In a service mesh, what is the role of the Control Plane?

In a service mesh, what is the role of the Control Plane?

• A. Serves as the management hub, both configuring and redirecting proxies
• B. Acts as the data plane proxies
• C. Stores user data
• D. Encrypts payloads

Answer: (A)

In a service mesh, the Control Plane acts as the management hub that defines how traffic should flow and which rules apply, then pushes those decisions to the proxies in the data plane. It handles configuration for routing, service discovery, retries, fault injection, and security policies, and it distributes certificates and other identity information so services can communicate securely. As services scale and change, the Control Plane updates the proxies with new rules and routes in real time. The data plane is made up of the sidecar proxies that actually intercept and forward requests between services, enforcing the policies the Control Plane provides. The Control Plane doesn’t handle the actual user data, nor does it encrypt payloads itself—encryption is implemented by the proxies under the policies the Control Plane configures.

In a service mesh, the Control Plane acts as the management hub that defines how traffic should flow and which rules apply, then pushes those decisions to the proxies in the data plane. It handles configuration for routing, service discovery, retries, fault injection, and security policies, and it distributes certificates and other identity information so services can communicate securely. As services scale and change, the Control Plane updates the proxies with new rules and routes in real time.

The data plane is made up of the sidecar proxies that actually intercept and forward requests between services, enforcing the policies the Control Plane provides. The Control Plane doesn’t handle the actual user data, nor does it encrypt payloads itself—encryption is implemented by the proxies under the policies the Control Plane configures.