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Linux Foundation Kubernetes and Cloud Native Associate Sample Questions (Q183-Q188):

NEW QUESTION # 183
You are deploying a web application that requires high availability. You have configured a Kubernetes Deployment with 3 replicas. However, you notice that when one pod restarts, it takes a significant amount of time for the application to become fully operational again. What Kubernetes feature could you use to minimize the downtime during pod restarts?

A. Horizontal Pod Autoscaler
B. StatefulSet
C. DaemonSet
D. Service
E. Pod Disruption Budget

Answer: E

Explanation:
A Pod Disruption Budget (PDB) allows you to specify a minimum number of healthy pods that must be available at any given time. This helps prevent large-scale disruptions during rolling updates or pod restarts. By setting a PDB, you can ensure that your web application remains available during these events, minimizing downtime.

NEW QUESTION # 184
Which style of operations are preferred for kubernetes and cloud-native applications?

A. None of the above
B. Declarative
C. Imperative

Answer: B

Explanation:
https://kubernetes.io/docs/tasks/manage-kubernetes-objects/declarative-config/#trade-offs

NEW QUESTION # 185
You have a Kubernetes cluster with a pod that uses a resource limit of 100m CPU. What happens if the pod requests more CPU resources than the limit?

A. The pod will be scheduled on a different node with more available resources.
B. The pod will be killed and restarted.
C. The pod will be throttled and its performance will be impacted.
D. The pod will be automatically scaled down to 100m CPU.
E. The pod will continue to run using the requested amount of CPU.

Answer: C

Explanation:
The pod will be throttled and its performance will be impacted. The CPIJ limit acts as a hard ceiling, preventing the pod from consuming more resources than specified. Even if the pod requests more CPU, it will be constrained to the limit, leading to performance degradation. The pod will not be killed, restarted, or automatically scaled down. It will continue to run, but its performance will be affected due to the resource constraint.

NEW QUESTION # 186
What are default kubernetes namespaces?

A. default, kube-public, kube-system, kube-node-lease
B. kube-default, kube-public, kube-system, kube-node-lease
C. default, kube-public, kube-system, kube-node-leases
D. default, kube-public, kube-systems, kube-node-lease

Answer: A

Explanation:
https://kubernetes.io/docs/concepts/overview/working-with-objects/namespaces/

NEW QUESTION # 187
You are setting up a Kubernetes cluster with a large number of pods. You want to optimize the network communication between these pods for high performance and minimal latency. Which Kubernetes networking option would you consider for this scenario?

A. Canal
B. Calico
C. kube-proxy
D. Weave Net
E. Flannel

Answer: B,D

Explanation:
Calico and Weave Net are known for their performance and scalability in Kubernetes environments. Calico provides efficient routing and optimized network communication, making it suitable for large-scale deployments. Weave Net is a popular choice for its simplicity scalability, and performance in handling heavy network traffic. While Flannel and Canal are also Kubernetes networking solutions, they may not be as optimized for large-scale deployments as Calico and Weave Net

NEW QUESTION # 188
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