COMPUTER NETWORKING

PHYSICAL LAYER AND TRANSMISSION MEDIA

INTRODUCTION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
____ are used for cellular phone, satellite, and wireless LAN communication.
A
Radio Waves
B
Micro Waves
C
Infrared waves
D
All the above
Explanation: 

Detailed explanation-1: -A cellular phone is a telecommunication device that uses radio waves over a networked area (cells) and is served through a cell site or base station at a fixed location, enabling calls to transmit wirelessly over a wide range, to a fixed landline or via the Internet.

Detailed explanation-2: -Satellites communicate by using radio waves to send signals to the antennas on the Earth.

There is 1 question to complete.