week 4

Question 1

What do repeaters do

Answer 1

Regenerates and retimes signal before it becomes too weak or corrupted

Question 2

Match:
1. Repeaters
2. Hubs.
–
A. Multiple ports
B. Single in single out port

Answer 2

1. B
2. A

Question 3

What is broadcasting

Answer 3

Sends message to every host but only intended recipient receives it

Question 4

What is the collision domain

Answer 4

Segment of network where collisions between nodes are possible

Question 5

What data flow are hubs

Answer 5

Half duplex

Question 6

True or False: With broadcasting, networks can be segmented

Answer 6

False

Question 7

True or False: Hubs can not connect to other topologies

Answer 7

True

Question 8

What layer is repeaters

Answer 8

Physical

Question 9

What layer is bridges

Answer 9

Data link

Question 10

What are the 2 functions of bridge

Answer 10

Uses Layer 2 processing (MAC address) to decide to forward informaiton
Segments networks

Question 11

What is the function of a transparent bridge and what is its disadvantage

Answer 11

Determines segment origin of frames MAC address to know where to send frames in the future, takes time

Question 12

True or False: bridges are more expensive than hubs/repeaters

Answer 12

True