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Perfect Linux Foundation Valid Study KCNA Questions Are Leading Materials & Useful KCNA: Kubernetes and Cloud Native Associate

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The KCNA exam covers a broad range of topics related to Kubernetes and cloud-native technologies, including containerization, pod management, services and networking, storage management, security, and troubleshooting. KCNA exam is designed to test candidates' abilities to deploy Kubernetes clusters, manage containerized applications, and troubleshoot common issues that arise in a cloud-native environment. Successful candidates will receive the KCNA Certification, which demonstrates their proficiency in cloud-native technologies and their ability to work with Kubernetes effectively. Overall, the KCNA exam is an excellent opportunity for IT professionals to enhance their skills and demonstrate their expertise in one of the fastest-growing areas of the technology industry.

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Linux Foundation KCNA Certification Exam is an online, proctored exam that consists of 40 multiple-choice questions. KCNA exam is conducted on the EdX platform, which is a leading online learning platform. KCNA exam is designed to test the candidate's understanding of the fundamentals of Kubernetes, containerization, and cloud-native technologies. KCNA Exam covers topics such as Kubernetes architecture, deployment, configuration, and troubleshooting.

Linux Foundation Kubernetes and Cloud Native Associate Sample Questions (Q150-Q155):

NEW QUESTION # 150
You need to restrict the resources available to pods deployed within a specific namespace. What Kubernetes resource should you use?

A. LimitRange
B. ResourceQuota
C. NetworkPolicy
D. PodSecurityPolicy
E. ServiceAccount

Answer: B

Explanation:
ResourceQuota is used to restrict the resources available to pods within a namespace. You can set limits on CPU, memory, storage, and other resources to prevent resource exhaustion. LimitRange is used to set minimum and maximum limits for resources that apply to all pods in a namespace, but not to restrict the total resources used. The other options are not relevant to resource restriction: PodSecurityPolicy restricts security settings, NetworkPolicy manages network traffic, and ServiceAccount provides identity and credentials for pods.

NEW QUESTION # 151
Fluentd is the leading project in the CNCF space for logging?

A. FALSE
B. TRUE

Answer: B

Explanation:
https://github.com/cncf/landscape#trail-map

NEW QUESTION # 152
You have a Kubernetes cluster with a deployment named 'my-app' that has a replica count of 3. You need to temporarily scale it down to 1 replica. Which command would you use?

A. kubectl set scale deployments my-app -replicas=1
B. kubectl apply -f my-app-deployment.yaml --replicas=1
C. kubectl scale deployments my-app -replicas=1
D. kubectl patch deployments my-app -type=json-patch='{"spec":{"replicas":1}}'
E. kubectl edit deployment my-app -replicas=1

Answer: A,C

Explanation:
Both 'kubectl scale deployments my-app -replicas=l' and 'kubectl set scale deployments my- app --replicas=1' are valid commands to scale down the deployment. Option 'C' also works but it is more verbose. Option 'B' would edit the deployment configuration, which is not the desired outcome in this case. Option 'E' would apply a new configuration, which is also not ideal.

NEW QUESTION # 153
What are the key differences between a Kubernetes Pod and a Docker container? Provide examples of how they are used in a Kubernetes deployment.

A. A Pod is a cloud-native application, while a Docker container is a traditional application.
B. A Pod is a physical machine, while a Docker container is a virtual machine.
C. A Pod is a single running container, while a Docker container can run multiple applications.
D. A Pod is a logical grouping of one or more containers, while a Docker container is a single running instance of an image.
E. A Docker container is managed by Kubernetes, while a Pod is managed by Docker.

Answer: D

Explanation:
A Pod in Kubernetes is the smallest deployable unit. It represents a group of one or more containers that share resources and networking. Docker containers, on the other hand, are individual running instances of Docker images. Examples: Pod: You could have a Pod that runs a web server container, a database container, and a logging container, all working together as a single unit. Kubernetes manages the scheduling, networking, and resource allocation for the entire Pod. Docker Container: You could run a single Docker container for a web server application on a single machine.

NEW QUESTION # 154
Which of the following Kubernetes components is responsible for authenticating and authorizing users who access the Kubernetes API?

A. etcd
B. kubelet
C. kubectl
D. apiserver
E. kube-proxy

Answer: D

Explanation:
The Kubernetes API server (apiserver) is responsible for authenticating and authorizing users who access the Kubernetes API. It enforces access control rules based on RBAC (Role-Based Access Control) configurations. The apiserver acts as the central control point for all Kubernetes interactions, ensuring secure and controlled access to cluster resources.

NEW QUESTION # 155
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