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A-LevelComputer ScienceCommunication and internet technologies9618/31 · May/June 2025 · Q94 Marks

Secure Socket Layer (SSL) and Transport Layer Security (TLS) are two protocols.

  1. (a)State two functions of SSL/TLS. 1 2[2]
  2. (b)Give two examples of situations where the use of SSL/TLS would be appropriate. 1 2[2]

Mark scheme

Marking points from the official mark scheme (May/June 2025). The mark or mark type is shown in brackets.

  1. [1] Ensure security/privacy when using the internet
  2. [1] Data encryption
  3. [1] Identification / authentication of client and server
  4. [1] When transmitting authentication data e.g. passwords, session cookies
  5. [1] When transmitting data that must be protected from modification on its way to or from a server e.g. user input, or results from the server
  6. [1] When transmitting data classified as non-public.

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About this question

Topic
Communication and internet technologies, A-Level Computer Science (syllabus 9618). Structured question, 4 marks.
Source
A-Level Computer Science, May/June 2025 Paper 3 Variant 1, question 9.

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