KCNA Question 31

Community Discussion

Written by other learners. Comments can disagree with the marked answer — check the official documentation when in doubt.

• Chose D1

  A service mesh typically includes the following common components: Data Plane: Sidecar proxies for traffic management. Control Plane: Configuration management, service discovery, policy management, and telemetry. Security: mTLS, authentication, and authorization. Traffic Management: Routing, load balancing, retries, and timeouts.

• Chose D2

  In a service mesh architecture, service proxies (such as Envoy, Linkerd proxy, or Istio sidecar) are deployed alongside each service instance to handle communication between services. The control plane consists of various components responsible for configuring, managing, and monitoring the behavior of the service proxies, including features like traffic routing, load balancing, encryption, authentication, and observability. Together, these components enable advanced traffic management, security, and observability capabilities in a distributed microservices environment.

• 3

  I can confirn that D is the corrct answer, anyway the question is a bit tricky, because the data plan can be considered as the set of service proxies so even the C answer could be considered