LLD - Design — Library Management System
A notification system uses a queue to handle event processing but notifications are delayed significantly. Which is the most likely cause?
A notification system uses a queue to handle event processing but notifications are delayed significantly. Which is the most likely cause?
medium📝 Analysis Q14 of 15
Step-by-Step Solution
Solution:
Step 1: Analyze queue role in notification system
Queue buffers events to handle load. If overloaded, it causes delays in processing notifications.Step 2: Evaluate other options
Missing user preferences or instant delivery does not cause delay; too few events would reduce load, not increase delay.Final Answer:
Queue is overloaded with too many events -> Option AQuick Check:
Queue overload = delay [OK]
Quick Trick: Delays often mean queue overload, not missing data [OK]
Common Mistakes:
MISTAKES- Blaming delivery channel for delays
- Assuming missing preferences cause delay
- Thinking fewer events cause delays
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