This document provides an overview of several common network protocols: - TCP is responsible for transferring data between systems using different protocols and port numbers. It works with IP and other protocols like POP, IMAP, SMTP, HTTP, DNS, and DHCP. - IP assigns 32-bit logical addresses to identify systems on a network and routes data through public and private networks. - Protocols like HTTP, POP3, SMTP, IMAP, and DNS serve specific functions like transferring web pages, email, and converting between domain names and IP addresses. DHCP automatically assigns IP addresses to client systems on a network.

1. Protocol
Prepared by Prem Sahu

2. TCP- Transmission Control Protocol
Protocol: It is set of rule and regulation to transfer the data over network.
TCP: It is a group or stack of protocol which is responsible to transfer the data
from one system to another with different protocol and port number
IP
POP
IMAP
SMTP
HTTP
DNS
DHCP

3. IP(Internet Protocol)
It is 32 bit logical address assign to system to identify
in network. It is main channel to route through public
and private network.
IP v4 and IP v6 is there for communication
E.g. 192.168.1.7(IPv4)

4. HTTP
Hyper Text type protocol
It is used to view the web page contains in internet
though web browser.
HTTPS works For secure site where we have provide
user name and password
HTTP Port no. 80
HTTPs port no. 443

5. POP3
Post office protocol version 3
It is used to download mail from internet, It is used when we
configured MS-outlook to download mail from internet.
Every mail site having their unique Pop server to download mail.
Port no. for POP3 is 110

6. SMTP
It is used to sent mail in Internet
SMTP port no. 25
Every mail site mail server have their own SMTP
server.

7. IMAP
It is also used to download and modify mail from
Internet.
IMAP port no. 143

8. DHCP(Dynamic host configuration Protocol)
It provides IP address to client system automatically when system request for IP address
To get IP from DHCP server we have to enable obtain IP automatically in client system
It follow the DORA process between server and client
D-Discover(Client)
O-Offer(Server)
R-Request(Client)
A-Acknowledge(server)
To renew IP address of system type the following command in command prompt.
Ipconfig/release
Ipconfig/renew

9. DNS(Domain name system)
It convert domain name to IP address and vice versa
It keeps the records of domain name and their IP
address to resolve the query.
Every company has their own dedicated DNS server
for system management.

10. DNS(Domain name system)
It convert domain name to IP address and vice versa
It keeps the records of domain name and their IP
address to resolve the query.
Every company has their own dedicated DNS server
for system management.