DNS  - Domain Name System - :53
HTTP - HyperText Transfer Protocol - :80 (HTTPS - :443)
SMTP - Simple Mail Transfer Protocol - :25
POP3 - Post Office Protocol - :110
IMAP - Intrernet Message Access Protocol - :143
MTA  - Mail Transfer Agent
MDA  - Mail Delivery Agent
FTP  - File Transfer Protocol - :20 (client), :21 (server)
TFTP - Trivial FTP - :69
DHCP - Dynamic Host Configuration Protocol - :68 (client), :67 (server)
TELNET - Teletype Protocol - :23
SSH  - Secure Shell - :22
TCP  - Transmission Control Protocol
UDP  - User Datagram Protocol
MAC  - Media Access Control
LLC  - Logical Link Control
TDM  - Time Divion Multiplex
FDM  - Frequence Division Multiplex
CDMA - Code Division Multiplex (TDCDMA,T-SCOMA,COMA-2000)
CIDR - Classless Inter Domain Routing
NAT  - Network Adress Translation
Default Rute    - 0.x.x.x
LoopBack Adrese - 127.x.x.x
Link Local      - 169.254.x.x (DHCP ne radi)
Test Net        - 192.0.2.x
Multicast       - 224-239.x.x.x
Eksperimentalne - 240-255.x.x.x
Privatne /8  A  - 10.x.x.x
Privatne /12 B  - 172.16-31.x.x
Privatne /16 C  - 192.168.x.x
DSL  - Digital Subscribe line
T568A - ZB Z NB P PB N SB S (B Verzija obrne N i Z)