In Kubernetes networking, how do Pods communicate with each other?

Pods communicate only through Services.

Pods communicate only through the host network.

Pods communicate only within the same node.

Each Pod has a unique IP address and can communicate directly with any other Pod.

What is Helm used for in Kubernetes?

To provide a GUI for managing clusters

To package and deploy applications using charts

A company exposes multiple HTTP services to the internet. They want to route traffic based on the URL path, such as /api to one service and /web to another, using a single external IP address. Which Kubernetes resource should they configure?

A Service of type LoadBalancer for each service

An Ingress resource with rules for each path

A Service of type NodePort for each service

A single Service with multiple ports

A team manages a web application using a Deployment with 3 replicas. They need to roll out a new image version with zero downtime. They update the container image in the Deployment manifest and apply it. During the rollout, the Deployment creates a new ReplicaSet and scales it up while scaling down the old ReplicaSet. Halfway through, the team notices that the new Pods are failing their readiness probe. What is the most likely outcome of this situation?

The new Pods are terminated and recreated with the old image

The rollout pauses indefinitely until the readiness probe passes

The Deployment rolls back automatically to the previous image version

The rollout continues, but the new ReplicaSet never reaches full scale and the old ReplicaSet is not scaled down

What is the purpose of a resource request in Kubernetes?

To specify the maximum amount of CPU or memory a container can use

To specify the number of replicas for a Deployment

To specify the storage size for a PersistentVolumeClaim

To specify the minimum amount of CPU or memory a container needs

Kubernetes and Cloud Native Associate (KCNA)

Domain 1Objective 1

Kubernetes Core Concepts KCNA Practice Questions (Page 3)

Part of the Kubernetes Fundamentals domain, which accounts for 44% of the KCNA exam. Linux Foundation does not publish an official question count, but from its 90-minute exam (~35–60 total, ~15–26 in this domain), expect 3–4 from this objective — we provide 60 practice questions to prepare you well beyond it. (estimate)

60questions here

12free pages

24concepts

44%of the exam

Questions 11–15

11foundation · easy
In Kubernetes networking, how do Pods communicate with each other?
Select an answer first
12foundation · easy
What is Helm used for in Kubernetes?
Select an answer first
13application · medium
A company exposes multiple HTTP services to the internet. They want to route traffic based on the URL path, such as /api to one service and /web to another, using a single external IP address. Which Kubernetes resource should they configure?
Select an answer first
14application · medium
A team manages a web application using a Deployment with 3 replicas. They need to roll out a new image version with zero downtime. They update the container image in the Deployment manifest and apply it. During the rollout, the Deployment creates a new ReplicaSet and scales it up while scaling down the old ReplicaSet. Halfway through, the team notices that the new Pods are failing their readiness probe. What is the most likely outcome of this situation?
Select an answer first
15foundation · easy
What is the purpose of a resource request in Kubernetes?
Select an answer first

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