What is the main function of a communication satellite?
a) To provide weather updates
b) To relay signals for communication
c) To monitor space activities
d) To take images of celestial bodies
Which of the following is a key component of mobile communication?
a) Fiber-optic cables
b) Base transceiver stations (BTS)
c) Analog telephone lines
d) Morse code
Which frequency band is commonly used for mobile communication?
a) VLF (Very Low Frequency)
b) UHF (Ultra High Frequency)
c) SHF (Super High Frequency)
d) ELF (Extremely Low Frequency)
What is the primary purpose of GPS satellites?
a) Weather forecasting
b) Navigation and location tracking
c) Space exploration
d) Broadcasting television signals
Which mobile network generation introduced 4G LTE technology?
a) 2G
b) 3G
c) 4G
d) 5G
What does SIM stand for in mobile communication?
a) Satellite Identification Module
b) Subscriber Identity Module
c) Signal Integration Mechanism
d) System Information Mode
Which of the following is a low Earth orbit (LEO) satellite?
a) Hubble Space Telescope
b) International Space Station (ISS)
c) GPS satellites
d) All of the above
Which type of satellite is used for live TV broadcasting?
a) Weather satellite
b) Navigation satellite
c) Communication satellite
d) Scientific satellite
What is the full form of GSM?
a) Global System for Messaging
b) General Satellite Module
c) Global System for Mobile Communications
d) Geostationary Signal Mechanism
Which satellite system is used for weather forecasting?
a) GPS
b) GOES (Geostationary Operational Environmental Satellite)
c) INSAT
d) Both b and c
What is the key advantage of geostationary satellites?
a) They move faster than the Earth’s rotation
b) They remain fixed over one location
c) They orbit at low altitudes
d) They require less power
Which mobile network technology is primarily used for voice calls in 2G networks?
a) CDMA
b) GSM
c) LTE
d) Wi-Fi
What is the approximate altitude of geostationary satellites?
a) 500 km
b) 2,000 km
c) 35,786 km
d) 100,000 km
Which technology enables internet access through mobile networks?
a) Ethernet
b) Wi-Fi
c) LTE
d) Fiber optics
What is the main difference between GEO and LEO satellites?
a) GEO satellites move faster than LEO satellites
b) LEO satellites are closer to Earth
c) GEO satellites are used for GPS
d) LEO satellites are used for TV broadcasting
Which organization manages GPS satellites?
a) NASA
b) ISRO
c) U.S. Department of Defense
d) ESA
Which mobile network generation introduced high-speed internet with video calling?
a) 1G
b) 2G
c) 3G
d) 5G
What is the main disadvantage of geostationary satellites?
a) High power consumption
b) High latency
c) Limited data capacity
d) Short lifespan
Which of the following is an example of a navigation satellite system?
a) Galileo
b) GLONASS
c) GPS
d) All of the above
Which of the following uses mobile communication?
a) Smartwatches
b) Drones
c) IoT devices
d) All of the above
Which network is required for mobile phone calls?
a) WAN
b) MAN
c) PSTN
d) Cellular network
Which organization developed the Iridium satellite communication system?
a) NASA
b) Motorola
c) SpaceX
d) European Space Agency
Which type of satellite follows a polar orbit?
a) Communication satellite
b) Navigation satellite
c) Earth observation satellite
d) Weather satellite
Which of the following mobile network technologies supports the highest data rates?
a) 3G
b) 4G
c) 5G
d) 2G
Which country launched the first artificial satellite, Sputnik 1?
a) USA
b) China
c) Russia (Soviet Union)
d) Germany
Which component in mobile phones connects to cellular networks?
a) Processor
b) Antenna
c) Speaker
d) Battery
What does LTE stand for in mobile communication?
a) Long-Term Evolution
b) Local Transmission Equipment
c) Low-Traffic Ethernet
d) Large Telecommunication Exchange
Which type of orbit do most communication satellites use?
a) Low Earth Orbit (LEO)
b) Medium Earth Orbit (MEO)
c) Geostationary Orbit (GEO)
d) Highly Elliptical Orbit (HEO)
Which of the following is a major challenge for mobile communication in rural areas?
a) High-speed internet availability
b) Low population density
c) Limited network coverage
d) All of the above
