ComputerScienceExpert

(11)

$18/per page/

About ComputerScienceExpert

Levels Tought:
Elementary,Middle School,High School,College,University,PHD

Expertise:
Applied Sciences,Calculus See all
Applied Sciences,Calculus,Chemistry,Computer Science,Environmental science,Information Systems,Science Hide all
Teaching Since: Apr 2017
Last Sign in: 9 Weeks Ago, 3 Days Ago
Questions Answered: 4870
Tutorials Posted: 4863

Education

  • MBA IT, Mater in Science and Technology
    Devry
    Jul-1996 - Jul-2000

Experience

  • Professor
    Devry University
    Mar-2010 - Oct-2016

Category > Programming Posted 03 May 2017 My Price 8.00

a UNIX system

Hi i need help to finish this access control matrix in UNIX-style.

 

 

Consider the relationship between access control matrices and UNIX-style file
permissions. Consider a UNIX system with only four users: Alice, Chuck, Bob,
and Dave. Assume that there is no root principle. These users are assigned
to groups as shown in the table below:
Group Members Alice Alice Bob Bob Chuck Chuck Dave Dave g Alice, Chuck h Bob, Chuck, Dave One possible access control policy for two files File1 and File2 is given by the
UNIX permissions shown in the table below, where r = read, w = write and
x = execute
Own
er Grou
p User
permission(s) Group
permission(s) Other
permissio
n File1 Bob g r r, w x File2 Alice Bob r, x w x Complete the access control matrix below that corresponds to the UNIX
permissions above. The permission set in each entry of the matrix is a subset
of {r, w, x}
Alice
File 1 File2 Bob Chuck Dave

Attachments:

Answers

(11)
Status NEW Posted 03 May 2017 01:05 AM My Price 8.00

-----------

Attachments

file 1493773974-Solutions file 2.docx preview (51 words )
H-----------ell-----------o S-----------ir/-----------Mad-----------am ----------- Th-----------ank----------- yo-----------u f-----------or -----------you-----------r i-----------nte-----------res-----------t a-----------nd -----------buy-----------ing----------- my----------- po-----------ste-----------d s-----------olu-----------tio-----------n. -----------Ple-----------ase----------- pi-----------ng -----------me -----------on -----------cha-----------t I----------- am----------- on-----------lin-----------e o-----------r i-----------nbo-----------x m-----------e a----------- me-----------ssa-----------ge -----------I w-----------ill----------- be----------- qu-----------ick-----------ly -----------onl-----------ine----------- an-----------d g-----------ive----------- yo-----------u e-----------xac-----------t f-----------ile----------- an-----------d t-----------he -----------sam-----------e f-----------ile----------- is----------- al-----------so -----------sen-----------t t-----------o y-----------our----------- em-----------ail----------- th-----------at -----------is -----------reg-----------ist-----------ere-----------d o-----------n -----------THI-----------S W-----------EBS-----------ITE-----------. ----------- Th-----------ank----------- yo-----------u -----------
Not Rated(0)