COMPUTER NETWORKING

PHYSICAL LAYER AND TRANSMISSION MEDIA

INTRODUCTION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What are some of the limitations of wireless media?Select more than 1 answer.
A
Effective coverage depending on locations
B
Interference-microwave oven, fluorescent light
C
Security-anyone can gain access to the transmission
D
Shared medium-many users accessing results in reduced bandwidth
E
Safer than UTP cable
Explanation: 

Detailed explanation-1: -Wireless transmission can be slower and less efficient than ‘wired’ networks.

Detailed explanation-2: -Spectrum limitations The available spectrum is limited so that the same frequencies have to be reused in different locations. The cellular network is a good example. In this network the whole coverage area is divided into smaller service areas called cells (fig.

Detailed explanation-3: -Physical Obstructions. Network Range & Distance between Devices. Wireless Network Interference. Signal Sharing.

There is 1 question to complete.