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Why is it important to handle race conditions in a reservation and hold system when multiple users try to hold the same item simultaneously?

hard🧠 Conceptual Q10 of Q15
LLD - Design — Library Management System
Why is it important to handle race conditions in a reservation and hold system when multiple users try to hold the same item simultaneously?
ATo allow all users to hold the item regardless of availability
BTo prevent multiple users from holding the same item at the same time
CTo delay hold expiration indefinitely
DTo increase system response time
Step-by-Step Solution
Solution:
  1. Step 1: Understand race condition impact

    Without handling, multiple users may hold the same item causing conflicts.
  2. Step 2: Importance of synchronization

    Proper locking or atomic operations ensure only one user holds the item at a time.
  3. Final Answer:

    To prevent multiple users from holding the same item at the same time -> Option B
  4. Quick Check:

    Race condition handling = prevent double holds [OK]
Quick Trick: Prevent race conditions to avoid double holds [OK]
Common Mistakes:
MISTAKES
  • Allowing multiple holds on same item
  • Ignoring synchronization needs
  • Confusing race conditions with performance issues

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