Admin Know-IT-All Question #37

Admin Know-IT-All Question #37




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"It has been said that democracy is the worst form of government except all the others that have been tried."

- Sir Winston Churchill





Today's Know-IT-All answer is:
a. How much data a PC can receive before sending back an ACK packet

Learn more:

In TCP/IP's settings, the TCP receive window size parameter governs how much data a system can receive without sending back an acknowledgment (ACK) packet. The larger the window, the more data can be sent in one burst, and the faster the overall data rate. A window size of 4 Kbytes would mean the system could receive up to 4 Kbytes of data without having to send back an ACK packet. The faster the link, the bigger the window can be without adverse effects (dropped packets, lost data, etc.). During the three-way handshake at the start of every TCP connection, the window size for the connection is negotiated as being the smallest of the window sizes between both hosts. If both machines have a window size of 32 Kbytes, for instance, the window will be 32 Kbytes, but if the server has a window of 32 Kbytes and the remote host a size of 2 Kbytes (as a client with a dial-up connection might), the window will be set to 2 Kbytes ...

>> Read Serdar Yegulalp's full article entitled: Open the TCP receive window.

>> Learn how to watch dropped IP packets.

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