Describe POSIX and ACL Permission Rubrics POWERSCALE-DEPLOY Practice Questions (Page 5)

Questions 21–25

1. 21application · medium

   A PowerScale cluster exports a directory via NFS to Linux clients and via SMB to Windows clients. The directory currently uses POSIX permissions. Which statement accurately describes how permissions are enforced for these clients?

   • ANFS clients use POSIX permissions, while SMB clients use ACLs, even if the file only has POSIX permissions.
   • BBoth NFS and SMB clients use the same underlying POSIX permissions, but SMB clients may see an ACL view that is derived from the POSIX bits.
   • CPermissions are enforced separately for each protocol, so a change via NFS does not affect SMB access.
   • DNFS clients use ACLs, while SMB clients use POSIX permissions.
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2. 22application · medium

   An administrator wants to ensure that all new files created in a directory automatically grant read access to the 'auditors' group. Which configuration should be used?

   • ACreate a script that runs periodically to add the auditors group to new files.
   • BSet a default ACL on the directory that includes a named group entry for 'auditors' with read permission.
   • CSet the group ownership of the directory to 'auditors' and set the group bits to r--.
   • DSet the 'others' permissions on the directory to r--.
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4. 23foundation · easy

   In PowerScale OneFS, how are POSIX and ACL permissions used for access decisions?

   • AOneFS only uses Windows ACLs for all clients, ignoring POSIX permissions
   • BOneFS uses the same permission model for both NFS and SMB clients, translating between POSIX and Windows ACLs as needed
   • COneFS uses POSIX permissions for NFS clients and Windows ACLs for SMB clients, with no translation
   • DOneFS only uses POSIX permissions for all clients, ignoring Windows ACLs
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5. 24foundation · easy

   In the standard POSIX permission model, what does the 'execute' permission on a directory allow a user to do?

   • AModify the contents of files within the directory
   • BTraverse the directory to access files and subdirectories within it
   • CRename or delete files within the directory
   • DList the names of files and subdirectories within the directory
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6. 25foundation · easy

   In a POSIX ACL, what is the function of a default ACL on a directory?

   • AIt specifies the maximum permissions that any user can have on the directory
   • BIt overrides the permissions of all existing files in the directory
   • CIt defines the permissions that are inherited by newly created files and subdirectories within the directory
   • DIt is used to grant permissions to the directory owner only
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