O-LevelComputer ScienceData Transmission2210/12 · May/June 2020 · Q111 Mark

Which of the following methods can be used to secure data in an office?

AFirewall

BData compression

CDisk defragmentation

DOperating system update

✓ Correct answer

A: Firewall

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Topic: Data Transmission, O-Level Computer Science (syllabus 2210). Multiple choice, 1 mark.
Source: O-Level Computer Science, May/June 2020 Paper 1 Variant 2, question 11.

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