Exam EX280 braindumps

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RedHat EX280 Exam Syllabus Topics:

Section	Weight	Objectives
Topic 1: Manage OpenShift Container Platform	20%	- Manage and configure clusters via web console and CLI 1. Create and delete projects 2. Monitor events, alerts and logs 3. Examine cluster status and resources - Work with container images 1. Locate, identify and examine images 2. Manage image streams and registries
Topic 2: 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
Topic 3: Configure Networking and Access	15%	- Expose services externally 1. Create and manage routes 2. Control ingress and network policies - Troubleshoot software-defined networking
Topic 4: Deploy and Manage Applications	25%	- Deploy applications from multiple sources 1. Use YAML manifests, templates and Helm charts 2. Use Kustomize and overlays - Manage application lifecycles 1. Update and rollback deployments 2. Manage replica sets and scaling
Topic 5: Work with Kubernetes Resources	25%	- Query, filter and modify resource attributes 1. Import/export and configure manifests 2. Use labels, selectors and annotations - Manage configuration data 1. Create and use Secrets 2. Create and use ConfigMaps

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

NEW QUESTION # 25
Managing Group
Task information Details:
Create the groups site-users and guest-users .
Add qwerty to guest-users .
Add harry and susan to site-users .
Grant edit to site-users on test .
Grant view to guest-users on demo .

Answer:

Explanation:
See the solution below in Explanation.
Explanation:
Solution:
* Create the groups:
oc adm groups new site-users
oc adm groups new guest-users
* Add users to groups:
oc adm groups add-users guest-users qwerty
oc adm groups add-users site-users harry susan
* Grant edit role on test to site-users:
oc policy add-role-to-group edit site-users -n test
* Grant view role on demo to guest-users:
oc policy add-role-to-group view guest-users -n demo
* Verify:
oc get groups
oc describe group site-users
oc describe group guest-users
oc get rolebinding -n test
oc get rolebinding -n demo
This task measures practical administration of OpenShift groups and project-scoped RBAC assignments.

NEW QUESTION # 26
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 # 27
Configure an application to use a secret
Configure the application called qed in the math project with the following requirements:
The application uses the secret previously created called: magic The secret defines an environment variable with name: DECODER_RING The application output no longer displays: Sorry, application is not configured correctly.

Answer:

Explanation:
See the solution below in Explanation.
Explanation:
Solution:
$ oc get all | grep deploy
$ oc set env --from=secret/magic deployment.apps/qed

NEW QUESTION # 28
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 # 29
Scale an application manually
Manually scale the minion application in the gru project to a total of 5 replicas.

Answer:

Explanation:
See the solution below in Explanation.
Explanation:
Solution:
$ oc project gru
$ oc get pods
$ oc get all | grep deployment
$ oc scale --replicas=5 deployment.apps/minion
$ oc get pods

NEW QUESTION # 30
......

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