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| Term | Definition |
|---|---|
| FTP - file transfer protocol | TCP 20/ TCP 21 |
| SSH - secure shell | TCP 22 |
| Telnet - telecommunication network | TCP 23 |
| SMTP - simple mail transfer protocol | TCP 25 |
| DNS - Domain Name System | UPD 53/TCP53 |
| DHCP - Dynamic host configuration protocol | UDP 67/68 |
| HTTP - Hypertext transfer protocol | TCP 80 |
| HTTPs - Hypertext transfer protocol secure | TCP 443 |
| POP3 - Post office protocol version 3 | TCP 110 |
| IMAP4 - internet message access protocol V4 | TCP 143 |
| NET BIOS name service | UPD 137 |
| NET BIOS session service | TCP 139 |
| SMB - Secure Message Block | TCP 445 |
| LDAP - Lightweight Directory Access Protocol | TCP 389 |
| RDP - Remote Desktop Protocol | TCP 3389 |
| Class B IP | 172.16.0.6 |
| Loopback IP | 127.0.0.1 |
| Class A IP | 10.0.0.1 |
| APIPA | 169.254 |
| Class C IP | 192.168.04 |
| 802.11 ac (WiFi5) | 5 GHZ 6.5 gbs 140 m |
| 802.11 n | 5 GHz/2.4 GHz 6 mps 250 m |
| 802.11 ax (WiFi 6) | 5GHZ/2.4GHz 9.6 Gbs 140 m |
| 802.11 g | 2.4 GHz 54 mpbs 140 m |
| 802.11 b | 2.4 GHz 11 mbps 140 m |
| 802.11 a | 5 GHz 54 mpbs 120 m |
| LAN | local area network office building |
| WAN | wide area network large geographical area |
| PAN | personal area network bluetooth |
| MAN | Metropolitan area network city/campus |
| SAN | storage area network storage device |
| WLAN | wireless local area network |
| battery makeup | nickel cadium lithium ion nickle metal hydride lithium polymer |