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Given these requirements:

medium📝 Analysis Q13 of 15
LLD - Design — Parking Lot System
Given these requirements:
- System must handle 1000 users simultaneously
- Data must be encrypted
- Users can reset passwords
Which requirement type is "Data must be encrypted"?
ANon-functional requirement
BFunctional requirement
CBusiness requirement
DUser interface requirement
Step-by-Step Solution
Solution:

  1. Step 1: Classify the requirement "Data must be encrypted"

    This describes a quality or constraint on the system, not a specific function.

  2. Step 2: Understand requirement types

    Functional requirements describe actions; non-functional describe qualities like security.

  3. Final Answer:

    Non-functional requirement -> Option A

  4. Quick Check:

    Encryption = Non-functional requirement [OK]
Quick Trick: Security needs are non-functional requirements [OK]
Common Mistakes:
MISTAKES
  • Confusing security with functional features
  • Mixing business goals with technical details
  • Assuming all requirements are functional

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