Telecommunication

 

Telecommunication

 

MCQ

 

1. [K] What does the Greek word “tele” mean?
A. To share  B. Far off ✅  C. To connect  D. To receive

2. [K] What does the Latin word “communicare” mean?
A. To send  B. To connect  C. To share ✅  D. To receive

3. [K] Which of the following is a telecommunication device?
A. Calculator B. Printer                C. Radio ✅  D. Scanner

4. [U] Why is a network required in telecommunication?
A. To store information permanently  

B. To increase the size of devices  

C. To connect devices and allow information exchange ✅  

D. To convert every device into a wired device

5. [U] Which statement correctly distinguishes wired and wireless networks?
A. Wired uses wireless signals, while wireless uses cables  

B. Wired uses physical cables, while wireless works without physical cables ✅  

C. Wired is only for telephones, while wireless is only for computers  

D. Wired sends sound, while wireless sends pictures

6. [U] Which pair represents one wired and one wireless connection?
A. Wi-Fi and mobile network                  

B. Telephone line and cable  

C. Telephone line and Wi-Fi ✅           

D. Mobile network and Wi-Fi

7. [U] Which statement best describes the role of electronic devices in telecommunication?
A. They only store information                                       

B. They only receive information  

C. They help send and receive information over distance ✅  

D. They are used only in wireless communication

8. [A] A school wants to connect devices without using physical cables. Which type of network should it select?
A. Telephone line  

B. Wired network  

C. Wireless network ✅  

D. Cable network

9. [A] A television receives a programme transmitted from another place. Why is this telecommunication?
A. Because television stores the programme  

B. Because television is an electronic device only  

C. Because information is received from a distant place through a communication system ✅  

D. Because television always uses cables

10. [A] A health post in a remote village needs to send patient information to a hospital without using physical cables. Which communication method is most suitable?
A. Wired LAN
B. Wireless communication network ✅
C. Printer connection
D. Local storage device

 

 

QUESTIONS AND ANSWERS

 

[U]1. Describe the concept of telecommunication and mention the common devices used for it with suitable examples.

Telecommunication is the process of sending and receiving information over long distances with the help of electronic devices. Common telecommunication devices include telephone, mobile phone, radio, television, and computer. These devices help people communicate and exchange information from one place to another. For example, making a phone call, sending a message, or watching a television programme are common examples of telecommunication.

 

[U]2. Illustrate the role of a network in telecommunication and show how it helps devices exchange information.

A network is the connection of different communication devices that allows them to exchange information. In telecommunication, devices are connected through a network so that messages, sounds, pictures, and videos can travel from one place to another. A network may use wires or cables, such as telephone lines, or it may work wirelessly, such as through Wi-Fi or mobile networks. Thus, a network provides the communication path between the sender and receiver and makes long-distance communication possible.

Simple flow:
Sender → Communication Device → Network → Communication Device → Receiver

 

[U]3. Distinguish between wired and wireless networks used in telecommunication with suitable examples.

Wired Network	Wireless Network
It connects devices using physical wires or cables.	It connects devices without physical wires or cables.
The connection is established through a physical medium.	The connection works through wireless communication.
Telephone lines are an example of a wired network.	Wi-Fi and mobile networks are examples of wireless networks.
Devices require a cable connection for communication.	Devices can communicate without a direct cable connection.

Both wired and wireless networks are used to send and receive information, but they differ mainly in the way devices are connected.

 

[U]4. Discuss the different forms of information that can be transmitted through telecommunication with examples.

Telecommunication can transmit different forms of information over long distances. Messages can be sent as written information from one person to another. Sounds, such as human voice, can be transmitted during a telephone or mobile call. Pictures can also be shared through communication devices, while videos can be transmitted through communication networks. Therefore, telecommunication enables people to exchange messages, sounds, pictures, and videos quickly and easily.

 

[U]5. Interpret the origin of the word “telecommunication” and relate it to the concept of long-distance communication.

The word telecommunication is derived from the Greek word “tele”, which means “far off,” and the Latin word “communicare”, which means “to share.” Therefore, telecommunication literally means “sharing from far away.” This meaning is directly related to the modern concept of telecommunication because it involves sending and receiving information over long distances with the help of electronic devices and communication networks. Thus, the origin of the word clearly reflects the idea of long-distance communication.

 

 

 

[U]6. Why is a network necessary in telecommunication?

A network is necessary because it connects communication devices and allows them to exchange information. Through a network, messages, sounds, pictures, and videos can be transmitted from one place to another.

 

[A]7. Sita sends a message to her friend living in another city using a mobile phone. Show how this is an example of telecommunication.

This is an example of telecommunication because information is being sent over a long distance using an electronic device. The mobile phone uses a communication network to deliver the message.

 

[A]8. A school wants to connect devices without using physical cables. Which type of network should it use? Give a reason.

The school should use a wireless network because it allows devices to communicate without physical wires or cables. Wi-Fi is a suitable example of such a connection.

 

[A]9. Ram wants to send a picture to a person living far away. How can telecommunication help him?

Ram can use a mobile phone or computer connected to a network to send the picture. The network helps transmit the picture over a long distance to the receiver.

 

[A]10. A student watches a television programme transmitted from a distant place. Relate this situation to telecommunication.

This is related to telecommunication because information is transmitted over a long distance and received through an electronic device. The television receives the programme through a communication system.