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What are advantages and disadvantages of combining the session presentation application layer in the osi model into one single application layer in internet layer?
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1 7466How much is the signal amplified? and what is the total gain? when a signal is passed through three cascaded amplifiers, each with a 5 dB gain.
3 21127A device is sending out data at the rate of 2000 bps. How long does it take to send out 100 bits? How long does it take to send out a singal character (8 bits)? How long does it take to send a file of 100,000 characters?
1 25563If the bandwidth of the channel is 8 Kbps, How long does it take to send a frame of 200,000 bits out of this device?
4 26088A signal with 300 milliwatts power passes through 10 devices, each with an average noise of 3 microwatts. What is the SNR? What is the SNRdb?
1 4726A computer monitor has a resolution of 1300 by 1000 pixels. If each pixel uses 1024 colors, how many bits are needed to send the complete contents of a screen?
4 21553
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