SophiaPretty

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About SophiaPretty

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Teaching Since: Jul 2017
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  • MBA,PHD, Juris Doctor
    Strayer,Devery,Harvard University
    Mar-1995 - Mar-2002

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  • Manager Planning
    WalMart
    Mar-2001 - Feb-2009

Category > Computer Science Posted 15 Nov 2017 My Price 10.00

Computer Systems Architecture

Please see attached document. Let me know if you are able to help. Thank you.

Computer Systems Architecture

 

 

Q1:   Explain and compare Interrupts and polling. Compare hardware interrupts and software interrupts.

 

 

Q2:   In the following charts, (a) if MOS >=4, which codec will you choose to reach the best bandwidth utilization. Explain the reason with sufficient details. (b) Between G.711 5 ms frames and G.711 20 ms frames, which one has better bandwidth utilization? (c) Between G.711 20 ms frames and G.729 20 ms fames, which one has better bandwidth utilization? **Correction to snapshot: G.729 20 ms codec should have 44 + 20 = 64 bytes, since in 20 ms, there are only 20 bytes of VoIP payload.

 

 

 

 

 

 

 

Q3:   (a) What is Nyquist Sampling Theory? (b) T1 channel bank has 24 channels, plus 1 framing bit. Each channel has 8 bits / sample. What is T1 channel rate? Show your calculation, instead of just the results.

 

 

 

 

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SophiaPretty
(5)
Status NEW Posted 15 Nov 2017 08:11 AM My Price 10.00

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