KCNA VALID TEST EXPERIENCE, CERTIFICATION KCNA TEST ANSWERS

KCNA Valid Test Experience, Certification KCNA Test Answers

KCNA Valid Test Experience, Certification KCNA Test Answers

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Tags: KCNA Valid Test Experience, Certification KCNA Test Answers, Pdf KCNA Files, Braindumps KCNA Pdf, KCNA Valid Exam Registration

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The Linux Foundation KCNA exam covers a wide range of topics, including containerization, Kubernetes architecture, deployment, configuration, and troubleshooting. It also includes topics such as networking, security, storage, and monitoring. KCNA Exam is designed to validate the knowledge and skills of individuals who are working with Kubernetes and other cloud-native technologies in a production environment.

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Certification Linux Foundation KCNA Test Answers, Pdf KCNA Files

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Linux Foundation Kubernetes and Cloud Native Associate Sample Questions (Q193-Q198):

NEW QUESTION # 193
Your Kubernetes cluster has several nodes. A Pod is running on one of the nodes, but the node experiences a hardware failure and goes down. What happens to the Pod?

  • A. The Pod automatically migrates to another node, but the application might experience a brief interruption.
  • B. The Pod is deleted, and the application is unavailable.
  • C. The Pod remains running on the failed node until the node is recovered.
  • D. The Pod is automatically restarted on a different node.
  • E. The Pod remains running, but it becomes unreachable.

Answer: A

Explanation:
Kubernetes handles node failures by automatically restarting Pods that were running on the failed node. This is a key part of its self-healing capabilities. While the Pod might briefly be unavailable during the restart, the application should eventually resume operation on a different node.


NEW QUESTION # 194
What is etcd used for in Kubernetes?

  • A. Kubernetes API security
  • B. Backend object storage for the Kubernetes API
  • C. Network routing for the cluster
  • D. Integration with cloud platforms

Answer: B

Explanation:
etcd serves as a distributed object store that backs the Kubernetes API.


NEW QUESTION # 195
You have a Kubernetes cluster with multiple namespaces. You are running different applications in separate namespaces and want to ensure that HPAs in each namespace are not interfering with each other. Which of the following measures should you take?

  • A. There is no need for any specific measures as HPAs are isolated by default within their respective namespaces.
  • B. Use a single HPA for all applications in all namespaces.
  • C. Create a custom controller to manage HPAs across multiple namespaces and coordinate scaling decisions.
  • D. Configure resource quotas for each namespace to prevent resource over-allocation by HPAs.
  • E. Ensure that the •minReplicas• and •maxReplicaS values for HPAs across namespaces are aligned.

Answer: C,D

Explanation:
You need to ensure that HPAs are not competing for resources across namespaces- Resource quotas (C) limit resource consumption within each namespace, preventing HPAs from consuming resources intended for other applications. A custom controller (D) can be used to manage HPAs across multiple namespaces, coordinating scaling decisions to avoid resource contention and optimize utilization across the cluster. While options A and B might seem relevant, they are not effective solutions for preventing interference between HPAs in different namespaces. Option E is incorrect; HPAs operate within their namespaces, but resource contention can occur if not managed properly.


NEW QUESTION # 196
Consider the following Kubernetes YAML definition for a Deployment:

Which of the following statements about this Deployment are true?

  • A. The Deployment will create a Service that exposes the Pods on port 80.
  • B. The Deployment will expose the Pods on port 80.
  • C. The Deployment will only create Pods with the label 'app: nginx' if a corresponding Service exists.
  • D. The Deployment will use the 'nginx:l. 14.2' image to create the Pods.
  • E. The Deployment will create 3 Pods with the label 'app: nginx'.

Answer: D,E

Explanation:
The Deployment will create 3 Pods with the label 'app: nginx' because the 'selector' and 'template.metadata.labels' sections specify this. The Deployment will use the 'nginx:l. 14.2' image to create the Pods as defined in the 'spec.template.spec.containers' section. The Deployment itself does not create a Service. You would need to create a separate Service resource to expose the Pods on port 80.


NEW QUESTION # 197
In Kubernetes, what is considered the primary cluster data source?

  • A. scheduler
  • B. api server
  • C. kubelet
  • D. etcd (pronounce: esty-d)

Answer: D

Explanation:
https://kubernetes.io/docs/concepts/overview/components/#etcd


NEW QUESTION # 198
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