MOBILE COMMUNICATION BRIGHT STUDENT QUIZ 1

Mobile communication technology used in 2021 is _______.

• 4G

• 3G

• 5G

• Both a and c

1G has the speed of _________.

• 2.4 kbps

• 3 kbps

• 4 kbps

• 5 kbps

In cellular network frequency spectrum are divided into _________.

• Discrete channels

• Non-discrete channel

• Class of frequency

• None of the above

In which spectrum available spectrum is divided and further these narrow bands are divided equally into time slots?

• TDMA

• CDMA

• FDMA

• All the above

GSM is implemented using 4 frequency ranges and ______ number of multiplexing techniques.

• 4

• 3

• 5

• 6

GSM 1800 uses uplink frequency in the range between _______.

• 1850 to 1910 MHZ

• 1930 to 1990 MHZ

• 1710 to 1785 MHz

• 1805 to 1880 MHz

What is the role of the radio subsystem in GSM architecture?

• Manage call setup and routing
• Provide internet access
• Manage radio frequency spectrum
• None of the above

How does GSM ensure secure communication between the mobile device and the base station?

• By using encryption algorithms
• By using a firewall
• By using a VPN
• By using an antivirus software

A cellular network in which the sum of the area is divided into a smaller portion of are is called _______

• Zone

• Perimeter

• Fence

• Cells

Which of the following are the components of a cell?

• Base station

• RF channels

• Transmitter and receiver

• Both a and b