QuizApi - Expert-Level OpenShift Quiz: Test Your Knowledge on etcd, Keycloak, Docker, ConfigMap, and More

Question 1

Correct Answers: 1/4

What is the primary role of etcd in an OpenShift cluster?

To control access to the API server

To handle network policies

To store and maintain cluster configuration and state data

To manage pod scheduling

Question 2

Correct Answers: 1/4

Which command in OpenShift would you use to add a label to a pod?

oc attach label pod <pod-name> <label-key>=<label-value>

oc set label pod <pod-name> <label-key>=<label-value>

oc label pod <pod-name> <label-key>=<label-value>

oc add label pod <pod-name> <label-key>=<label-value>

Question 3

Correct Answers: 1/4

How can Keycloak roles be mapped to OpenShift roles for access control?

Using API permissions

Through SAML assertions

By setting up LDAP attributes

By creating a Client Role Mapper

Question 4

Correct Answers: 1/2

What is the role of kube-apiserver and kube-scheduler?

The kube – apiserver follows the scale-out architecture and, is the back-end of the master node control panel.

The kube – apiserver follows the scale-out architecture and, is the front-end of the master node control panel.

Question 5

Correct Answers: 1/4

How does OpenShift manage image versioning within an ImageStream?

Each new version is stored with an incremented numerical tag

Each new image push creates a new image tag based on the SHA hash

ImageStream uses immutable tags for each version

OpenShift overwrites the latest tag with new versions

Question 6

Correct Answers: 1/4

Which Keycloak token is used by OpenShift to validate a user's identity during login?

Bearer Token

ID Token

Refresh Token

Access Token

Question 7

Correct Answers: 1/4

What command in OpenShift would you use to patch a running pod with new configurations?

oc config pod <pod-name>

oc edit pod <pod-name>

oc patch pod <pod-name>

oc update pod <pod-name>

Question 8

Correct Answers: 1/4

What role does the Aggregator layer play in the `openshift-kube-apiserver`?

It optimizes logging and metrics collection

It allows external APIs to be aggregated under a single endpoint

It adds an API layer for storage management

It manages access to third-party APIs

Question 9

Correct Answers: 1/4

What is the role of the Service object in OpenShift?

To manage persistent storage

To automate CI/CD pipelines

To ensure that a group of pods can communicate with each other internally within the cluster

To expose applications to external users only

Question 10

Correct Answers: 1/4

What action does the `oc scale --replicas=0` command perform on a DeploymentConfig?

It resets all replicas to the default count

It increases the replica count based on load

It scales the DeploymentConfig's pods to zero, stopping the application

It deletes the DeploymentConfig

Question 11

Correct Answers: 2/4

Which of the following are true for etcd?

To validate cluster nodes

To encrypt cluster data and send it to a secrets manager

etcd is a distributed key-value store

etcd is the primary datastore of Kubernetes; storing and replicating all Kubernetes cluster state

Question 12

Correct Answers: 1/4

Which command is used to back up etcd data in an OpenShift cluster?

etcd backup save <snapshot-file>

oc etcd snapshot <snapshot-file>

oc backup etcd <snapshot-file>

etcdctl snapshot save <snapshot-file>

Question 1

What is the primary role of etcd in an OpenShift cluster?

Question 2

Which command in OpenShift would you use to add a label to a pod?

Question 3

How can Keycloak roles be mapped to OpenShift roles for access control?

Question 4

What is the role of kube-apiserver and kube-scheduler?

Question 5

How does OpenShift manage image versioning within an ImageStream?

Question 6

Which Keycloak token is used by OpenShift to validate a user's identity during login?

Question 7

What command in OpenShift would you use to patch a running pod with new configurations?

Question 8

What role does the Aggregator layer play in the `openshift-kube-apiserver`?

Question 9

What is the role of the Service object in OpenShift?

Question 10

What action does the `oc scale --replicas=0` command perform on a DeploymentConfig?

Question 11

Which of the following are true for etcd?

Question 12

Which command is used to back up etcd data in an OpenShift cluster?

Finish Quiz