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Different types of protocols used for different operations on the Internet are as follows:
HTTP - Hyper Text Transfer Protocol: It is a set of rules that defines how the Web pages transfer
information like document, file, image, video between computers over Internet.

HTTPS - Hyper Text Transfer Protocol Secure: It is secure version of HTTP. The information is
converted into code to prevent unauthorised access. Nowadays, most of the websites uses the
HTTPS protocol instead of HTTP.
FTP - File Transfer Protocol: It is a set of rules that allows file uploading and downloading from the
other computers over the Internet.
TCP/IP - Transmission Control Protocol/Internet Protocol: It is a network protocol that defines
how the information or messages are routed from one end of a network to the other.

POP3 - Post Office Protocol Version 3: It is an Internet standard protocol that allows e-mail clients
to retrieve e-mail messages from an e-mail server.
IMAP - Internet Message Access Protocol: It is an e-mail protocol that stores e-mail messages on
a mail server and allows the user to view, access and manipulate the messages on the mail server
from their computer.
SMTP - Simple Mail Transfer Protocol: It is an e-mail protocol for sending e-mail messages across
the Internet.

Let’s CatCh uP

Write the full forms of the following:
1. HTTPS- ________________________________________________________

2. IMAP- ________________________________________________________
3. FTP- ________________________________________________________

4. TCP/IP- ________________________________________________________

Let’s BaCk-uP

The computer network means the system of interconnected computers.
The components needed for a network are Network Interface Card, hub or a switch, router,
modem, networking cable and gateway.
The different types of networks are PAN, CAN, LAN, MAN and WAN.
Various types of topologies used in a network are bus, star, tree, ring and mesh.
There are two types of computer network architectures—peer-to-peer network and client-
server network.
In a wireless networking technology, no wires or physical media is used for connecting
computers.
Protocol is a set of rules that governs the communication between the computers over a
network.

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