OSI Model Flashcards
1
Q
Layer 1
A
Physical Layer
2
Q
Physical Layer
A
Allow connectivity. Cables, connectors, hubs, etc.
3
Q
Layer 2
A
Data Link Layer
4
Q
Data Link Layer
A
MAC Addresses, switches, bridges, NICs, ARP and RARP. Sublayers: Logical Link Control (LLC) and Media Access Control (MAC)
5
Q
IEEE Standard 802.3
A
Ethernet
6
Q
IEEE Standard 802.5
A
Token Ring
7
Q
IEEE Standard 802.11
A
Wireless
8
Q
Layer 3
A
Network Layer
9
Q
Network Layer
A
Logical addressing; all āIā protocols except IMAP, and Routers
10
Q
Layer 4
A
Transfer Layer
11
Q
Transport Layer
A
TCP, UDP, Ports. Netstat and Nmap can be used to view ports
12
Q
Layer 5
A
Session Layer
13
Q
Session Layer
A
Setup, Maintenance, and Tear Down of a Connection
14
Q
Layer 6
A
Presentation Layer
15
Q
Presentation Layer
A
Formatting, Compression, Encryption. Has no protocols
