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Access matrix model for user authentication contains _____________

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Access matrix model for user authentication contains _____________

(a) a list of objects

(b) a list of domains

(c) a function which returns an object’s type

(d) all of the mentioned

This question was addressed to me during an online exam.

The query is from Protection Concepts topic in division Protection of Operating System

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Best answer
Right choice is (d) all of the mentioned

The explanation: None.

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