The answer is 2 frequencies.
A Full-Duplex QAM 64 K Modem uses two frequencies. One frequency is used for upstream and the other for downstream. A variety of common QAM forms are available and include, 16 QAM, 32 QAM, 64 QAM, and 256 QAM. For example, for domestic broadcast use, 64 and 256 QAM are used for cable modem and digital cable TV. The modulation scheme for this modem uses both amplitude and phase.
Answer:
a computer that requests a service.
Answer:
The answer is below
Explanation:
Computer System is widely known for its ability to perform its functions faster by giving out information.
The computer system operation follows certain principles, some of which are:
1. It makes use of the OPERATING SYSTEM to link the hardware and the software together, without it, the computer system is useless.
2. It works with INPUT DEVICES such as keyboards or stylus. Without input devices, there is no way humans can communicate with the computer system
3. It works with OUTPUT DEVICES such as monitors and speakers. Without output devices, there is no way computers can communicate or give back information to humans.
4. It works with the NETWORK such as LAN or WIFI to provides the sharing of data files to other users or computers. Without the network, the computer system can only work within certain spaces, with no way to share data or files with others far away.
Answer:
B) contextual
Explanation:
Contextual advertising is a form of targeted advertising for advertisements appearing on websites or other media.
For example:
Timothy was reading tournament results of the football World Cup matches on Infogoalistic.com. As he was going through the results, an advertisement of new football studs popped up. This is an example of <u>contextual</u> advertising.