Question 17 (1 point) Which of the following is less likely to be one of the benefits of protocol layering? 1) maintenance 2) standardization 3) modularization 4) redundancy Previous Page Next Page Page 17 of 30 Page 18 of 30 Question 18 (1 point) What is the underlying application layer protocol defined for Web browsing? 1) HTTP 2) TCP 3) IP 4) CSMA/CD Previous Page Next Page Page 18 of 30 Question 19 (1 point) Compared to other delay sources, depending on network congestion level. may be considerably variable over time 1) processing delay 2) queuing delay 3) transmission delay 4) propagation delay Page 20 of 30 Question 20 (1 point) Consider two hosts, A and B, connected by a single link of rate p bps. Suppose that the two hosts are separated by a meters, and suppose the signal propagation speed along the link is r meter/sec. Host A is to send a packet of size s bits to Host B. What is the transmission delay? O 1) alr O 2 2) pls 13)rla 4) s/p Previous Page Next Page Page 20 of 30