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What are the characteristics of the Hydra system?

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in Operating System by (102k points)
What are the characteristics of the Hydra system?

(a) It consists of known access rights and interpreted by the system

(b) A user can of protection system can declare other rights

(c) Hydra system is not flexible

(d) Hydra doesn’t provide rights amplification

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I'm obligated to ask this question of Protection in section Protection of Operating System

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Correct choice is (a) It consists of known access rights and interpreted by the system

Best explanation: None.

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