Year 10 Computing Exam Revision 2025

Front

Explain the formula in your own words in relation to the Parking System: (4 marks)

=IF(B4<= 4, "FREE", IF(B4<=5, $4, IF(B4<=6, $8, $18)))

Back

• The formula looks at the number in cell B4.
  (This number is the number of hours a car is parked.)

• If the car is parked for 4 hours or less,
  → the cost is FREE.

• If the car is parked for more than 4 hours but up to 5 hours,
  → the cost is $4.

• If the car is parked for more than 5 hours but up to 6 hours,
  → the cost is $8.

• If the car is parked for more than 6 hours,
  → the cost is $18.

Front

Explain how number plate data is protected and why privacy is important in parking systems. Use the terms (encryption, securely, hackers, access, harm, )- 3 marks

Back

• Number plate data is protected using encryption, which means the information is changed into a secret code so it is stored securely.

• Encryption stops hackers from getting access to the number plate data and using it to cause harm.

• Privacy is important because people do not want others to use their information (such as where they park or what time they arrive/leave) without permission.

Front

Explain how phishing emails trick people into giving away information.

(2 marks)

Back

• People pretend to be real organisations – Phishing emails often look like they are from banks, schools, or companies. They use real logos and colours to make the email look trustworthy.

• They create fear or urgency – The email may say things like “Your account will be locked!” or “You must update your details now!” to make people panic and act quickly.

• They use fake links or attachments – The email includes links that look real but lead to fake websites where people are asked to type usernames, passwords, or credit card details.

Front

Why is it risky to use the same weak password for all accounts?

(2 marks)

Back

• If a hacker cracks one weak password, they can easily break into all your accounts (email, banking, school systems).

• Weak passwords are easy to guess or hack, which means your personal data, identity, and files can be stolen or misused.

Front

Name two advantages of online shopping. (2 marks)

Back

You can shop anytime, compare prices easily and they can see and touch products before buying.

Front

Explain how data validation improves cybersecurity in enterprise systems. Provide an example. (3 marks)

Back

• Data validation checks the data before it enters the system to make sure it is correct, safe, and in the right format.

• It stops harmful or incorrect data (e.g., special symbols or fake information) from entering the enterprise system. This helps prevent cyber-attacks such as SQL injection or system errors.

• Example: A hospital login form only accepts a correct email format and blocks strange characters. This stops hackers from entering code into the username box, improving the system’s cybersecurity.

Front

What does OCR stand for, and what is its role in the parking system?  (2 marks)

Back

• OCR stands for Optical Character Recognition.

• Its role is to read and recognise the letters and numbers on car number plates.

Front

What data is collected when a car enters the parking area and why is it collected.

(5 marks)

Back

Number plate – so the system can identify the car and link it to the correct payment.
Entry time – so the system can calculate how long the car stays in the parking area.
Car image/photo – used for security to confirm the vehicle entering is the same vehicle that leaves.
Parking bay or location – helps the system manage which spaces are free or full.
Payment method or account details (if registered) – so the system can charge the driver correctly and quickly.