← Years 7–8 Digital Systems

Comparing wired and wireless networks

Wired links are usually faster, more reliable and more secure. Wireless links are more mobile and convenient. Choose the one that best suits the situation.

Part of: 7-8 Digital Technologies Vic Curric - Digital Systems and Security — Module 26, ACARA Digital Technologies Years 5–6 — Networks and Sharing Data — Module 13, ACARA Digital Technologies Years 7–8 — Wired and Wireless Networks — Module 29

Understanding Comparing wired and wireless networks in Years 7–8 Digital Systems

What it does: Wired links are usually faster, more reliable and more secure, so they suit situations where the device stays in one place and the connection must not fail. Mobility is the big advantage of wireless. A cable limits how far you can move. A fixed device that needs speed and reliability is best on a wired link. Wi-Fi lets devices move around freely, which is its main advantage over wired links. The strengths of wireless are mobility and convenience, not speed, reliability or security.

Common mistakes: Wired links are usually faster than wireless links. The line should be speed ← 'usually faster'. A wired link needs a cable, so it is the wireless link that gives mobility. Line 1 should test link = 'wireless'.

Class: _____________________ · Name: _____________________ · Date: _________

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This module's key terms are also in a printable crossword (Modules 26–74) and word search (Modules 4–74).

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Learning

Duo

Which connection is usually faster and more stable for a gaming PC that stays in one spot?

Wired (Ethernet cable)Wireless (Wi-Fi)

Matches

Wireless is always faster, more reliable and more secure than wired.

↓

This is wrong. Wired links are usually faster, more reliable and more secure. Wireless can slow down or drop out because of distance, walls and interference.

Applying

Meanings

Term

wired vs wireless

Meaning

Wired links are usually faster, more reliable and more secure. Wireless links are more mobile and convenient. Choose the one that best suits the situation.

Practice

IF need is speed OR reliability OR security THEN

Testing

Gaps

IF priority = speed THEN use

Check Answer

Spots

1link ← 'wired'

2speed ← 'usually slower'

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Quick Questions

1. Which connection is usually faster and more stable for a gaming PC that stays in one spot?

A. Wired (Ethernet cable) ✓

B. Wireless (Wi-Fi)

Wired links are usually faster and more reliable, so they suit a device that never moves, like a gaming PC.

2. Which statement is true?

A. Wired lets you walk around the school freely while connected

B. Wireless lets you move around while staying connected ✓

Mobility is the big advantage of wireless. A cable limits how far you can move.

3. Which type of link is usually less affected by interference from walls and other devices?

A. Wired ✓

B. Wireless

Cables are not disturbed by walls or microwave ovens, so wired links are usually more reliable. Wireless signals can drop or slow down.

4. Which type of link is usually harder for a stranger to spy on?

A. Wired, because someone needs to physically plug in ✓

B. Wireless, because the signal stays inside the room

Wireless signals can travel through walls, so people nearby may try to pick them up. Wired links are usually more secure.

5. Your class has 25 tablets that students carry between rooms. Which network is the best fit?

A. Wired, because cables are always better

B. Wireless, because the tablets need to move ✓

Choose the link that suits the situation. Mobility and convenience matter more for tablets, even if wired is usually faster.

Match the Pairs

Ethernet cable (wired) → A wired link that is usually faster, more reliable and more secure, but the device must stay plugged in near the port.

Wi-Fi (wireless) → A wireless link that is more mobile and convenient because there are no cables, but it can be slower and affected by interference.

A school computer used for online exams needs a fast, steady and secure connection that will not drop out. → Choose wired: plug in an Ethernet cable

Students carry tablets around the library and classrooms and need to stay connected as they move. → Choose wireless: connect to Wi-Fi

Wireless is always faster, more reliable and more secure than wired. → This is wrong. Wired links are usually faster, more reliable and more secure. Wireless can slow down or drop out because of distance, walls and interference.

Wired is the best choice for a phone used all over the school because cables are more mobile. → This is wrong. Cables limit movement, so wireless is the more mobile and convenient choice. Wired links are better for speed, reliability and security.

Key Term

wired vs wireless

Wired links are usually faster, more reliable and more secure. Wireless links are more mobile and convenient. Choose the one that best suits the situation.

Fill in the Blanks

1. IF priority = speed THEN use wired

Hint: Type the connection type that is usually faster.

2. IF priority = mobility THEN use wireless

Hint: Type the benefit of being able to move around while connected.

3. Laptop moving around the school: wireless

Hint: Type the connection type that suits a device that moves around.

4. Harder to intercept, so wired is more secure

Hint: Type the word describing how well the link protects data from being intercepted.

5. IF gaming at a desk THEN use wired ELSE use wireless

Hint: Type the pseudocode keyword that gives the alternative choice for a different situation.

Spot the Error

Question 1

A link ← 'wired'

B speed ← 'usually slower'

C reliable ← TRUE

Line B — Wired links are usually faster than wireless links. The line should be speed ← 'usually faster'.

Question 2

A mobile ← link = 'wired'

B IF mobile THEN

C PRINT 'Move around freely'

D END IF

Line A — A wired link needs a cable, so it is the wireless link that gives mobility. Line 1 should test link = 'wireless'.

Question 3

A need ← 'mobility'

B IF need ≠ 'mobility' THEN

C link ← 'wireless'

D END IF

Line B — The wireless choice should run when the need IS mobility. The condition should use = instead of ≠.

Question 4

A wired ← 'uses a cable'

B wireless ← 'uses radio waves'

C PRINT 'Wired is more secure'

D PRINT 'Wireless: needs wires'

Line D — Wireless links do not need wires. Their strength is that devices can roam, so the line should say 'Wireless: can roam'.

Question 5

A device ← 'laptop in class'

B moves ← TRUE

C IF moves THEN use 'wired'

Line C — A laptop that moves around the classroom needs the mobility of a wireless link. A cable would limit it, so the line should use 'wireless'.

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