Understand Connectivity Between Pods CKA Practice Questions (Page 4)

Questions 16–20

1. 16foundation · easy

   What is the primary purpose of a Kubernetes NetworkPolicy?

   • ATo provide DNS resolution for Services.
   • BTo load balance traffic between Pods.
   • CTo control ingress and egress traffic to and from Pods.
   • DTo encrypt traffic between Pods.
   Reveal Solution Discussion Select an answer first
2. 17foundation · easy

   Which component is responsible for enforcing NetworkPolicy rules in a cluster?

   • AThe kube-proxy
   • BThe CNI plugin
   • CThe API server
   • DThe kubelet
   Reveal Solution Discussion Select an answer first
4. 18foundation · easy

   How does a Service select which Pods to route traffic to?

   • ABy using the namespace of the Pods.
   • BBy using a label selector that matches Pod labels.
   • CBy using the Pods' IP addresses listed in the Service definition.
   • DBy using the container image name.
   Reveal Solution Discussion Select an answer first
5. 19application · medium

   A Pod contains two containers: a web server and a metrics exporter. The metrics exporter needs to scrape metrics from the web server. How can the metrics exporter reach the web server?

   • ABy using a Service that points to the web server.
   • BBy using the web server's Pod IP.
   • CBy using localhost with the web server's port.
   • DBy using the node's IP address.
   Reveal Solution Discussion Select an answer first
6. 20foundation · easy

   What is a key requirement of the Kubernetes networking model for Pod-to-Pod communication?

   • APods must be in the same namespace to communicate.
   • BAll Pods must be on the same node to communicate.
   • CPods must use a Service to communicate with each other.
   • DPods can communicate with each other without NAT, using their own IP addresses.
   Reveal Solution Discussion Select an answer first