Which of these is true in regards to deleting a file from a file system on a Cisco Catalyst 6500 Series Supervisor Engine 720?

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642-973

A.
The file is permanently deleted from a supervisor bootflash using the delete command.

B.
The squeeze command must be used on CompactFlash to permanently delete a file.

C.
The undelete command is used to undelete a file on a boot disk.

D.
The squeeze command is used to reclaim the space of deleted files on a supervisor bootflash.

Explanation:
http://www.cisco.com/en/US/products/sw/secursw/ps5318/prod_installation_guide09186a00803e4727.html