Network interface (wired and wireless adapter)

Name:

Date:

Class:

Quick Questions

Shade in the A or B circle for each question.

1. What does a network interface let a device do?

A Send and receive data on a network

B Store files permanently when the power is off

2. Which network interface part is used for a wired connection?

A Ethernet port

B Wireless adapter

3. Which network interface part lets a laptop join Wi-Fi?

A Ethernet port

B Wireless adapter

4. Where is the network interface found in most devices?

A Always bought as a separate add-on

B Built inside the device

5. A tablet connects to Wi-Fi with no cable. Which is true?

A It uses its built-in wireless adapter

B It uses an Ethernet port

Match the Pairs

Draw a line connecting each item on the left to its match on the right.

Left column		Right column
1Ethernet port		Abuilt-in network interface
2wireless adapter		BThe socket on a network interface where a cable plugs in for a wired network connection
3A network interface is the internal component that lets a device send and receive data on a network		CThe part of a network interface that sends and receives data over Wi-Fi without a cable
4Most laptops, phones and tablets already have a network interface built in, so you don't need to add one		DA wireless adapter connects using Wi-Fi and needs no cable. The Ethernet port is the part that uses a cable.
5A wireless adapter needs an Ethernet cable plugged in to join a network.		EA network interface is an internal hardware component, not an app. It is usually built into the device.
6A network interface is an app you download to connect to a network.		Fnetwork interface

Definitions

network interface

Fill in the Blanks

Complete each line of code by filling in the missing parts.

A _________________ sends and receives data

Ethernet port = _____ network connection

________________ connects a device to Wi-Fi

An Ethernet ____ takes a network cable

wired -> Ethernet port wireless -> ________________

Spot the Error

Shade in the letter of the line that contains an error.

Question 1

A interface = 'Ethernet port

B uses_cable = True

C if uses_cable:

D print('Wired link')

Question 2

A adapter = 'wireless'

B signal = True

C if signal = True:

D print('Wi-Fi connected')

Question 3

A port = 'Ethernet'

B cable = 'plugged in'

C if cable == 'plugged in':

D print('Wi-Fi link ready')

Question 4

A has_wifi = True

B adapter = 'Ethernet port'

C if has_wifi:

D print('Wi-Fi works')

Question 5

A devices = ['PC', 'tablet']

B for d in devices:

C nic = 'built in'

D print(d, nic

Answer Key

Network interface (wired and wireless adapter)

Section A: Quick Questions

A — Send and receive data on a network

A — Ethernet port

B — Wireless adapter

B — Built inside the device

A — It uses its built-in wireless adapter

Section B: Match the Pairs

Ethernet port → The socket on a network interface where a cable plugs in for a wired network connection

wireless adapter → The part of a network interface that sends and receives data over Wi-Fi without a cable

A network interface is the internal component that lets a device send and receive data on a network → network interface

Most laptops, phones and tablets already have a network interface built in, so you don't need to add one → built-in network interface

A wireless adapter needs an Ethernet cable plugged in to join a network. → A wireless adapter connects using Wi-Fi and needs no cable. The Ethernet port is the part that uses a cable.

A network interface is an app you download to connect to a network. → A network interface is an internal hardware component, not an app. It is usually built into the device.

Section C: Definitions

network interface — The internal part of a device that lets it send and receive data on a network, using an Ethernet port for wired links or a wireless adapter for Wi-Fi.

Section D: Fill in the Blanks

A network interface sends and receives data

Ethernet port = wired network connection

wireless adapter connects a device to Wi-Fi

An Ethernet port takes a network cable

wired -> Ethernet port
wireless -> wireless adapter

Section E: Spot the Error

A — The string is missing its closing quote. It should be interface = 'Ethernet port'.

C — A single = assigns a value, but an if needs a comparison. It should be if signal == True: to check whether the wireless adapter has a signal.

D — An Ethernet port gives a wired link, not a Wi-Fi one. The message should say 'Wired link ready'.

B — Wi-Fi needs a wireless adapter, not an Ethernet port, which is for cables. It should be adapter = 'wireless adapter'.

D — The print call is missing its closing bracket. It should be print(d, nic).