function of internet

1)Domain Name Service DNS
Name Servers
DNS Protocol Overview
Resource Records RRs
Theory of Operation

2)File Sharing
NFS Protocol Overview

3)File Transfer
FTP Protocol Overview
TFTP Protocol Overview

4)Mail
a)Mail Format
MIME Protocol Overview
PGP Protocol Overview
b)Transport
SMTP Protocol Overview
POP Protocol Overview
IMAP Protocol Overview

5)Network Management
Management Information Base MIB
SNMP Protocol Overview

6)News
News Message Format
NNTP Protocol Overview

7)Publication
a)Anonymous FTP
b)Gopher
c)World Wide Web
-HTML Language Overview
-HTTP Protocol Overview
-Uniform Resource Locators
d)Streaming Media

8)Remote Login
RLOGIN Protocol Overview
TELNET Protocol Overview

9)Routing
Routing Tables
Distance-Vector Routing Protocols
Link State Routing Protocols
Interior Routing
Exterior Routing
BGP-4 Protocol Overview
OSPF-2 Protocol Overview
RIP Protocol Overview

10)Security
Trusted Ports
SSL/TLS Protocol Overview
SSH Protocol Overview
IPSEC Protocol Overview
Kerberos Protocol Overview

11)Session Management
RPC Protocol Overview
TCP Protocol Overview
UDP Protocol Overview

12)Transport
ICMP Protocol Overview
IGMP Protocol Overview
IP Protocol Overview

13)Windowing Systems
X Windows Protocol Overview