Computer Networks - Physical and Data Link Layer
In a network, why is it essential that the physical layer handles only raw bit transmission without interpreting data?
In a network, why is it essential that the physical layer handles only raw bit transmission without interpreting data?
hard📝 Application Q15 of 15
Step-by-Step Solution
Solution:
Step 1: Understand the impact of interpreting data at physical layer
If the physical layer interpreted data, it would slow down transmission and complicate hardware design.Step 2: Recognize benefits of raw bit transmission
Sending raw bits allows different devices and data types to communicate without needing the physical layer to understand data.Step 3: Consider efficiency and universality
Raw bit transmission ensures the physical medium is used efficiently and supports all kinds of data and protocols.Final Answer:
All of the above -> Option CQuick Check:
Raw bit transmission = speed + universality + efficiency [OK]
Quick Trick: Physical layer raw bits = fast, universal, efficient communication [OK]
Common Mistakes:
MISTAKES- Thinking physical layer interprets or processes data
- Ignoring efficiency and universality benefits
- Assuming physical layer handles data types
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