Istio Service Mesh provides built-in capabilities for managing service-to-service communication within Kubernetes environments.
The Istio documentation highlights default capabilities including:
Service discovery (C): Automatic detection and routing between services.
Mutual TLS (mTLS) encryption (E): Secure communication between services by default.
Istio does not provide:
Multi-cluster backup/restore (A) — handled by tools such as Velero.
Cluster conformance validation (B).
Advanced container runtime (D) — container runtime is handled by container engines such as containerd.
Thus, the correct answers are Service discovery and Connection encryption .
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