KCNA Practice Test

KCNA Practice Test practice questions, page 8 of 14, with answer review and explanations.

Question 36

What is a probe within Kubernetes?

  1. A monitoring mechanism of the Kubernetes API.
  2. A pre-operational scope issued by the kubectl agent.
  3. A diagnostic performed periodically by the kubelet on a container.
  4. A logging mechanism of the Kubernetes API.

Question 37

Which Kubernetes feature would you use to guard against split brain scenarios with your distributed application?

  1. Replication controllers
  2. Consensus protocols
  3. Rolling updates
  4. StatefulSet

Question 38

What feature must a CNI support to control specific traffic flows for workloads running in Kubernetes?

  1. Border Gateway Protocol
  2. IP Address Management
  3. Pod Security Policy
  4. Network Policies

Question 39

What is the main role of the Kubernetes DNS within a cluster?

  1. Acts as a DNS server for virtual machines that are running outside the cluster.
  2. Provides a DNS as a Service, allowing users to create zones and registries for domains that they own.
  3. Allows Pods running in dual stack to convert IPv6 calls into IPv4 calls.
  4. Provides consistent DNS Names for Pods and Services for workloads that need to communicate with each other.

Question 40

Scenario: You have a Kubernetes cluster hosted in a public cloud provider. When trying to create a Service of type LoadBalancer, the external-ip is stuck in the "Pending" state. Which Kubernetes component is failing in this scenario?

  1. Cloud Controller Manager
  2. Load Balancer Manager
  3. Cloud Architecture Manager
  4. Cloud Load Balancer Manager