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Cloud / Istio Interview questions

What is Istio?

Istio is an open source service mesh that layers transparently onto existing distributed applications. Istio's powerful features provide a uniform and more efficient way to secure, connect, and monitor services. Istio is the path to load balancing, service-to-service authentication, and monitoring - with few or no service code changes. It gives you:

  • Secure service-to-service communication in a cluster with mutual TLS encryption, strong identity-based authentication and authorization
  • Automatic load balancing for HTTP, gRPC, WebSocket, and TCP traffic Fine-grained control of traffic behavior with rich routing rules, retries, failovers, and fault injection
  • A pluggable policy layer and configuration API supporting access controls, rate limits and quotas
  • Automatic metrics, logs, and traces for all traffic within a cluster, including cluster ingress and egress

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