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Network Data Transmission Basics

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Network Data Transmission Basics

Network diagram illustration

📡 Part 1: Network Basics

1. Which type of network connection uses cables to transmit data?

Wi-Fi

Ethernet

Bluetooth

Mobile data

2. What is a data packet?

A small piece of data sent across a network

A type of cable

A wireless signal

A security program

3. Which network hardware devices help transmit data? (Select all that apply)

Router

Modem

Switch

Printer

Network Interface Card (NIC)

4. Fill in the blank: A _____________ connects your home network to the internet.

Answer: _________________________

5. True or False: Wireless networks are always faster than wired networks.

True

False

🔒 Part 2: Network Security & Hardware

6. What is encryption used for in networks?
7. Match the network device to its main function by drawing lines:
Router
Firewall
Switch
Access Point
Provides Wi-Fi signals
Connects multiple devices in a network
Blocks unauthorised access
Directs data between networks
8. Complete this sentence: "Data is transmitted in a wireless network by _______________"
9. Why is network security important for data transmission? Give two reasons.

Reason 1: _________________________________________________

Reason 2: _________________________________________________

🎯 Part 3: Apply Your Knowledge

10. Extension Task: Design a simple home network. In the box below, draw and label at least 4 devices that would help transmit data safely from your computer to the internet.
11. Explain one advantage of wired networks and one advantage of wireless networks.

Wired advantage: ________________________________________

Wireless advantage: ______________________________________

12. Reflection: How does understanding network data transmission help you use technology more safely?

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