What is the primary purpose of placing a load balancer in front of multiple API server instances?

To distribute client traffic across API servers and provide a single endpoint for clients

To store the cluster state and provide a backup for etcd

To authenticate and authorize all API requests

To schedule pods across control plane nodes

You are provisioning a second control plane node to join an existing highly-available cluster. The first control plane node was set up with kubeadm. You have already generated the necessary certificates and kubeconfigs on the new node. What is the next step to join the new node to the control plane?

Copy the etcd data directory from the first control plane node to the new node and start kubelet.

Manually configure the API server, controller manager, and scheduler as systemd services on the new node.

Run kubeadm join on the new node with the control plane endpoint and the certificate key.

Run kubeadm init on the new node with the same configuration as the first control plane node.

What does the /readyz endpoint on the kube-apiserver provide?

The current leader of the controller manager

A list of all active API server connections

A readiness check indicating whether the API server is ready to serve requests

Certified Kubernetes Administrator (CKA)

Domain 4Objective 5

Implement and Configure a Highly-Available Control Plane CKA Practice Questions (Page 1)

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 26 practice questions to prepare you well beyond it. (estimate)

26questions here

6free pages

8concepts

25%of the exam

8 Concepts in This Objective

High-Availability Control Plane Architecture
etcd Cluster Configuration
Load Balancing the API Server
Leader Election for Control Plane Components
Stacked etcd vs External etcd Topology
Control Plane Node Provisioning
Verifying Control Plane Health
Upgrading a Highly-Available Control Plane

Questions 1–5

1foundation · easy
When configuring an etcd cluster for high availability, which setting is used to specify the list of peer URLs for other etcd members?
Select an answer first
2foundation · easy
Which command is used to create a snapshot backup of an etcd database in a running cluster?
Select an answer first
3foundation · easy
What is the primary purpose of placing a load balancer in front of multiple API server instances?
Select an answer first
4application · medium
You are provisioning a second control plane node to join an existing highly-available cluster. The first control plane node was set up with kubeadm. You have already generated the necessary certificates and kubeconfigs on the new node. What is the next step to join the new node to the control plane?
Select an answer first
5foundation · easy
What does the /readyz endpoint on the kube-apiserver provide?
Select an answer first

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Implement and Configure a Highly-Available Control Plane CKA Practice Questions (Page 1)

Questions 1–5

When configuring an etcd cluster for high availability, which setting is used to specify the list of peer URLs for other etcd members?

Which command is used to create a snapshot backup of an etcd database in a running cluster?

What is the primary purpose of placing a load balancer in front of multiple API server instances?

What does the /readyz endpoint on the kube-apiserver provide?

Keep studying — Cluster Architecture, Installation and Configuration