Description
Explain which implementation of the protection matrix is more suitable for the following
operations:
(a) Granting read access to a file for all users.
(b) Revoking write access to a file from all users.
(c) Granting write access to a file to John, Lisa, Christie, and Jeff.
(d) Revoking execute access to a file from Jana, Mike, Molly, and Shane.
Explanation & Answer
Attached.
(a)
Granting read access to a file for all users.
Access Control Lists (ACL): they are based on a POSIX draft standards. This ACLs extend the
UNIX DAC to the much finer-grained scheme, allowing separate permission for individual users
and differen...
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