Wednesday, March 7, 2018

Information Technology and Cyber Law 6

കമ്പ്യൂട്ടർ നെറ്റവർക്ക്കളുമായി ബന്ധപ്പെട്ട ചോദ്യങ്ങളാണ് ഇന്നത്തെ പാഠത്തിൽ ഉൾപ്പെടുത്തിയിട്ടുള്ളത്
  • Data transmission rate of a communication channel is measured in
                    Bits per Second
  • Computer network that used inside an office building or in a class room
                    LAN (Local Area Network)
  • Most common technologies used to build LAN
                    Ethernet and WiFi
  • Computer network that spread over a city
                    MAN (Metropolitan Area Network)
  • Example of MAN
                    Network used in cable TV
  • Computer network that spans a large geographical area
                    WAN (Wide Area Network)
  • Computer network that interconnects countries
                    WAN
  • Biggest wide area network is
                    Internet
  • Computer network that connecting personal devices
                    PAN (Personal Area Network)
  • Internet protocol suit is commonly known as
                    TCP\IP
  • TCP\IP stands for
                    Transmission Control Protocol\Internet Protocol
  • TCP\IP came into being in the year
                    1982
  • No of Layers in TCP\IP Model
                    4
  • No of Layers in OSI Model
                    7
  • Routers operate in which layer of OSI model
                    Network Layer
  • Network which is known as international network
                    Internet
  • Network which is considered as ancient form of internet
                    ARPANET
  • ARPANET was developed buy
                    American department of defence
  • Internet in India was started by
                    VSNL (Videsh Sanchar Nigam Limited)
  • Commonly used internet access methods are
                    Dial up, ISDN, DSL, Cable Modem
  • Websites which helps to upload videos
                    YouTube, Facebook, Yahoo Video, My Video
  • Country having most number of internet users
                    China
  • India's position in no of internet users
                    Second
  • Methode of protecting data by copying it from the original source to a different destination
                    Backup
  • Technology used in intranet to share information, hardware and other resources is
                    Internet Protocol Technology
  • Network of computers within an organization which follows the same protocol as internet and provide same service as internet
                    Intranet
  • Closed online connection of two or more organizatios
                    Extranet
  • Device which acts as analog to digital and digital to analog signal converter
                    Modem
  • Device that helps to transmit signals through telephone lines
                    Modem
  • Modem stands for
                    Modulator demodulator
  • Device which connects more than one computer together in a network
                    HUB
  • Device that takes data comes from one channel and send to all other channel in the network
                    HUB
  • Device known as concentrator
                    HUB
  • ISP stands for
                    Internet Service Provider
  • Example for Internet service provider
                    VSNL, Asianet, Reliance
  • Medium that is used to transmit data at high speed over internet in the form of light
                    Optical Fibre Cable
  • Device that receives a signal and transmits it at a higher level or higher power
                    Repeater
  • Device which enables movement of data from one network to another network
                    Router
  • Device mounted on a communication satellite which receives, amplifies, retransmit signals from earth station
                    Transponder
  • Device using to routes between networks
                    Gateway
  • Device which used to connect two segments of a LAN or two LAN
                    Bridge
  • A short range wireless technology used to connect and exchange information between devices
                    Bluetooth
  • WiFi stands for
                    Wireless Fidelity
  • Example of wireless local area network
                    WiFi
  • WiMAX stands for
                    Worldwide Interoperability for Microwave Access
                                                                                                        (To be Continued...)

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