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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
by : jigar M. Pandya
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
by : jigar M. Pandya
Client Server
• Computer networks have opened up an entire frontier in the world of computing called the client/server model
by : jigar M. Pandya
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
by : jigar M. Pandya
Types of Networks
• Local-area network (LAN) A network that connects a relatively small number of machines in a relatively close geographical area
by : jigar M. Pandya
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
by : jigar M. Pandya
Types of Topology
15-10
by : jigar M. Pandya
Types of Networks
• Metropolitan-area network (MAN) The communication infrastructures that have been developed in and around large cities
by : jigar M. Pandya
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
by : jigar M. Pandya
Comparison Of LAN,MAN,WAN
by : jigar M. Pandya
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.
by : jigar M. Pandya
WLAN• Wireless Local Area Network
by : jigar M. Pandya
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
by : jigar M. Pandya
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.
by : jigar M. Pandya
CAN
by : jigar M. Pandya
CAN
• CAN benefits are as follows:
• Cost-effective
• Multidepartment network access
• Single shared data
by : jigar M. Pandya
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.
by : jigar M. Pandya
by : jigar M. Pandya
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
by : jigar M. Pandya
Cloud Applications
by : jigar M. Pandya
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.
by : jigar M. Pandya
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