Lesson11APCSP.docx - Lesson 11 Packets and Making a...

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Lesson 11: Packets and Making a Reliable Internet Objectives: Students will be able to: Students will be able to: Explain why protocols are necessary to overcome the underlying unreliability of the Internet. Justify the need for acknowledgements and packet numbering in TCP. Develop a protocol for reliable communication on the Internet. Vocabulary Packets - Small chunks of information that have been carefully formed from larger chunks of information. TCP - Transmission Control Protocol - provides reliable, ordered, and error-checked delivery of a stream of packets on the internet. TCP is tightly linked with IP and usually seen as TCP/IP in writing.. Today’s activity introduces the newest incarnation of the Internet Simulator Messages now have “To” and “From” addresses in a format similar to IP addresses (just an 8-bit address instead of a full 32 bits) This allows messages to be sent to a single intended recipient.

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