KCNA Container Orchestration Concepts Quiz

1. Which storage option in Kubernetes persists data beyond pod lifecycle?

Container filesystem

PersistentVolume (PV)

Environment variables

ConfigMap

Submit

3. Which Kubernetes object runs a task to completion and then stops?

Pod

Job

CronJob

Deployment

4. What does a NetworkPolicy object control in Kubernetes?

Pod-to-pod communication rules

Container image registry access

Node resource allocation

Persistent volume mounting

Submit

6. What is a ConfigMap used for in Kubernetes?

Store sensitive authentication credentials

Store non-sensitive configuration data

Manage container resource allocation

Define network policies

7. Which controller ensures a pod runs on every node in a Kubernetes cluster?

Deployment

StatefulSet

DaemonSet

Job

Submit

9. What is the purpose of resource requests and limits in Kubernetes?

Define minimum and maximum CPU/memory for containers

Encrypt container images

Monitor network bandwidth usage

Configure pod networking rules

Submit

11. What is the primary role of the Kubernetes control plane?

Execute containerized applications on worker nodes

Manage cluster state and make scheduling decisions

Store persistent data for all pods

Route external traffic to services

Submit

13. What does a NodePort Service do?

Exposes the service on every node's IP at a static port

Balances traffic across multiple cloud providers

Stores persistent data on nodes

Encrypts communication between pods

14. Which type of Service exposes pods only within the cluster?

ClusterIP

NodePort

LoadBalancer

ExternalName

Submit

16. What is the main advantage of using a Deployment instead of directly managing ReplicaSets?

Deployments use fewer resources

Deployments enable rolling updates and rollback capabilities

Deployments store data persistently

Deployments eliminate the need for services

17. Which Kubernetes object ensures a specified number of pod replicas are running?

Deployment

ReplicaSet

StatefulSet

DaemonSet

18. A Kubernetes Pod is the smallest deployable unit. What does a Pod contain?

One or more containers sharing network namespace

Multiple independent containers

Only Docker containers, not other runtimes

Virtual machines instead of containers

19. What does etcd store in a Kubernetes cluster?

Container images

All cluster state and configuration data

Application logs

Network traffic metrics

20. Which component is responsible for scheduling pods to nodes in Kubernetes?

Kubelet

Kube-scheduler

Kube-proxy

Etcd

KCNA Container Orchestration Concepts Quiz

1. Which storage option in Kubernetes persists data beyond pod lifecycle?

2.

What first name or nickname would you like us to use?

2. A CronJob schedules Kubernetes Jobs using ______ expressions.

3. Which Kubernetes object runs a task to completion and then stops?

4. What does a NetworkPolicy object control in Kubernetes?

5. Secrets in Kubernetes are base64-encoded to store ______ sensitive data.

6. What is a ConfigMap used for in Kubernetes?

7. Which controller ensures a pod runs on every node in a Kubernetes cluster?

8. A StatefulSet is best used for applications requiring ______ and stable network identity.

9. What is the purpose of resource requests and limits in Kubernetes?

10. A PersistentVolumeClaim (PVC) is used to ______ storage from a PersistentVolume.

11. What is the primary role of the Kubernetes control plane?

12. Ingress in Kubernetes manages ______ access to services within a cluster.

13. What does a NodePort Service do?

14. Which type of Service exposes pods only within the cluster?

15. A Service in Kubernetes provides a stable ______ for accessing a set of pods.

16. What is the main advantage of using a Deployment instead of directly managing ReplicaSets?

17. Which Kubernetes object ensures a specified number of pod replicas are running?

18. A Kubernetes Pod is the smallest deployable unit. What does a Pod contain?

19. What does etcd store in a Kubernetes cluster?

20. Which component is responsible for scheduling pods to nodes in Kubernetes?