Disk Operating System (DOS) Question:

.... is used in operating system to separate mechanism from policy.

a. Single level implementation
b. Two level implementation
c. Multi level implementation
d. None

b. Two level implementation

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The OS used to operate the mobile phone is a: a. Smart card OS b. Embedded OS c. Multi user OS d. None of above	______ is used in operating system to separate mechanism from policy. a. Single level implementation b. Two level implementation c. Multi level implementation d. None