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Computer Networking: A Top-Down Approach (7th Edition)

7th Edition

ISBN:9780133594140

Author:James Kurose, Keith Ross

Publisher:James Kurose, Keith Ross

Chapter1: Computer Networks And The Internet

Section: Chapter Questions

Problem R1RQ: What is the difference between a host and an end system? List several different types of end...

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Question

1. One way of detecting errors is to transmit data as a block of n rows of k bits per row and add parity bits to each row and each column (for this problem k is >=5). The bit in the lower-right corner is a parity bit that checks its row and its column. This scheme will detect burst errors of length 5?

(A) TRUE (B) FALSE

2. According to Shannon, if the amount of Signal is increased on a transmission medium, everything else constant, the expected theoretical bitrate would

(A) increase (B) decrease (C) remain the same (D) cannot determine

3. In nonpersistent CSMA, if a transmitter ready to transmit senses the channel is busy, the transmitter waits a random amount of time, and senses the line again. If it’s still busy it repeats the process, otherwise it transmits the data. (A) True (B) False

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