CKA Kubernetes Cluster Architecture Quiz

1. What is the primary role of etcd in a Kubernetes cluster?

Schedule pods on nodes

Store all cluster configuration and state data

Manage container runtimes

Handle pod networking

2. What is the purpose of RBAC in Kubernetes cluster security?

Controls who can access resources based on roles

Encrypts all network traffic

Manages container images

Schedules pod deployments

3. What is the role of a service in Kubernetes cluster architecture?

Provides a stable network endpoint for pods

Stores persistent data

Compiles container images

Monitors cluster metrics

4. Which port does the kube-apiserver typically listen on?

6379

6443

8080

2379

Submit

6. What does the admission controller do in the API server?

Validates and mutates API requests

Schedules pods

Manages storage

Monitors node health

7. How does a worker node communicate with the control plane?

Through the kube-apiserver REST API

Direct socket connections

Message queues

Broadcast messages

8. Which of the following is NOT a control plane component?

Kube-apiserver

Etcd

Kubelet

Kube-scheduler

Submit

10. What is the purpose of the cloud-controller-manager component?

Manage cloud provider-specific controllers

Schedule all pods

Store cluster data

Pull container images

11. Which network plugin is commonly used for pod-to-pod communication in Kubernetes?

Flannel or Calico

Docker networking

Host networking only

Bridge mode

12. What does the kube-controller-manager manage in a Kubernetes cluster?

API requests and responses

Multiple control loops including replication and node controllers

Container image pulling

Persistent volume allocation

13. Which component runs on the control plane and manages the Kubernetes API server?

Kubelet

Kube-apiserver

Kube-scheduler

Etcd

Submit

17. Which kubelet flag is used to specify the API server address?

--api-server

--kubeconfig

--master

--server-address

Submit

19. Which component is responsible for assigning IP addresses to pods?

Kube-proxy

Kubelet

CNI plugin

Kube-scheduler

Submit

CKA Kubernetes Cluster Architecture Quiz

1. What is the primary role of etcd in a Kubernetes cluster?

2.

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

2. What is the purpose of RBAC in Kubernetes cluster security?

3. What is the role of a service in Kubernetes cluster architecture?

4. Which port does the kube-apiserver typically listen on?

5. The control plane stores cluster state in ____.

6. What does the admission controller do in the API server?

7. How does a worker node communicate with the control plane?

8. Which of the following is NOT a control plane component?

9. In Kubernetes, the kubelet runs on ____.

10. What is the purpose of the cloud-controller-manager component?

11. Which network plugin is commonly used for pod-to-pod communication in Kubernetes?

12. What does the kube-controller-manager manage in a Kubernetes cluster?

13. Which component runs on the control plane and manages the Kubernetes API server?

14. The kube-proxy component is responsible for ____.

15. The Container Network Interface (CNI) specification allows ____.

16. The kube-scheduler is responsible for ____.

17. Which kubelet flag is used to specify the API server address?

18. The kubelet communicates with the container runtime via the ____ interface.

19. Which component is responsible for assigning IP addresses to pods?

20. High availability in a Kubernetes cluster typically requires ____ control plane nodes.