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KCNA Practice Questions

Kubernetes and Cloud Native Associate

Last Update 4 days ago
Total Questions : 239

Dive into our fully updated and stable KCNA practice test platform, featuring all the latest Kubernetes and Cloud Native exam questions added this week. Our preparation tool is more than just a Linux Foundation study aid; it's a strategic advantage.

Our free Kubernetes and Cloud Native practice questions crafted to reflect the domains and difficulty of the actual exam. The detailed rationales explain the 'why' behind each answer, reinforcing key concepts about KCNA. Use this test to pinpoint which areas you need to focus your study on.

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Question # 11

A site reliability engineer needs to temporarily prevent new Pods from being scheduled on node-2 while keeping the existing workloads running without disruption. Which kubectl command should be used?

Options:

A.  

kubectl cordon node-2

B.  

kubectl delete node-2

C.  

kubectl drain node-2

D.  

kubectl pause deployment

Discussion 0
Question # 12

Which of the following options is true about considerations for large Kubernetes clusters?

Options:

A.  

Kubernetes supports up to 1000 nodes and recommends no more than 1000 containers per node.

B.  

Kubernetes supports up to 5000 nodes and recommends no more than 500 Pods per node.

C.  

Kubernetes supports up to 5000 nodes and recommends no more than 110 Pods per node.

D.  

Kubernetes supports up to 50 nodes and recommends no more than 1000 containers per node.

Discussion 0
Question # 13

In Kubernetes, what is the primary responsibility of the kubelet running on each worker node?

Options:

A.  

To allocate persistent storage volumes and manage distributed data replication for Pods.

B.  

To manage cluster state information and handle all scheduling decisions for workloads.

C.  

To ensure that containers defined in Pod specifications are running and remain healthy on the node.

D.  

To provide internal DNS resolution and route service traffic between Pods and nodes.

Discussion 0
Question # 14

Which component of the Kubernetes architecture is responsible for integration with the CRI container runtime?

Options:

A.  

kubeadm

B.  

kubelet

C.  

kube-apiserver

D.  

kubectl

Discussion 0
Question # 15

In the Kubernetes platform, which component is responsible for running containers?

Options:

A.  

etcd

B.  

CRI-O

C.  

cloud-controller-manager

D.  

kube-controller-manager

Discussion 0
Question # 16

Kubernetes ___ protect you against voluntary interruptions (such as deleting Pods, draining nodes) to run applications in a highly available manner.

Options:

A.  

Pod Topology Spread Constraints

B.  

Pod Disruption Budgets

C.  

Taints and Tolerations

D.  

Resource Limits and Requests

Discussion 0
Question # 17

What is the main purpose of etcd in Kubernetes?

Options:

A.  

etcd stores all cluster data in a key value store.

B.  

etcd stores the containers running in the cluster for disaster recovery.

C.  

etcd stores copies of the Kubernetes config files that live /etc/.

D.  

etcd stores the YAML definitions for all the cluster components.

Discussion 0
Question # 18

A Kubernetes _____ is an abstraction that defines a logical set of Pods and a policy by which to access them.

Options:

A.  

Selector

B.  

Controller

C.  

Service

D.  

Job

Discussion 0
Question # 19

What is the practice of bringing financial accountability to the variable spend model of cloud resources?

Options:

A.  

FaaS

B.  

DevOps

C.  

CloudCost

D.  

FinOps

Discussion 0
Question # 20

What sentence is true about CronJobs in Kubernetes?

Options:

A.  

A CronJob creates one or multiple Jobs on a repeating schedule.

B.  

A CronJob creates one container on a repeating schedule.

C.  

CronJobs are useful on Linux but are obsolete in Kubernetes.

D.  

The CronJob schedule format is different in Kubernetes and Linux.

Discussion 0
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