanding of RedHat OpenShift Administration and its components. The 1 step is to study for the exam. You should have a good understanding of the topics covered in the exam. You should also be familiar with RedHat OpenShift Administration and its components. You can do this by reading the RedHat OpenShift Administration course or by taking a RedHat OpenShift Administration training course. It's important to study hard and focus on what you are learning. It is important to study for the exam at least three hours a day. RedHat EX280 exam dumps will help you to pass the exam. Obviously, the more you study, the better your chances of passing.
RedHat EX280 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Cluster Administration | - Resource management
|
| Storage and Persistence | - Persistent storage configuration
|
| Networking and Ingress | - Cluster networking
|
| Security and Troubleshooting | - Security management
|
| OpenShift Cluster Installation and Configuration | - Cluster setup and installation verification
|
RedHat Red Hat Certified Specialist in OpenShift Administration Sample Questions:
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
Correct Answer:
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
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.
Correct Answer:
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.
Configure a secure route
Configure the oxcart application in the area51 project with the following requirements:
The application uses a route called oxcart
The application uses a CA signed certificate with the following subject fields:
/C=US/ST=NV/L=Hiko/O=CIA/OU=USAF/CN=classified.apps.domainxx.example.com The application is reachable only at the following address: https://classified.apps.domainxx.example.com The application produces output A utility script called newcert has been provided to create the CA signed certificate. You may enter the certificate parameters manually or pass the subject as a parameter.
Your certificate signing request will be uploaded to the CA where it will immediately be signed and then downloaded to your current directory.
Correct Answer:
See the solution below in Explanation.
Explanation:
Solution:
$ oc project area51
$ oc get pods
$ oc get all | grep deployment
$ oc get route
$ oc delete route oxcart
$ openssl genrsa -out ex280.key 2048
$ openssl req -new -key ex280.key -out ex280.csr -subj "/C=US/ST=NV/L=Hiko/O=CIA/OU=USAF
/CN=classified.apps.domainxx.example.com"
$ openssl x509 -req -in ex280.csr -signkey ex280.key -out ex280.crt
$ oc create route edge oxcart --service oxcart --key ex280.key --cert ex280.crt --hostname classified.apps.
domainxx.example.com
$ oc get route
$ oc get svc
Install Helm Chart
Task information Details:
Add the Helm repository do280-repo and install the example-app release from the specified chart.
Correct Answer:
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.
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