(CIS 175 -Intro 2 Ntwrking) Week 4 Quiz

(CIS 175 -Intro 2 Ntwrking) Week 4 Quiz - transmission of...

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Another excellent week. Thank you :) Week 4 Quiz 1. Define error and explain the types of errors from Chapter 10. An error occurs when any bit or bits of data is changed from a 1 to a 0, or vise-versa. A single bit error is when only 1 bit is changed, a burst error is when multiple bits are changes. 2. Describe the concept of redundancy and its importance in networking. Adding extra bits to a data message is called redundancy. These extra pieces are added at the sender and removed by the receiver. They are used to allow the receiver to find and fix damaged pieces of a message. This procedure is important in the hopeful end result of a correct transmission. 3. Describe Data link control. Data link control is the service provided by the data link layer and are the functions combined of flow and error control. Flow control prevents a fast sender from overwhelming a slow receiver. Error control allows the receiver to tell the sender about frames damaged or lost during transmission, and coordinates the re-
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Unformatted text preview: transmission of those frames by the Sender 4. What is the importance of Framing? Framing is important because it is an efficient data transmission technique used to send information quickly and correctly in a relay of frames to one or many destinations. An advantage of using frames is that data is broken up into recoverable chunks that can easily be checked for corruption. 5. Define piggybacking and its use in real-life networks. Try a google search to check out the concept. Piggybacking is the technique of temporarily delaying outgoing acknowledgment so that they can be hooked onto the next outgoing data frame. I would say that it could possibly improve the efficiency of a network. If station A wants to send both data and acknowledgment to station C, it could do this is one transmission....
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This note was uploaded on 01/19/2012 for the course COMPUTER S 100 taught by Professor Brown during the Spring '11 term at Strayer.

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