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5 Questions on Advanced Computer Networking

Here are the questions to which I need an answer and a comprehensive explanation within the next 48 hours.

Question 1 : Consider a packet-by-packet fair

queueing system with three logical buffers and with service rate of one unit/second.

Show the sequence of transmissions for this system for the following packet arrival

pattern. Buffer 1: arrival at time t = 0, length 2; arrival at t = 4, length 1. Buffer 2:

arrival at time t = 1, length 3; arrival at t = 2, length 1. Buffer 3: arrival at time t = 3,

length 5. You need to find out the finish tag, order of transmission and actual

packet completion times for each packet arrival.

Question 2 : Consider a user that can be in several

places (home networks) at different times. Suppose that the home networks of a user

contain registration servers where users send updates of their location at a given time.

[url removed, login to view] how a client process in a given end system can find the

location of a given user to establish a connection, for example, Internet

telephone, at a given point in time.

[url removed, login to view] that proxy servers are available, whose function is to redirect

location requests to another server that has more precise location information

about the callee. For example, a university might have such a server, which

redirects requests for PERSON-X-EMAIL to departmental servers. Explain how a

location request for PERSON-Y-EMAIL might be redirected to PERSON-Y-ALTERNATE-EMAIL

Question 3 :

[url removed, login to view] does RTSP differ from HTTP (a) in maintaining client state

information; (b) in terms of in-band, out-of-band traffic?

[url removed, login to view] RTP RFC and find out how to calculate the inter-arrival

time jitter in the RTCP reception report.

Question 4 : Two hosts want to communicate with each other. Each host is

protected by a firewall that filter packets based on packet header. Explain the rationale

for having an AH tunnel between gateways and using ESP in transport mode between

the two hosts.

Question 5 : The CEO of a medium size company noticed the emerging

market of using Internet phone. As chief information officer in the company, you are

asked to investigate and write a report on using Internet phone and the company’s

existing LAN to replace the company’s PBX. Incorporate feasible financial projects and budget as justifications and decisions for new systems.

Beceriler: Rapor Yazma, Araştırma Yazarlığı

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( 1 değerlendirme ) Townsville, Australia

Proje NO: #696338

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I am a qualified (MIT)Master of Information Technology with specialization in Cryptography and Network Security.I can comfortably do this work. Thanks

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