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Consider a simple protocol for transferring files over a link. After some initial negotiation, A sends data packets of size 1 KB to B; B then replies with an acknowledgment. A always waits for each ACK before sending the next data packet; this is known as stop-and-wait. Packets that are overdue are presumed lost and are retransmitted.
(a) In the absence of any packet losses or duplications, explain why it is not necessary to include any "sequence number" data in the packet headers.
(b) Suppose that the link can lose occasional packets, but that packets that do arrive always arrive in the order sent. Is a 2-bit sequence number (that is, N mod 4) enough for A and B to detect and resend any lost packets? Is a 1-bit sequence number enough?
(c) Now suppose that the link can deliver out of order, and that sometimes a packet can be delivered as much as 1 minute after subsequent packets. How does this change the sequence number requirements?
Implement the following Set class. A set is a collection of items with no duplicates. The following class implements a set of integers.
Find the grammar generated by the language L=(a^i b^j | i!= j)
Assuming the FIFO buffering memory can be redistributed freely, suggest a reshuffling of the buffers that avoids the above problem, and explain why it does so.
Compute and display the height and cost of the container. Use the following formulas, where V is the volume, r is the radius, h is the height, and C is the cost.
300 words or more in apa format with United States References only Research on the general internet or in the University Library and find a Business Continuity or Disaster Recovery article online relating to records recovery
Describe cognitive social phenomena that occur specifically to the context of the MMORPG that wouldn't happen in a face-to-face chess game. Compare and contrast the MMORPG interaction environment and a face-to-face environment where chess is being..
A+ Support Skills: File Management Take a screenshot of the Jellyfish picture in the search results box. Take a screenshot of the C:\ drive when logged in as Bobby.
Developing a graphical user interface in programming is paramount to being successful in the business industry. This project incorporates GUI techniques with other tools that you have learned about in this class.
Use the equation pi/4 = tan^-1(1/2) + tan^-1(1/3) to evaluate the value of pi. Howmany iterations does it require? Comment on the difference. Submit matlab code.
Your company is creating a new network application that allows employees to view their pay checks subs electronically via the Internet. Should this application be connectionless or connection oriented? Defend your answer, and using Visio draw a serie..
Design and implement a Java program that will read a file containing numbers and compute the following statistics: the range (low, high), the average and the median (middle number).
Write a term paper on Virtual Team Management & Success that covers all the sections covered in the class. It is highly encouraged to start working on your paper from week one. The paper should be at least 14 pages excluding cover page, abstra..
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