ECE3076 HW-6 answers - Name (print) _ Sec. _ ECE3076, Fall...

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Name (print) ______________________________ Sec. ________ ECE3076, Fall 2009 Email ____________________ HW-6 Due Friday, Nov. 20 (beginning of class) Email to your TA. These topics may be on the Exam. 1 . When you type "www.cnn.com" into your browser, what are the two hosts whose Ethernet addresses must be obtained if nothing is cached from previous operations? a. ______ gateway router __________ b. _____ ________local DNS server _____________ b. On an IP network, what protocol is used to obtain these MAC addresses? _____ ARP ________ 2 . Ethernet is called CSMA/CD, while WiFi is called CSMA/CA. MA stands for Multiple Access. a. What does CA mean ? ____ collision avoidance __________________________ b. What does it prevent? _____ lost frames due to a collision ________________________________ c. What does CD mean ? _____ collision detection ______________________ d. What does it prevent? _____ lost time due continued sending after the collision starts __________ 3. Hosts A , B, C, and D are connected directly to an
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This note was uploaded on 10/29/2010 for the course ECE 3076 taught by Professor Copeland during the Spring '08 term at Georgia Institute of Technology.

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