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In a system design diagram, the exit flow is incorrectly shown as the entry point. What is the likely impact of this error?

medium📝 Analysis Q14 of Q15
LLD - Design — Parking Lot System
In a system design diagram, the exit flow is incorrectly shown as the entry point. What is the likely impact of this error?
AUsers or data may enter the system incorrectly, causing failures
BThe system will run faster due to reversed flow
CThere will be no impact as entry and exit are interchangeable
DThe system will automatically correct the flow
Step-by-Step Solution
Solution:
  1. Step 1: Understand the role of entry and exit points

    Entry points are where users or data enter; exit points are where they leave. Mixing them causes confusion.
  2. Step 2: Analyze the impact of reversing them

    If exit is shown as entry, the system may receive data incorrectly, leading to failures or errors.
  3. Final Answer:

    Users or data may enter the system incorrectly, causing failures -> Option A
  4. Quick Check:

    Wrong flow = system errors [OK]
Quick Trick: Entry and exit points are NOT interchangeable [OK]
Common Mistakes:
MISTAKES
  • Assuming reversed flow improves performance
  • Thinking system auto-corrects flow
  • Ignoring the importance of correct flow direction

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