Computer Network Lab Practical 1 Study about different types of networks by : jigar M. Pandya

Computer Network

Lab Practical 1

Study about different types of networks

by : jigar M. Pandya

Networking

• Computer network A collection of computing devices that are connected in various ways in order to communicate and share resources

Usually, the connections between computers in a network are made using physical wires or cables

However, some connections are wireless, using radio waves or infrared signals


Networking

• The generic term node or host refers to any device on a network

• Data transfer rate The speed with which data is moved from one place on a network to another


Client Server

• Computer networks have opened up an entire frontier in the world of computing called the client/server model


Servers

• File server A computer that stores and manages files for multiple users on a network

• Web server A computer dedicated to responding to requests (from the browser client) for web pages


Types of Networks

• Local-area network (LAN) A network that connects a relatively small number of machines in a relatively close geographical area


LAN

• Various configurations, called topologies, have been used to administer LANs

• Ring topology A configuration that connects all nodes in a closed loop on which messages travel in one direction

• Star topology A configuration that centers around one node to which all others are connected and through which all messages are sent

• Bus topology All nodes are connected to a single communication line that carries messages in both directions


Types of Topology

15-10


Types of Networks

• Metropolitan-area network (MAN) The communication infrastructures that have been developed in and around large cities


Types of Networks

• Wide-area network (WAN) A network that connects two or more local-area networks over a potentially large geographic distance

Communication between networks is called internetworkingThe Internet, as we know it today, is essentially the ultimate wide-area network, spanning the entire globe


Comparison Of LAN,MAN,WAN


So, who owns the Internet?

Well, nobody does. No single person or company owns the Internet or even controls it entirely. As a wide-area network, it is made up of many smaller networks. These smaller networks are often owned and managed by a person or organization. The Internet, then, is really defined by how connections can be made between these networks.


WLAN• Wireless Local Area Network


WLAN benefits• Flexibility

• increases working efficiency and productivity

• extends the On-line period

• Installation on difficult-to-wire areas• inside buildings

• road crossings

• Increased reliability• Note: Pay attention to security!

• Reduced installation time• cabling time and convenient to users and

difficult-to-wire casesby : jigar M. Pandya

WLAN implementation problems

• Lack of wireless networking experience for most IT engineer

• Weak security policy

• As a result, your WLAN may have• Poor performance (coverage, throughput,

capacity, security)

• Unstable service

• Customer dissatisfaction


Campus Area Network(corporate area network

(CAN).)• Campus Area Networks are usually a

connection of many small LAN networks which are often used on university campuses and office buildings. Campus Area Networks allow for easy file sharing between different departments as all the files are usually shared on the server machines of each LAN network. This type of network offers a lot of simplicity in the transfer and downloading of files.


CAN


CAN

• CAN benefits are as follows:

• Cost-effective

• Multidepartment network access

• Single shared data


Storage Area Network

• Storage Area Networks are primarily used as information databases. They are not usually used by large organizations or similar entities. They are specifically used for the storage of information, and easy retrieval of specific pieces of data whenever required. Storage Area Networks are usually used by websites which offer downloading services.



Cloud

• Cloud networking is a new networking paradigm for building and managing secure private networks over the public Internet by utilizing global cloud computing infrastructure


Cloud Applications


Questions

1. Explain LAN, MAN, WAN with figure.

2. What are the different topologies explain with figure.

3. Write-down steps to implement wireless LAN.


Documents

Computer Network Lab Practical 1 Study about different types of networks by : jigar M. Pandya