Which three statements are true about /etc/at.allow and /etc/at.deny files? (Choose three.)

Question

Options

• AIf only the /etc/at.deny file exists, all users are denied from using at, except the root user.
• BIf /etc/at.allow and /etc/at.deny files do not exist, all users are permitted to use at.
• CIf /etc/at.allow and /etc/at.deny files do not exist, only the root user is permitted to use at.
• DIf only the /etc/at.allow file exists, only the users whose names are listed in the /etc/at.allow
• EIf /etc/at.allow and /etc/at.deny files exist, only the users whose names are listed in

• A
  20% (4)
• B
  10% (2)
• C
  70% (14)

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