COMPUTER NETWORKING

DATA LINK LAYER WIRED NETWORKS

DATA LINK CONTROL DLC

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The acoustic channel is used for which of the following?
A
UHF communications
B
single-sideband communication
C
television communications
D
person-to-person voice communications
Explanation: 

Detailed explanation-1: -Typical communications applications include wireless systems using RF and microwave, MIMO, wireless LAN’s, mobile phones, base station monitoring, surveillance, satellite communications, bus testing, cable testing, antenna and transmitter testing.

Detailed explanation-2: -Rectifier-which converts AC to DC, hence not a part of a communication system.

Detailed explanation-3: -The thermal noise of a noisy resistor is proportional to bandwidth and temperature only, hence the power remains unchanged even if we double the values of given resistors.

There is 1 question to complete.