Questions & Answers
Browse all 25 questions from the
Telecommunications Basics study set below.
Each question shows the correct answer — select a study format above to practice interactively.
1
Which invention by Alexander Graham Bell changed the way people talk to each other over long distances?
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A
The lightbulb
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B
The telephone
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C
The television
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D
The typewriter
2
What type of invisible waves do mobile phones use to send and receive information?
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A
Sound waves
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B
Ocean waves
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C
Radio waves
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D
Heat waves
3
What is the primary function of a satellite orbiting the Earth in telecommunications?
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A
To take photos of the moon
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B
To act as a relay station for signals
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C
To clean space debris
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D
To control the weather
4
What do we call the global network that connects billions of computers and devices together?
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A
The Internet
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B
The Radio
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C
The Post Office
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D
The Telephone line
5
Which of these devices was commonly used in the past to send typed messages across wires using codes?
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A
A fax machine
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B
A telegraph
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C
A smartphone
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D
A record player
6
In fiber optic technology, what is used to transmit data through thin glass strands?
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A
Sound
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B
Electricity
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C
Light
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D
Wind
7
Which of these is a wireless way to connect devices like headphones to a computer over a short distance?
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A
Bluetooth
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B
A USB cable
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C
A telephone wire
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D
A satellite link
8
What part of a mobile phone captures your voice and turns it into an electrical signal?
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A
The screen
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B
The battery
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C
The microphone
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D
The speaker
9
What is the main purpose of a cell tower?
-
A
To provide electricity to houses
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B
To transmit and receive mobile signals
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C
To store water
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D
To act as a lightning rod
10
Before modern digital phones, what device did people use to send a paper document instantly over a telephone line?
-
A
A printer
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B
A scanner
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C
A fax machine
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D
A projector
11
What do we call the address that every computer or device has on the internet to be identified?
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A
A street address
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B
An IP address
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C
A zip code
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D
A serial number
12
Which of these technologies allows you to have a face-to-face conversation with someone in another country?
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A
Video calling
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B
Radio broadcast
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C
Writing a letter
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D
Reading a newspaper
13
What material is commonly used to make the cables that carry internet data deep under the ocean?
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A
Copper and glass
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B
Wood and plastic
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C
Rubber and steel
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D
Cloth and paper
14
What is the term for a message sent through the postal service?
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A
An email
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B
A text message
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C
A letter
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D
A video call
15
Which device converts radio waves into sound so you can hear music or news broadcasts?
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A
A microwave
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B
A radio receiver
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C
A blender
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D
A flashlight
16
What is the purpose of an antenna on a communication device?
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A
To keep the device cool
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B
To send or receive electromagnetic waves
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C
To protect the battery
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D
To display images
17
What type of signal is made up of just ones and zeros, which computers use to communicate?
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A
Analog signal
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B
Digital signal
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C
Sound signal
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D
Light signal
18
What do we call the process of sending an email from one person to another?
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A
Electronic mail
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B
Postal mail
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C
Physical delivery
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D
Broadcast
19
Which invention allowed people to receive moving images and sound in their homes?
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A
The telescope
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B
The television
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C
The compass
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D
The barometer
20
What do we call the speed at which data travels over the internet?
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A
Weight
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B
Bandwidth
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C
Volume
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D
Height
21
What do you need to connect your home computer to the internet?
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A
A router
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B
A telescope
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C
A magnifying glass
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D
A hammer
22
Which of these is a common wireless technology used in homes to provide internet access to multiple devices?
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A
Wi-Fi
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B
Morse code
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C
A telegraph
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D
A landline
23
What is the function of a 'browser' on a computer or tablet?
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A
To type documents
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B
To view websites on the internet
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C
To play video games only
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D
To take photographs
24
Which of these sends information instantly and is often used for short, quick text communication?
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A
A handwritten letter
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B
Instant messaging
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C
A newspaper
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D
A library book
25
What was the main way people communicated across vast distances before electricity was used?
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A
Using light signals or messengers
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B
Using video calls
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C
Using text messages
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D
Using the internet
