Computer Networks

Question 1

What is topology?

Answer 1

the geometric shape that connects computers

Question 2

What are three classic network topologies? (Optional: Their strengths/weaknesses?)

Answer 2

Star Network (devices can be added/removed but not central node), Ring Network (all go down if one doesn’t work), Bus Network (devices can be added/removed but can’t share signals at the same time)

Question 3

What are physical mediums?

Answer 3

how devices are connected ex: copper cables, fiber optic cables, wireless

Question 4

What are Internetworks?

Answer 4

composed of many different networks, AKA the topology and medium of the internet

Question 5

What is badnwidth?

Answer 5

the speed of the network

Question 6

What is lag and latency?

Answer 6

Lag is the delay in data transmission while latency is a measure of how much time a piece of information takes to get from source to destination regardless of bandwidth.

Question 7

What are different naming schemes?

Answer 7

• Psychical/MAC Address: uniquely identify computer
• IP Addresses: registered from network and based on geographical location
• Hostnames: readable and rememberable name on the internet (www.stanford.edu)