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Given the narrow (usable) audio bandwidth of the telephone transmission facility, nominal SNR of 56 dB (400,000), and a distortion level of <0.2%:
a. Determine the theoretical maximum channel capacity (Kbps) of traditional telephone lines (POTS)?b. Compute actual maximum channel capacity?
Be sure to allow for spaces and punctuation between words. How long would it take to transmit the text over a T-1 line at 1.544Mbps and a fibre optic link at 2.488Gbps?
Describe what types of problems could result from having a mix statically and dynamically assigned addresses on the same network.
Provide a network design, a drawing of a solution to address the following: Transferring of videos and music files between computers, Sharing Internet connection, one laser printer, and one photo printer
Try to create a technique which will allow Arnold to establish a TCP connection with Bernard without application-specific NAT configuration. If you have difficulty devising such technique, explain why.
Assume that N Ethernet stations, all trying to send at same time, need N/2 slot times to sort out who transmits next. Describe available bandwidth as function of N.
If the poll bit is on in the sixth frame, what will be the N(R) count back from the secondary after the last frame? Assume error-free operation.
A draws K=0 and B draws K=2n-1 in exponential backoff protocol. Ignore jam signal and interframe space and suppose that signal propagation speed in medium is 2*108 m/sec. When does station A detects first collision?
Which kind of security drill do you believe is the most typical in an organization? Which type of security drill do you believe is the most effective? Why?
Suppose that initial values of cache tags and cache lines are completely arbitrary, illustrate which accesses will lead to hit, and which will cause to miss.
Explain whether this is still true today, and write down factors are moving wireless NICs into more dominant role, if any.
What size of packet will result in the last bit being transmitted just as the first bit of the packet arrives at the "far end" of the cable?
Explain a comprehensive disaster recovery plan for hypothetical network consisting of 20 desktop computers in domain network with 2 network servers and 2 application servers.
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