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Quiz 1 - IS 410 Questions and Correct Answers/ Latest Update / Already Graded

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Quiz 1 - IS 410 Questions and Correct Answers/ Latest Update / Already Graded

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Institution IS 410

Course IS 410

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Quiz 1 - IS 410 Questions and Correct Answers/ Latest Update / Already Graded

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Quiz 1 - IS 410 Questions and Correct
Answers/ Latest Update / Already Graded
Layered approach

Ans: physical infrastructure -> Network protocols & commun.
software -> Applications

Analog signal

Ans: continuously varying (we live in an analog world)
analog data examples: light, voice, video
-Our sensations of pictures, sounds etc. are analog

Frequency:

Ans: Number of seconds per cycle
-Analog signals have continuously repeating waveforms

Hertz (Hz)

Ans: Cycles per second
1 Khz -> 1000 Hz
1 Mhz -> 1000 Khz
1 Ghz -> 1000 Mhz

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Digital Signals

Ans: -Discrete or quantized
-Used for processing, storage, and transmission

Sampling

Ans: -analog is sampled at regular intervals to generate a
digital signal, which approximates the the analog waveform
-original analog info may be recovered from the digital signal

Digital convergence

Ans: Access to data, voice and video through single, digital
user interface.

advantages of digital tech

Ans: -VLSI and the cost of digital circuitry
-Error Correction and Control: A digital signal, since it is a
pattern of bits, can be checked for errors, and the original
signal may be regenerated.
-Data integrity and reliability in transmission: Less susceptible
to noise, as original signal can be recovered from distorted
signal.
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Number of pages: 9
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Type: Exam (elaborations)
Contains: Questions & answers

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