Difference between Star Network and Ring Network

SN	Difference between Star Network and Ring Network: there are various topology for arrangement of network components like Star, Bus, Ring etc.
	Star Network	Ring Network
1	In this computers and components are connected in star form.	In this computer and components are connected in a Ring Form.
2	In this it is easy to add and remove Node (computers) in the network	It is little difficult to add and remove node (computers) from network.
3	If one node fail network will not come to halt.	If one node fails the entire network will come to halt.
4	It cost more.	It cost less.
5	It is more in use and more reliable even for big size network.	It not used only for small network.
6	It require a central device (Hub or Swatches) for connecting computers.	It does not require any special device for connecting computer.

Difference between Star Network and Bus Network

SN	Difference between Star Network and Bus Network: There are various topology for arrangement of network components like Star, Bus, Ring etc.
	Star Network	Bus Network
1	In this computers and components are connected in star form.	In this computer and components are connected in straight form on a cable
2	In this it is easy to add and remove Node (computers) in the network	It is little difficult to add and remove node (computers) from network.
3	If one node fail network will not come to halt.	If one node fails the entire network will come to halt.
4	It cost more.	It cost less and simple to understand
5	It is more in use and more reliable even for big size network.	It not used presently, not reliable and use for only small network.
6	It require a central device (Hub or Swatches) for connecting computers.	It does not require any special device for connecting computer.

Difference between Decision Support System and Expert System

SN	Difference between Decision Support System and Expert System: There are various types of information system which help organization for managing their business application by using computer. Like Transaction Processing System (TPS), Management Information System (MIS), Decision Support System (DSS) and Expert System (ES) etc.
	Decision Support System	Expert System
1	This is Business Information System normally used by Manager.	This is Business Information System normally used by Managers as well as end users.
2	This is used for solution of semi structured problems.	This is used for unstructured as well as semi structured problem.
3	These provide the solution on basis of operational database, knowledge of managers etc.	Expert System act as a Expert for any particular problem
4	DSS are easy to develop.	Expert Systems are difficult to develop.
5	DSS are extensively used in industry for decision making process.	Expert system relatively has low existence in industry.

Difference between Network Database Structure and Relational Database Structure

SN	Difference between Network Database Structure and Relational Database Structure: There are three (Hierarchical, Network and Relational) approaches for organizing records and their relationships logically in databases. These approaches are known as database structures.
	Network Database Structure	Relational Database Structure
1	This structure is not as flexible as Relational structure is.	This is most flexible structure for representing data relationships.
2	DBMS based on Network structure are no more in used.	Most of the DBMS in market are based on relational structure and known as RDBMS.
3	In this relationships between records are represented in a graph manner.	In this relationships between records are represented in table form.
4	Database based on this structure was not efficient in terms of data access, storage etc.	Database based on this structure are very efficient in terms of data access and storage etc.

Difference between Centralized Data Processing and Distributed Data Processing

SN	Difference between Centralized Data Processing and Distributed Data Processing: These two are data processing techniques mainly employed worldwide.
	Centralized Data Processing	Distributed Data Processing
1	In this one Computer is used for keeping all the processed data at central location mainly head office.	In this data is kept as locally (Brach Office) as well as at head office.
2	In this processing of data take place at one location only.	In this processing take place locally as well as at main place also.
3	Information is available at one place only therefore, every one communicate with central office for need of information (even for local information)	In this information is available locally therefore, braches communicate with central office for only that information which is not available locally.
4	Costly technique to establish for online Processing.	This is comparatively inexpensive for online processing.
5	Lower in use now a day.	Most popular technique these days examples are banking organization etc

Difference between Client Server and Peer to Peer to Technique of Networking

SN	Difference between Client Server and Peer to Peer to Technique of Networking: There are two ways we can connect computers with each others in network mode. One is Client Server Mode and Second is Peer to Peer to Mode.
	Client Server	Peer to Peer
1	In this one or more computers are made as controlling server.	In this no computer is made server
2	In this technique the server control and manage the networking therefore, these are better managed networks.	In this no one is controlling authority therefore; management of network is very poor.
3	This technique provides better administration and security features to the network users.	This is not a secure network technique and no quality administrative features are available
4	This technique is expansive to establish	This technique is inexpensive to establish
5	Client Server is main type of network techniques used worldwide for networks	This at used at small scale level where security and other networking features are not very important.

Difference between Intranet and Extranet

SN	Difference between Intranet and Extranet: Networks are used for sharing of information and resources and internet is a network of networks to share information and resources worldwide. Organization are increasingly using the internet technology to connect offices, customers etc for online processing of data etc. There are two important private network terminologies which are using internet for data communication one is intranet and other one is extranet.
	Intranet	Extranet
1	This is an inter organization network.	This is a network of organization plus the network of partner and associates.
2	This network uses internet technologies for data communication.	This network also uses internet technologies for data communication.
3	This network provides access to company server to only those persons belonging to same organization.	In this access to server (selected data) is allowed to even business partners also like to customers etc. Example banks networks
4	Access to company server is possible from anywhere in the world using internet.	In this also access to server is possible from anywhere in the world through internet.