week 2 again

Question 1

Application

Answer 1

Provides network service to user and high level application protocols (http for web browsing, ftp for file transfer, smtp for email)

Question 2

Transport

Answer 2

Provides communication between client and server program, error correction and congestion control

Question 2

Network

Answer 2

Handles IP addressing and routing data packets across network

Question 2

Data link

Answer 2

Handles MAC addressing of source and destination within network, moves frames from node to node

Question 2

Physical

Answer 2

Carries bits in frame through physical media

Question 2

Adressing of Transport

Answer 2

Ports

Question 2

Addressing and Hardware of Network

Answer 2

IP, Routers

Question 2

Addressing and Hardware of Data link

Answer 2

MAC, Bridges, Switches

Question 3

Hardware of Physical

Answer 3

Hubs and Repeaters

Question 4

Protocols of Application

Answer 4

HTTP, FTP, SMTP

Question 5

Protocols of Transport

Answer 5

TCP, UDP

Question 6

Protocols of Network

Answer 6

IP, ARP

Question 7

Why did OSI model not catch on

Answer 7

TCP/IP was already established, layers werent fully developed and did not outperform