X2pctc - Cmpen/EE 362 Practice Exam 2 Spring 2009 One 8 x 11 sheet of notes and calculator allowed Exam 2 will be Friday April 3 4:40-5:30 in 113

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Cmpen/EE 362 Practice Exam 2 Spring 2009 One 8 ½ x 11 sheet of notes and calculator allowed. Exam 2 will be Friday April 3, 4:40-5:30 in 113 IST building. Problem 1 . [16 crs. 4 each] Answer the following questions about the HDLC protocol. a). What kind of frame contains both a receive sequence number and a send sequence number? b). What is an an extended control field? c). What kind of frame carries a command to use an extended control field? d). What three other commands are contained in a frame that carries a RNR (receive not ready) command, and what kind of a frame is it? Problem 2. [ 6 crs. 4/4] Name two different reasons for specifying a transmitter window. Problem 3. [15 crs. 5 each]. The following questions relate to Ethernet multiaccess. a) What is the key parameter that controls the limiting efficiency of Ethernet with CSMA/CD? b) Why does Ethernet prescribe a minimum size frame? c) How does going to higher rate Ethernets affect the key parameter mentioned in b)?
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This note was uploaded on 09/23/2009 for the course CMPEN 362 taught by Professor Johnmetzner during the Spring '09 term at Pennsylvania State University, University Park.

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X2pctc - Cmpen/EE 362 Practice Exam 2 Spring 2009 One 8 x 11 sheet of notes and calculator allowed Exam 2 will be Friday April 3 4:40-5:30 in 113

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