[Solved] Why are digital signals generally preferred over analog signals in modern communication systems? — Ans: Digital signals are less affected by noise and easier to store | Computer Networks

Computer Networks - Physical and Data Link Layer

Why are digital signals generally preferred over analog signals in modern communication systems?

AAnalog signals use less bandwidth

BAnalog signals are always faster

CDigital signals cannot be encrypted

DDigital signals are less affected by noise and easier to store

Step-by-Step Solution

Solution:

Step 1: Compare noise resistance
Digital signals are less affected by noise because they use discrete levels, making error detection easier.
Step 2: Consider storage and processing
Digital signals can be stored and processed efficiently using computers and digital devices.
Final Answer:
Digital signals are less affected by noise and easier to store -> Option D
Quick Check:
Digital preferred for noise resistance and storage [OK]

Quick Trick: Digital signals resist noise and store well [OK]

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