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Explore the impact of NATs on P2P applications. Suppose a peer with username Arnold discovers through querying that a peer with username Bernard has a file it wants to download. Also suppose that Bernard and Arnold are both behind a NAT. Try to devise a technique that will allow Arnold to establish a TCP connection with Bernard without application-specific NAT configuration. If you have difficulty devising such a technique, discuss why.
Assume that sender sends silence suppressed RTP stream of G.711 audio to receiver. During talk spurt 20 msecs chunks of quantized audio samples are encapsulated. Determine number of samples are included in each packet?
Suppose a security-aware caching resolver receives DNS RRset at time t0 with signatures on it which expire at time t1 (where t0
A consulting firm has narrowed the choice of programming language to Java and C#. Which language do you think would be more appropriate for this application and why?
Show practical and theoretical knowledge of LAN/Internet technologies
Find out how many users a cell can support for a 5% call---blocking rate. Assume that each user produces 35mE of load in the busy hour.
You have been asked to design a LAN with operation over a distance of about 100m. Compare and contrast twisted pair cable, coaxial cable, fiber-optics.
Cathi required to network three computers for herself and her roommates, Sharon and Emily. She decided that a(n) (1)___________________ network was the right kind to install in their dorm suite since a(n) (2)____________________ network was too co..
Design a communication system (block diagram) that will allow the transmission of these four sources over the telephone channel using FDM with SSB(single sideband) subcarriers
Analyze the result we obtained regarding the HTTP page response time. Collect four other statistics, of your choice, and rerun the simulation of the Simple and the Busy network scenarios.
Suppose there is a Certificate Authority (CA) with well-known public key. Further suppose every user is issued a certificate for his/her public key.
Coaxial cable is two-wire transmission system, determine the advantage of connecting outer conductor to ground? Explain the two layers: LLC & MAC.
Locate two such organizations. For each of the two, identify the need or opportunity that prompted the decision to have a physical presence.
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