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How does the layered approach in network design facilitate technology upgrades?

easy📝 Conceptual Q2 of 15
Computer Networks - OSI and TCP/IP Models
How does the layered approach in network design facilitate technology upgrades?
ABy combining multiple functions into a single upgrade
BBy requiring all layers to be redesigned simultaneously
CBy removing the need for compatibility between layers
DBy allowing changes in one layer without affecting others
Step-by-Step Solution
Solution:

  1. Step 1: Understand upgrade challenges

    Upgrading network technology can be complex if layers are tightly coupled.

  2. Step 2: Role of layered design

    Layered models isolate functions so upgrades can target one layer without disrupting others.

  3. Final Answer:

    By allowing changes in one layer without affecting others -> Option D

  4. Quick Check:

    Layer isolation enables easier upgrades [OK]
Quick Trick: Layer separation enables targeted upgrades without full redesign [OK]
Common Mistakes:
MISTAKES
  • Assuming all layers must be changed together
  • Believing layers do not need to be compatible
  • Thinking upgrades combine multiple functions at once

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