LLD - Design — Parking Lot System
Consider a system where data enters through an API gateway, passes through a processing service, and exits via a notification service. Which sequence correctly shows the entry and exit flow?
Consider a system where data enters through an API gateway, passes through a processing service, and exits via a notification service. Which sequence correctly shows the entry and exit flow?
medium📝 Analysis Q13 of 15
Step-by-Step Solution
Solution:
Step 1: Identify the entry point
The API Gateway is where data enters the system, so it must be first in the flow.Step 2: Follow the data path to exit
Data moves from API Gateway to Processing Service, then exits via Notification Service.Final Answer:
API Gateway -> Processing Service -> Notification Service -> Option DQuick Check:
Entry to exit = API Gateway to Notification Service [OK]
Quick Trick: Follow data path from entry to exit [OK]
Common Mistakes:
MISTAKES- Reversing the order of services
- Confusing exit with entry points
- Ignoring the processing step
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