Describe POSIX and ACL Permission Rubrics POWERSCALE-DEPLOY Practice Questions (Page 4)

Questions 16–20

1. 16foundation · easy

   What is the effect of setting a default ACL on a directory?

   • AIt immediately changes the permissions of all existing files in the directory
   • BIt defines the ACL that will be inherited by newly created subdirectories and files
   • CIt prevents any user from creating files in the directory
   • DIt grants the directory owner full control over all subdirectories
   Reveal Solution Discussion Select an answer first
2. 17foundation · easy

   A user is the owner of a file. Which ACL entry determines the user's permissions?

   • AThe named user entry for that user
   • BThe owning group entry
   • CThe user object (owner) entry
   • DThe 'others' entry
   Reveal Solution Discussion Select an answer first
4. 18application · medium

   A file has an ACL with the following entries: user::rw-, user:alice:r--, group::r--, mask::rw-, other::---. Alice is not the owner and not in the owning group. What is Alice's effective permission?

   • ARead only
   • BRead and execute
   • CNo access
   • DRead and write
   Reveal Solution Discussion Select an answer first
5. 19foundation · easy

   What is the primary purpose of an Access Control List (ACL) compared to standard POSIX permissions?

   • ATo provide finer-grained control by allowing permissions to be set for multiple named users and groups
   • BTo provide encryption for files and directories
   • CTo automatically grant all users full control over a file
   • DTo replace the owner, group, and others permissions with a single unified permission set
   Reveal Solution Discussion Select an answer first
6. 20foundation · easy

   How do ACLs interact with the traditional POSIX permission bits?

   • AACLs are ignored by the operating system if traditional bits are set
   • BACLs are only used when the traditional bits are set to 000
   • CACLs replace the traditional bits entirely when they are present
   • DACLs work alongside the traditional bits, with the traditional bits representing the owner and others entries
   Reveal Solution Discussion Select an answer first