OSI - TCP/IP Layers Flashcards
OSI Layer 1
Physical
OSI Layer 2
Data Link
OSI Layer 3
Network
OSI Layer 4
Transport
OSI Layer 5
Session
OSI Layer 6
Presentation
OSI Layer 7
Application
What devices operate at Layer 1
Physical Layer
Hubs, Cables, Modems, Repeaters, Network Interface Card (NIC)
What devices operate at Layer 2
Data Link Layer
Bridges, Switches, Access Point (AP)
What devices operate at Layer 3
Network Layer
Routers, Layer-3 Switch, Brouters
What devices operate at Layer 4
Transport Layer
Firewalls
What devices operate at Layer 5
Session Layer
Gateways
What devices operate at Layer 6
Presentation
IOTs
What are the 2 sub layers of the Data Link Layer
Media Access Control (MAC) and Logical Link Control (LLC)
2 most common Protocols used at the Transport Layer
Transmission Control Protocol (TCP) and the User Datagram Protocol (UDP)