Your cluster is running low on resources and you need to add a new worker node. You have prepared a new VM with the container runtime installed. What is the next step to join it to the cluster?

Run 'kubectl join --token ' on the new node

Run 'kubeadm join --token --discovery-token-ca-cert-hash ' on the new node

Run 'kubeadm init' on the new node

Copy the kubelet configuration from an existing worker node to the new node

What is the purpose of the kubectl drain command when preparing a worker node for an upgrade?

To delete the node from the cluster

To mark the node as unschedulable and evict its pods

To upgrade the kubelet on the node

You are planning a cluster upgrade from v1.27 to v1.29. The cluster has 3 control plane nodes and 10 worker nodes. You want to minimize downtime. What is the correct upgrade strategy?

Upgrade all nodes simultaneously to save time

Upgrade the control plane nodes one by one, but upgrade all worker nodes at once

Upgrade all worker nodes first, then upgrade the control plane nodes

Upgrade all control plane nodes first, then upgrade worker nodes one by one

Certified Kubernetes Administrator (CKA)

Domain 4Objective 4

Manage the Lifecycle of Kubernetes Clusters 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 25 practice questions to prepare you well beyond it. (estimate)

25questions here

5free pages

7concepts

25%of the exam

Questions 6–10

6application · medium
Your cluster is running low on resources and you need to add a new worker node. You have prepared a new VM with the container runtime installed. What is the next step to join it to the cluster?
Select an answer first
7foundation · easy
What is the purpose of the kubectl drain command when preparing a worker node for an upgrade?
Select an answer first
8expert · hard
You are upgrading a kubeadm cluster from v1.27 to v1.28. The control plane has been upgraded successfully. You are now upgrading the worker nodes. What is the correct command to run on each worker node?
Select an answer first
9foundation · easy
After upgrading the kubelet and kubeadm on a worker node, which command should be run to allow new pods to be scheduled on the node again?
Select an answer first
10expert · hard
You are planning a cluster upgrade from v1.27 to v1.29. The cluster has 3 control plane nodes and 10 worker nodes. You want to minimize downtime. What is the correct upgrade strategy?
Select an answer first

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Manage the Lifecycle of Kubernetes Clusters CKA Practice Questions (Page 2)

Questions 6–10

Your cluster is running low on resources and you need to add a new worker node. You have prepared a new VM with the container runtime installed. What is the next step to join it to the cluster?

What is the purpose of the kubectl drain command when preparing a worker node for an upgrade?

You are upgrading a kubeadm cluster from v1.27 to v1.28. The control plane has been upgraded successfully. You are now upgrading the worker nodes. What is the correct command to run on each worker node?

After upgrading the kubelet and kubeadm on a worker node, which command should be run to allow new pods to be scheduled on the node again?

You are planning a cluster upgrade from v1.27 to v1.29. The cluster has 3 control plane nodes and 10 worker nodes. You want to minimize downtime. What is the correct upgrade strategy?

Keep studying — Cluster Architecture, Installation and Configuration