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O-LevelComputer ScienceThe Internet and its uses2210/11 · May/June 2019 · Q611 Marks

A law company holds a lot of sensitive data about its clients.

  1. (a)It currently requires employees to enter a username and a password to log-in to an account. Each password must be 8 letters. The company wants to increase the security of the log-in system. Identify two improvements the company could use to make the log-in system more secure. Explain how each improvement increases security. Improvement 1 Explanation Improvement 2 Explanation[4]
  2. (b)The law company wants to purchase a new file server. The company can purchase a server with either solid state storage or magnetic storage. After discussion, it decides to purchase a file server with magnetic storage. Explain why the company chose magnetic storage rather than solid state storage.[4]
  3. (c)The law company also uses optical storage. Give three different examples of optical storage. 1 2 3[3]

Mark scheme

Marking points from the official mark scheme (May/June 2019). The mark or mark type is shown in brackets.

  1. [1] Make the password require more characters
  2. [1] Makes the password harder to crack/guess
  3. [1] More possible combinations for the password
  4. [1] Make the password require different types of characters
  5. [1] Makes the password harder to crack/guess
  6. [1] More possible combinations for the password
  7. [1] Use a biometric device
  8. [1] Hard to fake a person's biological data // data is unique
  9. [1] Two-step verification // Two factor-authentication
  10. [1] Adds an additional level to hack
  11. [1] Have to have the set device for the code to receive it
  12. [1] Drop-down boxes // onscreen keyboard
  13. [1] To prevent passwords being obtained using keylogger
  14. [1] Request random characters
  15. [1] Won't reveal entire password
  16. [1] Set number of password attempts
  17. [1] Will lock account if attempting to guess
  18. [1] Will stop brute-force attacks
  19. [1] More read/write cycles (over its lifetime) // greater longevity ...
  20. [1] ... likely to be a lot of read/write functions each day
  21. [1] Read/write speed is sufficient ...
  22. [1] ... even though it is slower than solid-state
  23. [1] Cheaper per unit of data stored ...
  24. [1] ... better value for the company to purchase
  25. [1] ... so the law company can afford to buy a server with greater storage capacity
  26. [1] No requirement for portability ...
  27. [1] ... as a server, it does not need to be moved
  28. [1] Trusted technology ...
  29. [1] ... it has been traditionally used for many years
  30. [1] DVD
  31. [1] CD
  32. [1] Blu-ray

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About this question

Topic
The Internet and its uses, O-Level Computer Science (syllabus 2210). Structured question, 11 marks.
Source
O-Level Computer Science, May/June 2019 Paper 1 Variant 1, question 6.

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