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Cambridge AS & A Level Computer Science

13.2File organisation and access

File organisation and access in Cambridge AS & A Level Computer Science: what the syllabus expects you to know, the learning objectives and how to practise.
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Learning objectives

What the syllabus expects you to be able to do.

  1. 13.2.1Compare serial, sequential and random file organisation and choose an organisation and access method for a problem.
  2. 13.2.2Describe and use hashing algorithms to read data from and write data to a file.

Lessons

  • File organisation, access and hashing

    45 min

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Sample question

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

File organisation and access: sample question

1 mark

A random file has 7 slots numbered 0 to 6. The hashing algorithm is key MOD 7. In which slot is the record with key 5836 stored (if there is no collision)?

Only if the answer has a unit, e.g. cm or km/h.

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