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Linux Foundation Kubernetes and Cloud Native Associate - KCNA Exam Practice Test

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Total 242 questions

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Question 1

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

A. kubelet B. kubeadm C. kube-apiserver D. kubectl

Discussion 0

Correct Answer: A Vote an answer

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Question 2

Which is the correct kubectl command to display logs in real time?

A. kubectl logs -f test-container-1 B. kubectl logs -l test-container-1 C. kubectl logs -c test-container-1 D. kubectl logs -p test-container-1

Discussion 0

Correct Answer: A Vote an answer

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Question 3

There is an application running in a logical chain: Gateway API # Service # EndpointSlice # Container.
What Kubernetes API object is missing from this sequence?

A. Docker B. Pod C. Proxy D. Firewall

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Correct Answer: B Vote an answer

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Question 4

Which type of Service requires manual creation of Endpoints?

A. NodePort B. LoadBalancer C. ClusterIP with selectors D. Services without selectors

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Correct Answer: D Vote an answer

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Question 5

What are the most important resources to guarantee the performance of an etcd cluster?

A. CPU and disk capacity. B. Network throughput and disk I/O. C. CPU and RAM memory. D. Network throughput and CPU.

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Correct Answer: B Vote an answer

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Question 6

The IPv4/IPv6 dual stack in Kubernetes:

A. Translates an IPv4 request from a Service to an IPv6 Service. B. Requires NetworkPolicies to prevent Services from mixing requests. C. Allows you to create IPv4 and IPv6 dual stack Services. D. Allows you to access the IPv4 address by using the IPv6 address.

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Correct Answer: C Vote an answer

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Question 7

Which of these components is part of the Kubernetes Control Plane?

A. kubelet B. cloud-controller-manager C. kube-proxy D. CoreDNS

Discussion 0

Correct Answer: B Vote an answer

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Question 8

What is the default value for authorization-mode in Kubernetes API server?

A. --authorization-mode=AlwaysAllow B. --authorization-mode=AlwaysDeny C. --authorization-mode=RBAC D. --authorization-mode=ABAC

Discussion 0

Correct Answer: A Vote an answer

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Question 9

Which of the following resources helps in managing a stateless application workload on a Kubernetes cluster?

A. DaemonSet B. Deployment C. StatefulSet D. kubectl

Discussion 0

Correct Answer: B Vote an answer

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Question 10

In a Kubernetes cluster, which scenario best illustrates the use case for a StatefulSet?

A. A database that requires persistent storage and stable network identities. B. A service that routes traffic to various microservices in the cluster. C. A web application that requires multiple replicas for load balancing. D. A background job that runs periodically and does not maintain state.

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Correct Answer: A Vote an answer

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Question 11

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

A. Pod Disruption Budgets B. Taints and Tolerations C. Pod Topology Spread Constraints D. Resource Limits and Requests

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Total 242 questions

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