Recall & Review
beginner
What is Istio in the context of Kubernetes?
Istio is a service mesh that helps manage, secure, and observe communication between microservices in Kubernetes clusters.
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intermediate
Name the three main components of Istio.
Istio has three main components: Envoy (a sidecar proxy), Pilot (traffic management), and Mixer (policy and telemetry).
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intermediate
How does Istio improve security between microservices?
Istio uses mutual TLS to encrypt traffic between services and provides fine-grained access control policies.
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beginner
What role does the Envoy proxy play in Istio?
Envoy runs as a sidecar next to each service, intercepting and managing all network traffic to and from the service.
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beginner
Why is Istio useful for observability in microservices?
Istio collects metrics, logs, and traces from service traffic, helping teams monitor and troubleshoot their applications easily.
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What is the primary purpose of Istio in Kubernetes?
✗ Incorrect
Istio manages and controls communication between microservices, unlike scheduling or storage.
Which Istio component acts as a sidecar proxy?
✗ Incorrect
Envoy runs as a sidecar proxy to handle network traffic for services.
How does Istio secure service-to-service communication?
✗ Incorrect
Istio uses mutual TLS to encrypt and secure communication between services.
Which Istio component is responsible for policy enforcement and telemetry?
✗ Incorrect
Mixer handles policy checks and collects telemetry data.
What benefit does Istio provide for observability?
✗ Incorrect
Istio gathers data to help monitor and troubleshoot microservices.
Explain what Istio is and why it is used in Kubernetes environments.
Think about how microservices talk to each other and how Istio helps.
You got /4 concepts.
Describe the role of the Envoy proxy in Istio's architecture.
Envoy runs alongside each service to handle its network traffic.
You got /4 concepts.