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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The Broker delivers task invocation payloads to worker queues; the Result Backend stores async return values, exceptions, and task states.
A chord consists of a header task group executed in parallel, followed by a callback task that triggers only after all header tasks succeed.
A Dead Letter Queue captures poison pill messages that exceed retry limits, preventing consumer crash-loops and enabling triage.
In mTLS , both the client and server present and verify certificates, ensuring end-to-end zero-trust encryption and authentication in service meshes.
An Idempotency Key allows servers to identify and replay cached outcomes for network timeouts or retries, preventing duplicate mutations.
Twelve-Factor App Factor III requires strict separation of config from code , injecting settings via environment variables.
Client-Side Load Balancing shifts routing decisions to the caller using cached service registry endpoints, eliminating an extra network hop.
YAML anchors are defined using an ampersand ( &name ) and referenced using an asterisk alias ( *name ).