Posted: May 16th, 2015

Analyze the functions of key components in information technology infrastructure

Analyze the functions of key components in information technology infrastructure
Instructions:

1. Cellular device networks must support a large number of users from each wireless tower and so rely extensively
on multiplexing technologies. Research current cellular device technology and describe at least three different
types of multiplexing employed. You should both explain the multiplexing technique in general and describe how it
is employed within the cellular device network.

2. Noise, cross-talk, and other forms of interference are a significant issue in any communications infrastructure.
Compare and contrast how this problem would manifest for analog data transmitted with an analog signal, for
analog data transmitted with a digital signal, for digital data transmitted with an analog signal, and for digital data
transmitted with a digital signal. Be sure to compare the quality of the resulting communication as well as the
physical description.

3. Compare and contrast parity check, checksum, and hamming code. Include both error detection and error
correction considerations.