[Solved] Two parking lot implementations use different approaches: Implementation A uses a centralized ParkingLot class managing all spots;... In which scenario is Implementation B more advantageous? | OOP & Design Patterns

OOP & Design Patterns - Design a Parking Lot - LLD with OOP (Classes, Patterns, Extensibility)

Two parking lot implementations use different approaches: Implementation A uses a centralized ParkingLot class managing all spots; Implementation B uses distributed Level classes each managing their own spots. In which scenario is Implementation B more advantageous?

AWhen the parking lot has many levels and needs concurrent spot allocation

BWhen the system requires a global view of all spots at all times

CWhen spot allocation logic is simple and uniform across levels

DWhen the parking lot is small with only one level

Step-by-Step Solution

Solution:

Step 1: Compare centralized vs distributed management
Centralized manages all spots in one place; distributed delegates to levels.
Step 2: Analyze concurrency needs
Distributed management allows parallel spot allocation per level, reducing contention.
Step 3: Evaluate scenarios
Small single-level lots (A) don't benefit from distribution; simple uniform logic (C) favors centralization; global view (B) easier with centralized.
Final Answer:
Option A -> Option A
Quick Check:
Distributed design suits multi-level concurrency [OK]

Quick Trick: Distributed management enables concurrency in multi-level lots [OK]

Common Mistakes:

MISTAKES

Choosing centralized for multi-level concurrency
Ignoring concurrency benefits of distribution
Assuming global view requires distributed design

Trap Explanation:

PITFALL

Candidates often overlook concurrency advantages of distributed management in large systems.

Interviewer Note:

CONTEXT

Evaluates trade-offs between centralized and distributed design in scalability.

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Solution Trace

More OOP & Design Patterns Quizzes

In which scenario is Implementation B more advantageous?

Step 1: Compare centralized vs distributed management

Step 2: Analyze concurrency needs

Step 3: Evaluate scenarios

Final Answer:

Quick Check:

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