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    Need Help with a Major Computer Question


    Hey guys at my work our current IT guy is on leave so i've had to fill in for him. I have this question about Application layers and TCP connection and was wondering if you could help answer it for me.

    Suppose an application layer entity wants to send an L-byte message to its peer process, using an existing TCP connection. The TCP segment consists of the message plus 20 bytes of header. The segment is encapsulated into an IP packet that has an additional 20 bytes of header. The IP packet in turn goes inside an Ethernet frame that has 18 bytes of header and trailer. What percentage of the transmitted bits in the physical layer correspond to message information, if:

    L = 400 bytes, L = 800 bytes and L = 1400 bytes?
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    Who are you trying to fool?

    IMHO, no IT guy would need to know this off the top of their head....I believe this is a homework question that you are trying to get help with.

    Plus, this should have been posted in Networking , not Windows Help. [requesting it be moved]
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    Pretty much i just need to know the answer.

    And if this needs to be moved then can someone please move it. Thanks.
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    Moved from Windows


    I'm sure you also need to show your work.

    Enjoy. This particular PDF seems to be related to a school in Australia...
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    Can anyone help with this question? Just need to know the answer!

    And yes i'm from a school in Aus

    Comments on this post

    • requinix agrees : that's why I chose it :)
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    look HERE...goto question #19 for solution.

    Ah, Requinix , you beat me to it again
    Last edited by DonR; August 15th, 2013 at 12:23 AM.
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    LoL, well played gents. Next time just say it's a homework problem you can't figure out.

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