Answer:
b. you need it to do your homework
Explanation:
Answer:
Option c.
Explanation:
AM refers to the amplitude modulation.
AM refers to the modulation of a wave used as a means of broadcasting an audio signal by combining it with a radio carrier wave and varying its amplitude
An increase in message amplitude, Am, results in a higher AM Index.
An AM index between 0 and 1 indicates the received modulated signal will have minimal distortion.
So, option c. is correct.
Answer:
There could be a collision if a hidden node problem occurs.
Explanation:
CSMA/CA(carrier sense multiple access/ collision avoidance) is a multiple access method in wireless networking, that allows multiple node to transmit. Collision avoidance of this method is based on preventing signal loss or downtime as a result of collision of transmitting multi signals.
If a node at step 4(transmit frame) sends the first frame, the node still needs to send a RTS(request to send) and to receive a Clear to send (CTS) from the WAP, the is to mitigate the issue of hidden node problem as all frame are treated as unit, so other listening nodes, not detected would seek to connect and transmit as well.
2^8 = 256 hence use 8 bits
Answer:
False
Explanation:
Input/output devices do NOT transfer information in only one direction.
Input devices receives the information while the output devices sends the information. The direction of the information being transferred between the input and output is NOT just in one direction.
Examples of input devices are keyboard, mouse, joy stick, scanner, etc.,
Examples of output devices are monitor (LED, LCD, CRT etc), printers (all types), plotters, projector, speaker(s), head phone, etc.
