PRESTIGE INSTITUTE OF MANAGEMENT , GWALIOR

SUBMITTED TO:Prof- R K Pallival

SUBMITTED BY:

Network topologies ,

Servers, network interface

card,work station, hub switch,cable

etc. Shringee Rishi Tripathi(MBA )

COMPUTER NETWORK - A computer network is a group of

interconnected computers.

First Network : The Advanced Research Projects Agency (ARPA) funded the design of the "Advanced Research Projects Agency Network" (ARPANET) for the United States Department of Defense.

NETWORK TOPOLOGY Network topology is the pattern of

interconnection between computer in a network. Network topology shows the physical layout of a network and shows links between them.

There are following types of topologies prevalent across different networks.

TYPES OF NETWORK TOPOLOGY Bus Topology Star Topology Ring Topology Mesh topology Tree Topology

BUS TOPOLOGY

One wire connects all nodes. Terminator ends the wires.

Advantages:Easy to setupSmall amount of wireDisadvantages:SlowEasy to crash

STAR TOPOLOGY All computers connected to a hub Packets sent to hub Hub sends packet to destination

Advantages: Easy to setup One cable can not crash network

Disadvantages:One hub crashes all network.Uses lots of cable

RING TOPOLOGY Nodes connected in a circle

Tokens used to transmit data Nodes must wait for token to send

Advantages Time to send data is known No data collisions

Disadvantages Slow Lots of cable

MESH TOPOLOGY Each node relays data for the network.

All mesh nodes cooperate in the distribution of data in the network.

Advantages: Data will always be delivered Easy to trouble shootDisadvantages:

Lots of cable Hard to setup

TREE TOPOLOGY Combines characteristics of linear bus and star

topologies. It consists of groups of star-configured workstations connected to a linear bus backbone cable.

Advantages Easy to add new devices. Easy to remove any branch

Disadvantages: More cable. One branch fail may fail all network.

SERVER Any computer which satisfies its all

available facilities to all other computers of a network ( likes – access of files , communication , printing etc.) is termed as server.

WORKSTATION The most common component of a LAN

is the workstation. A workstation is an individual. Single user microcomputer with communications capabilities added.

CABLES A cable is two or more wires running

side by side and bonded, twisted, or braided together to form a single assembly

TYPES OF CABLES Twisted-pair cabling Coaxial cable Fiber-optic cable

WHAT IS HUB Hubs also called wiring concentrators , provide

a central attachment point for network I cabling.

In general, a hub refers to a hardware device that enables multiple devices or connections to be connected to a computer.

Hubs can be divided into three types :Passive hubsActive hubIntelligent hub

NETWORK INTERFACE CARDS (NICS)AnA network interface card (NIC) is a circuit board or card that is installed in a computer so that it can be connected to a network. ter(NIC) is a circuit bo A n A network interface card provides the computer with a dedicated, full-time connection to a network. etwor interface card provides the computer with a dedicated, full-time connection to a network A network interface card provides the computer with a dedicated, full-time connection to a network ard or is installed in a computer so that it can be connected to a net

SWITCHESA network switch (also called switching hub, bridging hub, officially MAC bridge) is a computer networking device that connects devices together on a computer network, by using packet switching to receive, process and forward data to the destination device.

  Q.1DATA COMMUNICATION SYSTEM SPANNING STATES, COUNTRIES, OR THE WHOLE WORLD IS ?

a) LANb) WANc) MANd) None of the mentioned

Ans – B

Q.2 CONTRIBUTION OF AGRICULTURE TO GROSS NATIONAL PRODUCT IS APPROXIMATELY ?

A) 14%B) 15%C) 16.5%D) 17.5%

Ans - D

Q.3WHICH OF THE FOLLOWING OPERATING SYSTEMS USE COMMAND LINE INTERFACE? - (A) Mac OS X (B) LINUX (C) Window 7 (D) MS DOS

Ans - D

Q.4 WHERE WAS THE FIRST ‘WORLD SUSTAINABLE DEVELOPMENT SUMMIT’ ORGANISED? -

A. New DelhiB. Ahmadabad (Gujarat)C. GambiaD. Zabivaka

Ans -A

Q.5WHICH ONE OF THE FOLLOWING COUNTRIES IS THE LARGEST EXPORTER OF TEA IN THE WORLD ? (A) India (B) China (C) Kenya (D) Sri Lanka

Ans –C