t=1: B -> D

t=2: D -> H

t=3: F -> D

t=4: A -> J

a) at t=1, what is the source entry fot switch 1? format your answer as letter, number or n/a

b) at t=1, what is the source entry fot switch 2 ? format your answer as letter, number or n/a

2) Learning Switches-Basics Consider the LAN below consisting of 10 computers connected by two self-learning Ethernet switches. At t=0 the switch table entries for both switches are empty. At t=1,2,3, and 4 , a source ends to a destination as shown below, and the destination replies immediately (well before the next time step)