Use Kubernetes Architecture, Networking, Storage, Service Mesh, and Helm VCAP-VCF-VKS Practice Questions (Page 3)

Questions 11–15

1. 11application · medium

   An organization has deployed a service mesh (Istio) to its Kubernetes cluster. The development team wants to gradually shift a percentage of traffic from version v1 of a microservice to version v2. They want to monitor the success rate of the v2 service before increasing the traffic percentage. Which Istio custom resource should the team configure to achieve this?

   • AA DestinationRule with a connection pool setting.
   • BA NetworkPolicy that allows traffic only to the v2 Pods.
   • CA VirtualService with a weight-based HTTP route.
   • DA Gateway resource that exposes the v2 service to external traffic.
   Reveal Solution Discussion Select an answer first
2. 12foundation · easy

   Which Kubernetes storage object defines a class of storage with a provisioner and parameters, enabling dynamic provisioning of PersistentVolumes?

   • AStorageClass
   • BPersistentVolume
   • CPersistentVolumeClaim
   • DConfigMap
   Reveal Solution Discussion Select an answer first
4. 13application · medium

   A Kubernetes cluster has a control plane node and three worker nodes. An application is deployed with three replicas. One of the worker nodes fails. The kubelet on the failed node is no longer reporting to the control plane. What is the expected behavior of the Kubernetes control plane?

   • AThe control plane marks the node as NotReady and reschedules the Pods that were running on it to other healthy nodes.
   • BThe control plane leaves the Pods running on the failed node and does not take any action.
   • CThe control plane restarts the failed node automatically using the kubelet.
   • DThe control plane immediately terminates the Pods on the failed node and creates new ones on the same node.
   Reveal Solution Discussion Select an answer first
5. 14application · medium

   A company is deploying a Helm chart that includes a Deployment and a Service. The chart is being deployed to a Kubernetes cluster that has a single control plane node and multiple worker nodes. The team wants to ensure that the Deployment's Pods are spread across the worker nodes to achieve high availability. Which Kubernetes feature should the team configure in the chart?

   • AA NetworkPolicy that allows traffic only to Pods on different nodes.
   • BA PersistentVolumeClaim that is bound to a volume on each node.
   • CA Service of type ClusterIP that load-balances across the Pods.
   • DA PodAntiAffinity rule that prefers to place Pods on different worker nodes.
   Reveal Solution Discussion Select an answer first
6. 15foundation · easy

   Which component runs on every worker node and is responsible for starting, stopping, and maintaining the containers in pods assigned to that node?

   • Akubelet
   • Bkube-apiserver
   • Cetcd
   • Dkube-scheduler
   Reveal Solution Discussion Select an answer first