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Answer the following problems.

problem 1) prepare down two reasons that the Internet is the internetwork (rather than one massive, homogeneous network).

problem 2) Why was the original TCP/IP protocol split into two separate protocols, TCP and IP?

problem 3) Describe how the NAT on the router in your home network violates fate sharing.

problem 4) You are in charge of managing your organization's Ethernet and your boss asks you to double its length to accommodate users in a newly constructed extension to your building. What are the two things you can change to make sure that collision are still detected?

problem 5) Assume a 1-Gbps point-to-point link is being set up between the Earth and a new lunar colony. The distance from the moon to Earth is approximately 385,000 km and data travels over the link at the speed of light (3 x 108 m/s).

(a) Compute the minimum round-trip time (RTT) for the link.

(b) Using RTT as the delay, compute the bandwidth delay product for the link. (For simplicity, suppose 1MB = 106 bytes.)

(c) What is the importance of the bandwidth x delay product computed in (b)?

(d) A camera on lunar base takes pictures of the Earth and saves them locally. Assume Mission Control on Earth wishes to download the most current image, which is 25 MB (again, assume 1MB = 106 bytes). What is the minimum amount of time that will elapse between when request for the picture goes out and the transfer is finished? (Suppose that the size of the request is so small that its transmission time over a 1 Gbps link is negligible.)

Computer Network & Security, Computer Science

  • Category:- Computer Network & Security
  • Reference No.:- M96678

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