Coding schemes are groups of bits that translate into the alphabet of any given system.

INTRODUCTION

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Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]

Coding schemes are groups of bits that translate into the “alphabet” of any given system.

A	True
B	False
C	Either A or B
D	None of the above

Explanation:

Detailed explanation-1: -Coding schemes are groups of bits that translate into the “alphabet” of any given system. ASCII is the least popular code for data communications. The predominant method of transferring information internally in a computer is via parallel mode. Serial mode transmission is much faster than parallel mode transmission.

Detailed explanation-2: -Biphase encoding is widely used in LANs, at high data rates (up to 10Mbps).

Detailed explanation-3: -Although single-mode optical fiber holds advantages in terms of bandwidth and reach for longer distances, multimode optical fiber easily supports most distances required for enterprise and data center networks, at a cost significantly less than single-mode.

Detailed explanation-4: -Propagation delay is negligible with satellite transmission. One form of interference with satellite transmission is called raindrop attenuation in which the transmissions are absorbed by heavy rain. Fiber optic cable can only be used on LANs. Radio, microwave and satellite are all examples of guided media.

There is 1 question to complete.

COMPUTER NETWORKING

PHYSICAL LAYER AND TRANSMISSION MEDIA

INTRODUCTION