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.
To measure the pollution of a particular river, one must take the sample of the river and take the sample of pure water, then draw the conclusion, it will tell the amount of pollution in the river water.
<h3>What is pollution?</h3>
Pollution is the mixing of unwanted or harmful things in any substance or compound.
Water pollution is the mixing of toxics and chemicals in water.
Thus, to measure the pollution of a particular river, one must take the sample of the river and take the sample of pure water, then draw the conclusion, it will tell the amount of pollution in the river water.
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Answer:C)Information management
Explanation: Information management is the technique through which the organization and handling of the the data/ information takes place.This technique is made for helping the organization and their business for the supporting the function and processes.
The facilities provided by the information management system is development, management, designing, innovation etc.
Other options are incorrect because they are used for the coding process,technology and governing of the data, hence no management activity is done by them.Thus, the correct option is option(C).
Answer:
Explanation:
A cursor is a pointer which indicates the position of the mouse on a computer's display monitor.
An insertion point is a location in a document where additional information is inserted when the user begins to type.
A mouse pointer is an image used to activate/control certain elements in a GUI (graphical user interface).
I know you asked for the differences, though i thought I'd add a similarity. All of these 3 things are similar, as they show where the position of the info/mouse is. :)
Hope this helps!
-Biscuit08
Answer:
A
Explanation:
A hacker searching for open ports denotes vulnerability of computer (to hacking).
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