You use the ufsrestore command to extract the whole content of a file system (stored to tape with ufsdump) onto another file system.
Which statement about inode allocation is true?

A.
The new file systems inodes are allocated successively as the files are restored, independent of the inode numbers recorded to tape.

B.
ufsrestore consults the inode map in each cylinder.
If an inode to be restored is already allocated, ufsrestore quits with a fail message.

C.
The inodes are allocated such that the inode numbers after the restore are identical to the inode numbers recorded on tape, effectively overwriting inodes that had been allocated before the restore.

D.
ufsrestore tries to allocate inode numbers for the restored files as they are
recorded on tape and evades to new, unallocated inodes whenever an inode number is already allocated in the file system.

Explanation:

Ufsrestore will allocate and change inode, there’s why you need to do a full backup after restore.