New KCNA Exam Bootcamp, KCNA PDF Question

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Linux Foundation has been providing certification exams to individuals who want to demonstrate their expertise in open source technologies. One of their newest offerings is the KCNA (Kubernetes and Cloud Native Associate) Certification Exam. KCNA Exam is designed for individuals who want to prove their knowledge and skills in cloud native computing and Kubernetes.

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It would take a lot of serious effort to pass the Kubernetes and Cloud Native Associate (KCNA) exam, therefore it wouldn't be simple. So, you have to prepare yourself for this. But since we are here to assist you, you need not worry about how you will study for the Kubernetes and Cloud Native Associate (KCNA) exam dumps. You can get help from us on how to get ready for the Kubernetes and Cloud Native Associate (KCNA) exam questions. We will accomplish this objective by giving you access to some excellent KCNA practice test material that will enable you to get ready for the Kubernetes and Cloud Native Associate (KCNA) exam dumps.

Linux Foundation Kubernetes and Cloud Native Associate Sample Questions (Q172-Q177):

NEW QUESTION # 172
You are running a service in Kubernetes that uses a persistent volume. You need to ensure that the volume is automatically cleaned up when the service is deleted. Which of the following approaches would you use?

A. Set the 'persistentVolumeReclaimPolicy' to 'Delete' in the PersistentVolumeClaim
B. Use a DaemonSet to run a cleanup script that removes the volume when the service is deleted
C. Configure a CronJob to periodically check for unused volumes and delete them
D. Delete the PersistentVolumeClaim manually when the service is deleted
E. There is no automatic way to clean up a persistent volume when a service is deleted; it needs to be done manually.

Answer: A

Explanation:
Setting the 'persistentVolumeReclaimPolicy' to 'Delete' in the PersistentVolumeClaim ensures that the volume is automatically deleted when the PVC is deleted. This is the most straightforward and recommended approach for cleaning up persistent volumes in Kubernetes.

NEW QUESTION # 173
You are using Prometheus to monitor a Kubernetes cluster and want to create an alert that triggers when the number of failed deployments in a specific namespace exceeds a certain threshold. Which Prometheus query can help achieve this?

Answer: A

Explanation:
The query •sum(kube_deployment_status_replicas_unavailable{namespace=""} 1) > 5' focuses on the 'replicas_unavailable' metric for deployments in the specified namespace. It counts deployments where the unavailable replica count is 1 , effectively indicating failed deployments. If this count exceeds 5, the alert will trigger.

NEW QUESTION # 174
You are deploying a pod that requires access to a specific storage volume attached to a particular node. Which Kubernetes feature can you utilize to guarantee the pod is scheduled only on that specific node?

A. Taints and tolerations
B. Pod anti-affinity
C. Node anti-affinity
D. Pod affinity
E. Node affinity

Answer: A,E

Explanation:
You can achieve this by using either •nodeAffinity• or •taints and tolerationS: 'nodeAffinity•• Similar to the previous question, define 'requiredDuringSchedulinglgnoredDuringExecution• to enforce scheduling on the specific node. 'Taints and TolerationS: Apply a taint on the specific node that reflects the volume availability. Then, configure the pod to tolerate that specific taint, ensuring it can only be scheduled on the node with the matching taint. While •podAffinity• and •podAntiAffinity' are useful for grouping or distributing pods, they do not directly guarantee scheduling on a specific node based on volume availability.

NEW QUESTION # 175
You are running a sensitive application in Kubernetes that requires access to the host network. Which of the following security measures is MOST important to mitigate the risk of potential security breaches?

A. Configuring strong passwords for all Kubernetes users.
B. Employing a secrets management solution like HashiCorp Vault or AWS Secrets Manager.
C. Using Network Policies to restrict access to the host network.
D. Using a container security scanner to identify and fix vulnerabilities.
E. Deploying the application in a private Kubernetes cluster.

Answer: C

Explanation:
While accessing the host network can be necessary for some applications, it introduces security risks. Using Network Policies to restrict access to the host network for your sensitive application is crucial. This allows you to control which pods can communicate with the host network, reducing the risk of unauthorized access and potential security breaches.

NEW QUESTION # 176
Which kubernetes resource type allows defining which pods are isolated when it comes to network-ing?

A. Domain Name System 'DNS'
B. Service
C. Role Binding
D. Network policy

Answer: D

Explanation:
https://kubernetes.io/docs/concepts/services-networking/network-policies/#the-two-sorts-of-pod-isolation

NEW QUESTION # 177
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NEW KCNA EXAM BOOTCAMP, KCNA PDF QUESTION

New KCNA Exam Bootcamp, KCNA PDF Question