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In general how many key elements constitute the entire security structure?

a) 1
b) 2
c) 3
d) 4

Answer: d
Explanation: The 4 key elements that constitute the security are: confidentiality, integrity, authenticity & availability. Authenticity is not considered as one of the key elements in some other security models, but the popular CIA Triad eliminates this as authenticity at times comes under confidentiality & availability.

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