Question

A 3000 km long trunk operates at 1.536 mbps and it is used to transmit 64 bytes frames. if it uses sliding window protocol then what is the number required sequence numbers. assume propagation speed of 8 microsec/ km?

a. 63

b. 110

c. 123

d. 145 solution: option d 7. what is the number of sequence bits used in above question (number of bits used for sequence number) ? solution: 8 8. a system with redundant bridges might have a problem with__________ in the system.

a. loops

b. flooding

c. filters

d. all of the above solution: option

Answer 1

b.110
7. 8
8 b. flooding