Maurice Tutor

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About Maurice Tutor

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Elementary,Middle School,High School,College,University,PHD

Expertise:
Algebra,Applied Sciences See all
Algebra,Applied Sciences,Biology,Calculus,Chemistry,Economics,English,Essay writing,Geography,Geology,Health & Medical,Physics,Science Hide all
Teaching Since: May 2017
Last Sign in: 398 Weeks Ago, 2 Days Ago
Questions Answered: 66690
Tutorials Posted: 66688

Education

  • MCS,PHD
    Argosy University/ Phoniex University/
    Nov-2005 - Oct-2011

Experience

  • Professor
    Phoniex University
    Oct-2001 - Nov-2016

Category > Computer Science Posted 27 Jul 2017 My Price 3.00

Alice permission

Consider a computer system with three users: Alice, Bob, and Cyndy. Alice owns the file alicerc, and Bob and Cyndy can read it. Cyndy can read and write Bob's file bobrc, but Alice can only read it. Only Cyndy can read and write her file cyndyrc. Assume that the owner of each of these files can execute it.

a. Create the corresponding access control matrix.

b. Cyndy gives Alice permission to read cyndyrc, and Alice removes Bob's ability to read alicerc. Show the new access control matrix.

Answers

Maurice Tutor
(5)
Status NEW Posted 27 Jul 2017 08:07 PM My Price 3.00

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