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Supporting Activity: Introduction to Modems
7 Write a 150- to 200-word response to the following
Digital communication has proved to be very efficient means of transporting speech, music, videos and data over different kinds of media. These media include satellite, microwave, fiber-optic, coaxial and cellular channels. One special advantage that digital communication holds over analog communication is the superior handling of noise in the channel.
8 Write a 150- to 200-word response to the following
A modem is a device that converts signals the computer understands into signals that can be accurately transmitted over the phone to another modem, which converts the signals back into their original form. Computers use modems to talk to each other. A Modem is a combination of modulator- demodulator. A typical telephone modem makes use of an ADC to convert the incoming audio from a twisted-pair line into signals the computer can understand. In a digital signal processing system, an ADC is required if the signal input is analog.
Worldwide Advertising, Inc. (WAI) has hired you as an IT consultant. WAI is a new advertising firm, and they are currently hiring staff, establishing two locations, and have a need to get their internal IT services configured. How will the servers..
phising email it is multipart what are the two parts? the html part is it inviting the recepient to click somewhere?
Explore ways to secure a wireless network and present your findings in a brief report(1 page is fine, more is ok). Talk about your own experiences with using a wireless network, including the things you do to keep the network secure.
A crypto device encrypts each message into 20 bits of ciphertext.What is the entropy of the plaintext message? What is the entropy of the ciphertext message?
Find all irreducible polynomials
Given that both engineering and front office areas use 10BaseT (twisted-pair Ethernet), how might you interconnect those two areas? Explain what meduim guarantees immunity from interference?
question which of the following statements best describes the cisco security management suite?a.it is a tool that
Diffusing surfaces are those that possess surface colour. Their colour attributes come from diffuse reflection and their geometric attribute is glossiness from specular reflection. Their colour attributes are described in terms of lightness, hu..
The networking field, to include wireless networking, defines many standards to govern network and wireless network operations.
Draw the potential network architecture of the data network for secondary campus to main campus of university (Detail and describe the function of each component in the network.
presentation to a civic organization on the 'best practices' for home and small business wireless network security. Provide an outline of the contents of that presentation which includes suggestions for best practices for home/SOHO security.
Calculate RSA signature on long message by ?rst computing what the message equals mod n, for some ?xed n and then signing this computed value only. Why or why not?
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