6.2. Data Integrity
A subsection of Computer Science, 9618, through 6. Security, privacy and data integrity
Listing 2 of 2 questions
A company wants to store data about its employees in a computer system. The owner of the company wants to ensure the security and integrity of the data. State why data needs to be kept secure. One way the data stored in a computer can be kept secure is by using back-up software. Give two other ways the data stored in a computer can be kept secure. The data about the employees is currently stored on paper. The data needs to be transferred into the computer system. Data validation and verification are used to help maintain the integrity of the data. Identify and describe one method of data verification that can be used when transferring the data from paper to the computer. Method Description The company needs to transfer the date of birth of each employee into the computer system. Give one example of how each of the following data validation rules can be used to validate the date of birth when it is entered into the system. Range check Presence check Length check Explain why the data in the system may not be correct even after validating and verifying the data.
9618_s22_qp_13
THEORY
2022
Paper 1, Variant 3
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Questions Discovered
2