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Question 2 of 95

Explain the difference between synchronous and asynchronous messaging.

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Re-explain

Synchronous messaging:

  • Sender waits for a response before continuing
  • Blocking operation
  • Direct communication (like HTTP request/response)
  • Example: REST API calls, gRPC
    Asynchronous messaging:
  • Sender doesn't wait for a response
  • Non-blocking operation
  • Messages are typically queued
  • Example: Message queues, event streams
# Synchronous
response = api_client.get_user(user_id)  # Blocks until response
process_user(response)
# Asynchronous
queue.publish("user_requested", {"user_id": user_id})  # Returns immediately
# Consumer processes this later
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