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Which aspect of the parking lot problem best demonstrates the need for abstraction in LLD?

easy🧠 Conceptual Q2 of Q15
LLD - Design — Parking Lot System
Which aspect of the parking lot problem best demonstrates the need for abstraction in LLD?
ACreating a user interface for payment
BDesigning the parking lot's physical layout
CHandling different types of vehicles with common operations
DWriting SQL queries for vehicle data
Step-by-Step Solution
Solution:
  1. Step 1: Identify abstraction in the parking lot context

    Abstraction means hiding details and showing only essential features, like treating cars and bikes as vehicles.
  2. Step 2: Match abstraction to problem aspect

    Handling different vehicle types with shared operations (like park, exit) shows abstraction well.
  3. Final Answer:

    Handling different types of vehicles with common operations -> Option C
  4. Quick Check:

    Abstraction = common operations for different vehicles [OK]
Quick Trick: Abstraction hides details, shows common features [OK]
Common Mistakes:
MISTAKES
  • Confusing abstraction with UI design
  • Focusing on physical layout instead of behavior
  • Thinking SQL queries demonstrate abstraction

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