HTTP stands for HyperText Transfer Protocol. It is an application protocol.Using hyperlinks embedded in hypertext the web developers are able to connect web pages. HTTP is a base of data communication for WWW (World Wide Web). HTTP was invented by Tim Berners-Lee at CERN in 1989.HTTP acts as a request-response protocol in the client-server computing model. For instance, let us consider a browser as a client and an application running on a computer hosting a website as a server.The client first initiates a HTTP request message to the server.The server then collects requested resources such as HTML files or any ... Read More

The full form of HSDPA is High-Speed Downlink Packet Access. It is a new protocol used in mobile telephone data transmission. It is called a 3.5G technology.Basically, this standard will provide download speeds on a mobile phone equivalent to an ADSL line in a home, by removing any limitations placed on the use of your phone by a slow connection.More importantly, it is an evolution and improvement on W-CDMA, (Wideband Code Division Multiple Access) a 3G based protocol. It helps in improving the data transfer rate by a factor of at least five over W-CDMA. It can also achieve theoretical data ... Read More

The full form of ARPANET is Advanced Research Projects Agency NET was developed under the direction of the US Advanced Research Projects Agency and was based on a concept first published in 1967. With the interconnection of four university computers in 1969, the concept became a modest reality.It was the first network to implement the TCP/IP protocol. It was a very early packet switch network. This network became the foundation for the modern day internet.The protocols used in Arpanet were later developed for joining multiple networks, which gave rise to the modern day internet. It helps in grouping the data ... Read More

The full form of VANET is Vehicular Adhoc Network. It is the subclass of network of MANET type whereas the full form of MANET is Mobile Adhoc Network. In this, all nodes can be interfaced dynamically in arbitrary fashion.MANET featuresThe features are as follows −It supports Dynamic topologiesIt supports Energy constraint operationIt has Variable capacity links.Here is an example picture of MANET −VANET featuresThe features are as follows −Cellular and WLAN networkHybridPure Ad hocHere is the example picture of VANET −DifferencesThe differences between the MANETs with VANETs are as follows −ParametersMANETSVANETSDynamic TopologiesThe topologies change is slow.The topology change is very ... Read More

The full form of ISCII is Indian Script Code for Information Interchange. It was established as Bureau of Indian Standards in 1991 and it is based on an earlier Indian Standard IS 10401:1982. It is a type of coding scheme for Indian languages.It is an 8-bit standard where lower 128 characters (0-127) conform to ASCII standard and higher 128 characters (128-255) are used to encode characters from an Indian script.ISCII encoding strategy is used in Unicode in their encoding. Generally the characters of the Indian language derive from the ancient Brahmi script. Mostly all the characters resemble closely to each ... Read More

Metro Ethernet is a type of network that provides point to point or multi-point connections over a MAN (metropolitan area network). The maximum throughput for this network is 10gbps.The disadvantages consist of latency, small upload speeds and high packet loss.Metro Ethernet Forum (MEF) is an organization which is a non-profit that seeks to accelerate the use of carrier class Ethernet networks and services worldwide. This organization is made up of leading service providers, local exchange carriers, test equipment vendors, network equipment vendors and other networking companies which share an interest in the organization's goal.Metro Ethernet Forum basically provides two types ... Read More

Let's try to understand what reliability challenges for computer networks are.This can be defined as packet loss, bandwidth saturation, and latency, but this type of information would be really unhelpful to those IT companies whose networks are small, and failures not well under- stood & might be limited to rebooting.Five reliability challengesThe reliability challenges for a computer network are as follows −Host IdentificationThe Host ID is the portion of an IP address that uniquely identifies a host on a given TCP/IP network.The smaller networks can be easily configured with the help of manual addressing, but it becomes a serious problem ... Read More

Let us understand the concepts of Wi-Fi and Zigbee.Wi-FiIt is a wireless networking protocol that allows devices to communicate without internet cords. It's technically an industry term that represents a type of wireless local area network (LAN) protocol based on the 802.11IEEE network standard.Wi-Fi is the most popular means of communicating data wireless, within a fixed location.We can find Wi-Fi in the following:Schools, Homes and CollegesCorporate places and Private/Public FirmsRailway/Metro stationsSupermarkets where customers can pay onlineNear restaurants, coffee shops, dine placesThe ZigBee protocolIt is used in the IEEE 802.15 standards and adds the network security as well as framework protocol. ... Read More

Let us see the detailed analysis and assessment of OSI and TCP/IP protocols.TCP/IPIt is a suite of communication protocols which is used to interconnect network devices on the internet. The Transmission Control Protocol/Internet Protocol (TCP/IP) is also used as a communication protocol in a private network.The entire internet protocol suite is a set of rules and procedures by providing end-to-end communications which identify how it should be broken into packets addressed, transmitted, routed and received at the destination.It is defined to make networks reliable, with the ability to recover automatically from the failure of any device on the network.History of ... Read More

Skype is a Microsoft product which offers free video and audio calling which is also having the ability to call landlines and smartphones with paid services anywhere in the world. It has a first mover advantage. It came into existence before the Facebook messenger.Facebook Messenger allows users to play in-app games, make video and audio calls along with sending or receiving payments. It is tied up with the social media platform. It is not a paid service. It is free of cost.DifferencesThe major differences between Skype and Facebook Messenger −SkypeFacebook MessengerSkype doesn’t have stories and it makes a professional feel. ... Read More