Using public Wi-Fi safely

Name:

Date:

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Quick Questions

Shade in the A or B circle for each question.

1. Data sent over public Wi-Fi can be seen by other people on the same network.

A True

B False

2. Which is the safer choice at a cafe using public Wi-Fi?

A Log in to your bank account to check your balance

B Avoid logging in to important accounts

3. Which Wi-Fi network is usually safer to use?

A An open network that anyone can join with no password

B A network that needs a password

4. You need to pay for an online order while out and about. What should you do?

A Use mobile data instead of public Wi-Fi

B Connect to the free airport Wi-Fi and enter your card details

5. Public Wi-Fi is fine for entering passwords because the network is free.

A False

B True

Match the Pairs

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

Left column		Right column
1Free Wi-Fi, no password		AMaking a payment on public Wi-Fi is risky because card details sent over it could be seen by others.
2Wi-Fi with a password (WPA2)		BA password-protected network that is safer than an open one, though it is still shared with other people
3Avoid logging in or paying on public Wi-Fi because others may see your data		CAn open network that anyone nearby can join, so data sent over it can be seen by others
4Use mobile data as a safer choice for sensitive tasks when away from home		DLogging in to a bank account on an open public Wi-Fi network means others could see the login details.
5connect("Cafe_Free_WiFi") login("bank")		Eif task == "banking": connect("mobile data")
6if wifi == "public": pay("online shop")		Fif network == "public": skip(login, payment)

Definitions

public Wi-Fi risk

Fill in the Blanks

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

__ wifi == "public": print("Use mobile data")

if wifi __ "public": login = False

wifi = "public" login = _____ payment = False

wifi = "public" mobile = ____ print("Pay using mobile data")

if task == "login" __ task == "payment": print("Do not use public Wi-Fi")

Spot the Error

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

Question 1

A wifi = "Cafe_Free"

B is_open = True

C if not is_open:

D print("Avoid logins")

Question 2

A network = open

B if network == "open":

C use_mobile_data = True

Question 3

A task = "payment"

B on_public = true

C if on_public:

D print("Use mobile data")

Question 4

A public = True

B paying = True

C elif public and paying:

D print("Use mobile data")

Question 5

A def check_wifi(open_wifi)

B if open_wifi:

C return "Risky"

D return "Safer"

Answer Key

Using public Wi-Fi safely

Section A: Quick Questions

A — True

B — Avoid logging in to important accounts

B — A network that needs a password

A — Use mobile data instead of public Wi-Fi

A — False

Section B: Match the Pairs

Free Wi-Fi, no password → An open network that anyone nearby can join, so data sent over it can be seen by others

Wi-Fi with a password (WPA2) → A password-protected network that is safer than an open one, though it is still shared with other people

Avoid logging in or paying on public Wi-Fi because others may see your data → if network == "public": skip(login, payment)

Use mobile data as a safer choice for sensitive tasks when away from home → if task == "banking": connect("mobile data")

connect("Cafe_Free_WiFi") login("bank") → Logging in to a bank account on an open public Wi-Fi network means others could see the login details.

if wifi == "public": pay("online shop") → Making a payment on public Wi-Fi is risky because card details sent over it could be seen by others.

Section C: Definitions

public Wi-Fi risk — Data sent over public Wi-Fi can be seen by others, so avoid logging in or paying there. Use mobile data instead for sensitive tasks.

Section D: Fill in the Blanks

if wifi == "public":
    print("Use mobile data")

if wifi == "public":
    login = False

wifi = "public"
login = False
payment = False

wifi = "public"
mobile = True
print("Pay using mobile data")

if task == "login" or task == "payment":
    print("Do not use public Wi-Fi")

Section E: Spot the Error

C — The warning should show when the Wi-Fi is open. The condition should be 'if is_open:', not 'if not is_open:'.

A — The text open must be in quotes so it is a string. Without quotes Python looks for a variable called open. It should be network = "open".

B — In Python the Boolean value must be written with a capital T. It should be on_public = True.

C — An elif cannot start a decision without an if before it. The line should begin with if: 'if public and paying:'.

A — A function definition must end with a colon. It should be 'def check_wifi(open_wifi):'.