Ethernet LANS and Switches

Question 1

advantages bridges have over hubs

Answer 1

1. bridges separate devices into collision domains
2. bridges reduced the number of collisions that occur in the network because frames inside one collision domain don’t collide with frames in another
3. bridges increased bandwidth by giving each collision domain its own separate bandwidth, with one sender at a time per collision domain

Question 2

ipv4 destination mac address of a broadcast frame

Answer 2

ffff.ffff.ffff

Question 3

prevents loops in switches

Answer 3

spanning tree protocol stp

Question 4

when a switch receives the entire frame before forwarding the first bit

Answer 4

store and forward processing

Question 5

when a switch starts sending the frame out the output port as soon as possible

Answer 5

cut through processing

Question 6

when a switch on only checks the first 64 bytes of a frame before forwarding a frame

Answer 6

fragment free processing

Question 7

definition of a LAN

Answer 7

includes all devices in the same broadcast domain

Question 8

individual broadcast domains created by a switch

Answer 8

virtual lan - vlan