Question : The device in a communication satellite which receives signals from an earth station and transmits them in different directions is______.
Option 1: transformer
Option 2: transistor
Option 3: transponder
Option 4: transducer
Correct Answer: transponder
Solution : The correct option is a transponder.
The transponder is the name for the component located on communication satellites that receive, amplify, and retransmit signals from earth stations. Transponders refer to the channels of a communications satellite since each one has its transceiver or repeater. Multiple video and audio channels may pass via a single transponder on a single wideband carrier thanks to digital video data compression and multiplexing.
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Question : Communication satellites are used to?
Option 1: Transmit communication signals
Option 2: Receive and redirect communication signals
Option 3: Only receive a communication signal
Option 4: Provides information from national sources only
Question : Which of the following was not an aim of the satellite INSAT-1B?
Option 1: Protecting the national borders
Option 2: TV communication
Option 3: Weather forecasting
Option 4: Disaster warning
Question : Which of the following is used as the primary memory of a computer?
Option 1: Optical storage device
Option 2: Magnetic storage device
Option 3: RAM
Option 4: Magnetic-Optical storage device
Question : What is clickjacking?
Option 1: Malicious technique of tricking Web users into revealing confidential information.
Option 2: A device that sends and receives data in a bit second.
Option 3: A form of Computer Engineering.
Option 4: A digital process that is used to display an image on the monitor.
Question : Earth Summit (Save Earth) was sponsored by:
Option 1: UNESCO
Option 2: UNCED
Option 3: WHO
Option 4: UNICEF
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