two questions

Q1) im doing a school project which required to display n compare prices from different web. The problem that im facing is i have no idea how to grab ppl's data which i used to refer to, so i will have timely information when ppl's web being updated.

Q2)Project 2, this is the another proj which i reli running out of idea.. not really know what lec want.

a)Simulate a 4?-4 input-buffered switch with the first-in-first-out (FIFO) scheme and find the saturation throughput. Assume each packet is equally likely to be destined for any output.
[2 marks]

b)Assume that the look-ahead scheme, where w = 2, is used to improve the switch given in (a). What is the improved saturation throughput?
[2 marks]

c)What is the saturation throughput of a 4?-4 output-buffered switch?
[1.5 marks]

d)Consider offered load r= 0.5, find the average packet delay for the switches in (a), (b), and (c), respectively.
[3 marks]

e)In general, output-buffered switches perform better than input-buffered switches. Why is it so? What is the tradeoff?
[1.5 marks]

Note:
i.To answer the above questions, you have to describe the approaches, explain the answers, and/or show the source codes that you use to find the answers.
ii.Answers without explanation will not be rewarded any mark.