A Kubernetes administrator is preparing to install a cluster with kubeadm. They have set up the load balancer and DNS records. Which certificate-related prerequisite must be addressed before running kubeadm init?

Ensure the API server certificate includes the load balancer's DNS name as a SAN.

Generate a CA certificate and distribute it to all nodes.

Install a public certificate on each node for kubelet communication.

Create a certificate for etcd and place it in /etc/kubernetes/pki.

What is the purpose of a load balancer in front of multiple control plane nodes?

To store cluster state and configuration.

To provide DNS resolution for cluster services.

To balance the load of container workloads across worker nodes.

To distribute traffic to the API server across control plane nodes.

A company is planning to deploy a stateful application on a Kubernetes cluster. They have prepared the nodes with kubeadm, kubelet, and kubectl. Which additional infrastructure preparation is required to support persistent volumes?

Create a local directory on each node and mount it to /var/lib/kubelet.

Configure a shared storage solution, such as NFS or a cloud provider's block storage, and ensure it is accessible from the cluster nodes.

Install the CSI driver for the storage provider on the control plane node only.

Install the iSCSI initiator on all nodes to connect to a SAN.

What is the purpose of installing a container runtime on all nodes in a Kubernetes cluster?

To store cluster state and configuration.

To provide the Kubernetes control plane components.

To run and manage containers on each node.

To manage network policies between pods.

Certified Kubernetes Administrator (CKA)

Domain 4Objective 2

Prepare Underlying Infrastructure for Installing a Kubernetes Cluster CKA Practice Questions (Page 2)

Part of the Cluster Architecture, Installation and Configuration domain, which accounts for 25% of the CKA exam. Linux Foundation does not publish an official question count, but from its 120-minute exam (~50–80 total, ~13–20 in this domain), expect 2–3 from this objective — we provide 23 practice questions to prepare you well beyond it. (estimate)

23questions here

5free pages

8concepts

25%of the exam

8 Concepts in This Objective

Network prerequisites
Firewall and port requirements
Container runtime installation
System package and dependency setup
Swap and kernel module configuration
Load balancer preparation
DNS and certificate prerequisites
Storage and volume prerequisites

Questions 6–10

6application · medium
A company is deploying a Kubernetes cluster and plans to use persistent volumes for a database. They have prepared the nodes with kubeadm, kubelet, and kubectl. Which storage type is most appropriate for a multi-node cluster where data must be shared across nodes?
Select an answer first
7application · medium
A Kubernetes administrator is preparing to install a cluster with kubeadm. They have set up the load balancer and DNS records. Which certificate-related prerequisite must be addressed before running kubeadm init?
Select an answer first
8foundation · easy
What is the purpose of a load balancer in front of multiple control plane nodes?
Select an answer first
9application · medium
A company is planning to deploy a stateful application on a Kubernetes cluster. They have prepared the nodes with kubeadm, kubelet, and kubectl. Which additional infrastructure preparation is required to support persistent volumes?
Select an answer first
10foundation · easy
What is the purpose of installing a container runtime on all nodes in a Kubernetes cluster?
Select an answer first

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