Term
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Definition
Layer7 - Application
Layer6 - Presentation
Layer5 - Session
Layer4 - Transport
Layer3 - Network
Layer2 - Data Link
Layer1 - Physical |
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Term
| The OSI Model Layer7 - Application |
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Definition
| The layer we see - Google Mail, Twitter, Facebook |
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Term
| The OSI Model Layer6 - Presentation |
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Definition
| Encoding and encryption (SSL/TLS) |
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Term
| The OSI Model Layer5 - Session |
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Definition
| Communication between devices (Control protocols, tunneling protocols) |
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Term
| The OSI Model Layer4 - Transport |
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Definition
| The "post office" layer (TCP segment, UDP datagram) |
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Term
| The OSI Model Layer3 - Network |
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Definition
| The routing layer (IP address, router, packet) |
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Term
| The OSI Model Layer2 - Data Link |
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Definition
| The switching layer (Frame, MAC Address, EUI-48, EUI-64, Switch |
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Term
| The OSI Model Layer1 - Physical |
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Definition
| Signaling, cabling, connectors (Cable, NIC, Hub) |
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Term
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Definition
Application
Transport
Internet
Link |
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Term
| The TCP/IP Model - Application |
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Definition
| FTP, BOOTP, TFTP, DNS, HTTP(S), TLS/SSL, VoIP, SSH, POP3, IMAP4, NTP, Telnet, SMTP, SNMP |
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Term
| The TCP/IP Model - Transport |
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Definition
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Term
| The TCP/IP Model - Internet |
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Definition
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Term
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Definition
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Term
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Definition
| 1-126, 8 network bits, 24 remaining bits, 128 networks, 16,777,214 hosts, 255.0.0.0 |
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Term
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Definition
| 128-191, 16 network bits, 16 remaining bits, 16384 networks, 65534 hosts, 255.255.0.0 |
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Term
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Definition
| 192-223, 24 network bits, 8 remaining bits, 2097152 networks, 254 hosts, 255.255.255.0 |
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Term
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Definition
| Communicates with single address on network |
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Term
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Definition
| Communicates with ALL addresses on network |
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Term
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Definition
| Communicates with multiple addresses on the network but NOT all |
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Term
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Definition
| Traditional Ethernet MAC Address (6 bytes) |
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Term
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Definition
| IPv6 Link-local auto config, FireWire (8 bytes) |
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Term
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Definition
Automatic Private IP Addressing
used when DHCP cannot be reached |
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Term
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Definition
Address Resolution Protocol
- Resolves IP address to MAC |
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Term
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Definition
Transmission Control Protocol
- Connection-oriented network communication |
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Term
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Definition
User Datagram Protocol
- Connectionless network communication |
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Term
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Definition
Bootstrap Protocol
- udp/67, udp/68
- Automate the IP address configuration
process |
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Term
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Definition
Dynamic Host Configuration Protocol
- udp/67, udp/68
- Update Bootp |
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Term
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Definition
Domain Name Services
- udp/53, tcp/53
- convert domain names to IP addresses |
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