Categories
Assistant IT & Cyber Laws

Cyber Laws – 09

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 classroom

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 suite 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 an ancient form of internet

ARPANET

 

  • ARPANET was developed by

American department of defense

 

  • 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 the 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 the 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 the same service as internet

Intranet

 

  • Closed online connection of two or more organizations

Extranet

 

  • Device which acts as an 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 channels 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 the 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 the 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…)