7 Layers of the OSI model

Question 1

Layer 1

Answer 1

Physical:

• Coax, Fiber, Wireless,
• Hubs, Repeaters.

Question 2

Layer 2

Answer 2

Data Link:

• Ethernet,
• Switch,
• Bridge

Question 3

Layer 3

Answer 3

Network:

• Data Packets
• IP

Question 4

Layer 4

Answer 4

Transport:

• End to end connections
• TCP and UDP

Question 5

Layer 5

Answer 5

Session:

- Sync & send to port

Question 6

Layer 6

Answer 6

Presentation:

• Syntax layer
• IMAP, JPEG, FTP, SSH

Question 7

Layer 7

Answer 7

Application:

• End User layer
• HTTP, FTP, DNS, SSH