Skip to content

Cambridge AS & A Level Computer Science

6.1Data security

Data security in Cambridge AS & A Level Computer Science: what the syllabus expects you to know, the learning objectives and how to practise.
Subtopic65 practice questions3 lessons

Learning objectives

What the syllabus expects you to be able to do.

  1. 6.1.1Explain the difference between security, privacy and integrity of data.
  2. 6.1.2Describe the threats posed by networks and the internet, and methods that restrict the risks.
  3. 6.1.3Describe security measures from a stand-alone PC to a network, including authentication, firewalls, anti-virus software and encryption.

Lessons

  • Data security, privacy and integrity

    45 min

    Full access
  • Protecting systems and data: accounts, authentication and defences

    55 min

    Full access
  • Threats and vulnerabilities to computer systems

    55 min

    Full access

Join to read every lesson, or see what Full access includes.

Sample question

A sample question on this topic. Answer it, check it, then read the worked answer.

Data security: sample question

1 mark

A clerk at a school changes a learner's term mark from 48 to 84 without permission. Which property of the data has been lost?

Choose one answer

Turn Data security into a strength.

Practise with instant marking, see your mastery grow and get a study plan built around your exam date.