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The Figure is the top-level container holding everything (canvas, size, dpi). An Axes is the actual bounding box with coordinates where graphs are plotted.

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Oct 25, 2026

Quiz: What is the core architectural principle of a microservice in distributed systems?

Microservices emphasize loose coupling , high cohesion , bounded contexts, and independent database ownership per service.

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Oct 25, 2026

Quiz: What is the primary role of a Protocol Buffers (`.proto`) definition file in gRPC architecture?

.proto files act as the single source of truth IDL, compiling via protoc into type-safe client stubs and server interfaces across languages.

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Oct 25, 2026

Quiz: In Event-Driven Architecture (EDA), what differentiates a message queue (RabbitMQ) from a distributed commit log (Apache Kafka)?

RabbitMQ is a traditional smart broker that routes and removes acknowledged messages. Kafka retains immutable event streams where multiple consumer groups replay from offsets.

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Oct 25, 2026

Quiz: In Celery distributed task architecture, what is the role of the Broker versus the Result Backend?

The Broker delivers task invocation payloads to worker queues; the Result Backend stores async return values, exceptions, and task states.

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Oct 25, 2026

Quiz: What is the purpose of an API Gateway (e.g., Kong, Traefik, Envoy) in a microservices architecture?

An API Gateway shields internal microservices by consolidating perimeter concerns: authentication, SSL, rate-limiting, and client protocol translation.

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