Chapter 3.2

1. CHAPTER 3: COMPUTER
NETWORKS AND
COMMUNICATIONS

2. Protocol
 A protocol is a set of rules for the exchange of
data between a terminal and computer or
between two computers. Think of protocol as a
sort of precommunication agreement about the
form in which a message or data is to be sent
and receipt is to be acknowledge.

3. Types of Protocols
 Hypertext Transfer Protocol (HTTP) – This protocol
is used to access, send and receive Hypertext
Markup Language (HTML) files on the Internet.

4.  Simple Mail Transfer Protocol (SMTP) – This
protocol is used for transferring email between
computers

5.  File Transfer Protocol (FTP) – FTP is responsible for
allowing file to be copied between devices.

6.  Transmission Control Protocol (TCP) – This
protocol ensures the delivery of information packets
across network.

7.  Internet Protocol (IP) – This important protocol is
responsible for providing logical addressing called
IP address to route information between networks.