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These are the text messages which are sent to a web browser by a web server. It may contain link to virus or harmful content. Spam is an email that you receive from unknown sender. It may appear like a game or similar application.
#SONY VAIO LAPTOP SD CARD READER NOT WORKING SOFTWARE#
Trozan Horse is a software that looks legitimate but actually can harm the computer system. In this way it may eat up entire disk space hence resulting in system crash. WORM is a type of software that can replicate itself creating multiple copies of itself. Don’t use infected pen drive, CD or DVD on computer.
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Don’t download any software from unknown source.
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It is used to transfer hypertext based documents from one computer to another computer. HTTP stands for Hypertext Transfer Protocol. It is a communication protocol used to transmit multiprotocol data between two directly connected (point-to-point) computers. PPP stands for Point – to – Point Protocol. It is also used to transfer files from a computer to web server. It is used to transfer files from one computer to another on a network. What is FTPįTP stands for File Transfer Protocol. IP is meant for establishing connection between two computers on a network. TCP ensures that data reaches its destination succesfully. TCP/IP is a collection of protocols that includes Transmission Control protocol and Internet protocol. It is difficult to locate and correct errors.It can be easily managed and maintained.It is actually extended version of bus topology. It has a root node and all other nodes are connected to it forming a inverted tree structure. If the hub fails then the whole network is stopped.If one computer fails, it will have no effect on other computers on the network.This hub is the central node and all others nodes are connected to the central node. In star toplogy all the computers are connected to a single hub. If one computer is dead, it will make entire network dead.It is difficult to find and correct errors on network.
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Different types of network topologies are:īus topology is a network type in which every computer and network device is connected to single cable. Network Topology is the structure to organize and interconnect computers on a network.