LLD - Design — Library Management System
Which of the following is the correct sequence of components for sending a notification after an event occurs?
Which of the following is the correct sequence of components for sending a notification after an event occurs?
easy📝 Architecture Q12 of 15
Step-by-Step Solution
Solution:
Step 1: Identify the logical flow of notification
First, an event is generated by the event producer, then processed by the notification service, and finally sent via the delivery channel.Step 2: Eliminate incorrect sequences
Delivery channel cannot start the process; user preferences store is not part of the sending sequence.Final Answer:
Event Producer -> Notification Service -> Delivery Channel -> Option BQuick Check:
Event -> Process -> Send = A [OK]
Quick Trick: Notifications flow from event to service to delivery [OK]
Common Mistakes:
MISTAKES- Reversing the order of components
- Including user preferences in the sending chain
- Confusing delivery channel as event source
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