Which concept applies to client-side data deduplication?

A.
The client creates a journal file to track redundant files.

B.
The client compares the server and client activity log files to determine if the data will be
deduplicated.

C.
The IBM Tivoli Storage Manager V6.3 server creates a log file named dedup.log to track
redundant files.

D.
The client creates extents which are parts of files that are compared with other file extents to
identify duplicates.

Explanation: