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Kubernetes and Cloud Native Associate (KCNA)
KCNA Exam

Which of the following is an advantage a cloud-native microservices application has over monolithic applications?

  1. Cloud-native microservices applications tend to be faster and more responsive than monolithic applications.
  2. Cloud-native microservice applications tend to be easier to troubleshoot.
  3. Cloud-native microservice applications tend to be easier to scale and perform updates on.

Answer(s): C

Explanation:

Cloud-native applications tend to be microservice base, they have individual services that can be independently scaled, updated and rolled back. This makes scaling and update operations simpler and less risky.



An application that is nearing its usage limit. To increase the amount of users it can handle, you allo- cate additional memory resources to each instance of the application. What type of scaling is this?

  1. Horizontal Scaling
  2. Cluster Autoscaling
  3. Recursive Scaling
  4. Vertical Scaling

Answer(s): D

Explanation:



Which of the following is not the part of Kubernetes Control Plane?

  1. kube scheduler
  2. etcd (pronounce: esty-d)
  3. kube api-server
  4. kube-proxy

Answer(s): D

Explanation:


Reference:

https://kubernetes.io/docs/concepts/overview/components/



Which of the following factors does scheduling take into account when selecting a Node?

  1. How many replicas there are in a Deployment
  2. Services
  3. Resource requirements
  4. The number of existing Pods on a Node

Answer(s): C

Explanation:

Scheduling takes resource requirements into account in the form of resource requests.




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