
Understanding Mobile Communications
Quiz
•
Computers
•
9th Grade
•
Practice Problem
•
Hard
Afroja Rahman
FREE Resource
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the microphone in a mobile phone do?
Converts voice into light pulses
Converts voice into a digital signal
Converts voice into analog signals
Converts voice into electromagnetic waves
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How are zeros and ones transmitted in mobile communications?
By using different temperatures
By using different colors
By using different amplitudes
By using different frequencies
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why can't electromagnetic waves travel long distances?
They are blocked by the Earth's magnetic field
They lose strength due to physical objects and environmental factors
They are too heavy to travel far
They are absorbed by the atmosphere
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of cell towers in mobile communications?
To store subscriber information
To divide geographic areas into hexagonal cells
To convert digital signals into analog signals
To generate electromagnetic waves
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What connects cell towers to provide national or international connectivity?
Optical fiber cables
Radio waves
Copper wires
Satellite links
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the role of the mobile switching center (MSC)?
To convert analog signals to digital
To help cell towers locate subscribers
To manage frequency slots
To store all mobile phones
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens when you move outside the range of your home MSC?
Your phone switches off
You lose all connectivity
You are served by a foreign MSC
You need a new SIM card
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