EX288 시험 - RedHat실제시험문제와 답 - 120문항

Question No : 1

How can you manage an application deployment using the OpenShift web console? (Choose two.)

A.Modify environment variables
B.Scale replicas up or down
C.Create custom monitoring agents
D.Rebuild the application image

정답:
Explanation:
The web console allows real-time scaling and environment variable management, making it convenient for managing deployments.

Question No : 2

Which resource ensures high availability for services in OpenShift?

A.Deployments
B.ReplicaSets
C.Routes
D.Pods

정답:
Explanation:
ReplicaSets maintain high availability by ensuring the desired number of pod replicas are running at all times.

Question No : 3

Which configuration file in Git specifies repository-level settings?

A..gitignore
B..gitconfig
C..gitsettings
D.config.yml

정답:
Explanation:
The .gitconfig file stores repository-level settings, including user information and aliases, to manage Git configurations effectively.

Question No : 4

How can you verify the status of a pod in OpenShift?

A.Use oc get pods
B.Use oc describe pod <name>
C.Use oc logs pod <name>
D.All of the above

정답:
Explanation:
Each command provides different insights into pod status: oc get pods shows overall status, oc describe pod provides details, and oc logs displays logs.

Question No : 5

What resource in OpenShift stores user credentials securely?

A.ConfigMaps
B.Secrets
C.Routes
D.Pods

정답:
Explanation:
Secrets store sensitive information like user credentials and API tokens securely, protecting them from unauthorized access.

Question No : 6

What happens if a liveness probe fails repeatedly in OpenShift?

A.The container is restarted
B.The pod is deleted
C.The deployment scales down
D.The service is removed

정답:
Explanation:
A failed liveness probe causes the container to restart, ensuring application recovery without affecting the overall pod.

Question No : 7

Which file must be present to automatically build an application using OpenShift Source-to-Image (S2I)?

A.READM
B.md
C.index.html
D.Dockerfile
E..s2i/environment

정답:
Explanation:
OpenShift's Source-to-Image (S2I) process requires a Dockerfile to define the application environment and build steps.

Question No : 8

What OpenShift feature allows controlling external traffic to applications?

A.Routes
B.Services
C.ReplicaSets
D.ConfigMaps

정답:
Explanation:
Routes expose services to external clients by creating URLs, providing controlled access to applications running in OpenShift.

Question No : 9

How can you rollback to a previous deployment version in OpenShift?

A.Use oc rollback <deployment>
B.Use oc undo deployment <name>
C.Use oc set rollback <deployment>
D.Use kubectl apply rollback

정답:
Explanation:
The oc rollback command restores a previous deployment configuration, reverting changes while maintaining application availability.

Question No : 10

What is the purpose of a readiness probe in a multi-container application? (Choose two.)

A.Verify the application is responsive
B.Ensure the container restarts automatically
C.Confirm readiness to handle traffic
D.Check the container's initial startup state

정답:
Explanation:
Readiness probes validate that the application is ready to handle incoming requests, ensuring smooth operation in multi-container setups.

Question No : 11

Which Git command creates a branch for a new feature?

A.git branch <branch-name>
B.git create <branch-name>
C.git checkout -b <branch-name>
D.git init <branch-name>

정답:
Explanation:
The git checkout -b command creates and switches to a new branch in one step, streamlining branch creation for new features.

Question No : 12

What is the primary purpose of the .gitignore file in Git?

A.To prevent untracked files from being deleted
B.To ignore specific files from being added to a repository
C.To restrict access to the repository
D.To track changes to ignored files

정답:
Explanation:
The .gitignore file specifies patterns for files that should not be added to the repository, keeping irrelevant or sensitive data out of version control.

Question No : 13

How do you push a local image to the OpenShift internal registry?

A.Use docker push
B.Use oc tag
C.Use oc image push
D.Use podman push

정답:
Explanation:
The podman push command pushes a local container image to the OpenShift internal registry, provided the registry login credentials are configured.

Question No : 14

Which of the following ensures secure image pulling from OpenShift's internal registry? (Choose two.)

A.Assigning pull secrets to service accounts
B.Configuring resource quotas
C.Creating ImageStreams
D.Setting proper access controls

정답:
Explanation:
Pull secrets and access controls ensure secure image pulling from the internal registry, safeguarding private images against unauthorized access.

Question No : 15

How can you trigger a manual build in OpenShift?

A.oc start-build <buildconfig>
B.oc trigger-build <buildconfig>
C.oc create build <buildconfig>
D.oc set build <buildconfig>

정답:
Explanation:
The oc start-build command manually triggers a build using the specified BuildConfig, bypassing any automated triggers.

RedHat EX288 시험