Protocol

WHAT IT IS ????

INFORMATION AND

COMMUNICATION TECHNOLOGY (ICT)

FORM 4

Topic3.0 Computer Network And Communication

Sub Topic3.1 Basic Concepts Of Computer Networks

And Communications

By the end of this lesson, students should be able to :

1. Define Network Standards2. Describe about Protocols - Hypertext Transfer Protocol (HTTP) - Simple Mail Transfer Protocol (SMTP) - File Transfer Protocol (FTP) - Transmission Control Protocol (TCP) - Internet Protocol (IP)

LESSON OBJECTIVES

NETWORK STANDARDS & PROTOCOLS

NETWORK STANDARDS

COMMON NETWORK STANDARDS

Network communications use a variety of standards to ensure that

data travels correctly to its destination.

Network standards define guidelines that specify the way

computers access the medium to which they are attached.

Guidelines describe The type of medium

The speeds used on different types of

networks.

The type of physical cable / wireless

technology used.

COMMON NETWORK STANDARDS

The well-known standards adopted by the

Institute of Electrical and Electronic

Engineers (IEEE) are the 802 standards.

Requirements for physical cabling

and specify the way data is

transmitted.

The ones we will get to know here are :

a. 802.3 (Ethernet LAN)

b. 802.7 (Broadband LAN)

c. 802.8 (Fiber-Optic LAN And MAN)

d. 802.11 (WIRELESS LAN)

80288

Ethernet refers to the physical cabling,

while the way data is transmitted through

the cable is called Carrier Sense Multiple

Access / Collision Detection (CSMA/ CD).

ETHERNET LAN (802.3)

80288

Provides specifications for the design

installation

testing needed for broadband

transmissions.

Broadband transmissions allow simultaneous multiple

transmissions or signals using different communications channels

at the same time.

BROADBAND LAN (802.7)

80288

Gives the recommendations for the configuration and testing of

fiber-optic Local Area Networks (LAN) and Metropolitan Area

Networks (MAN).

FIBER-OPTIC LAN AND MAN (802.8)

80288

Communication between a wireless computer or client

and an access point or between two wireless computers or

clients.

WIRELESS LAN (802.11)

80288BRAIN TEST !!!!

1. What is Networks Standards ?

2. There are four (4) types of Networks Standards.

Network Standards is guidelines that specify the way

computers access the medium to which they are attached.

Ethernet LAN (802.3)

Broadband LAN (802.7)

Fiber-Optic LAN & MAN (802.8)

WIreless LAN (802.11)

PROTOCOLS

80288

Protocols provide the rules on how computers communicate.

How devices intercommunicate in a network environment.

PROTOCOLS

80288

Define how devices, applications or computers communicate in a

network.

When two computers on a network perform a single exchange of

data or information, they will be busy looking for the best

communication process between them.

Ensuring that the information bits or data packets are sent or

received in a proper sequence.

THE IMPORTANT OF PROTOCOLS

80288TYPES OF PROTOCOLS

Hypertext Transfer Protocol (HTTP)

Simple Mail Transfer Protocol (SMTP)

File Transfer Protocol (FTP)

Transmission Control Protocol (TCP)

Internet Protocol (IP)

80288HYPERTEXT TRANSFER PROTOCOL (HTTP)

To access, send and receive Hypertext Markup Language

files (HTML) files on the Internet.

80288SIMPLE MAIL TRANSFER PROTOCOL (SMTP)

Transferring e-mail between computers

80288FILE TRANSFER PROTOCOL (FTP)

Allowing files to be copied between devices.

80288TRANSMISSION CONTROL PROTOCOL (TCP)

Ensures the delivery of information packets across network.

80288INTERNET PROTOCOL (IP)

Providing logical addressing called IP address to route

information between networks.

GROUP ACTIVITY

80288

Hypertext Transfer Protocol (HTTP) is used to access, send and receive Hypertext Markup Language files (HTML) files on the Internet.

QUESTION TRUE OR FALSE !

Internet Protocol (IP) is used for transferring e-mail between computers.

Transmission Control Protocol (TCP) is responsible for providing logical addressing called IP address to route information between networks.

File Transfer Protocol (FTP) is responsible for allowing files to be copied between devices.

Simple Mail Transfer Protocol (SMTP) is ensures the delivery of information packets across network.

Protocol is guidelines that specify the way computers access the medium to which they are attached.

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SUMMARY

SUMMARY