What happens when a duplicate hash value is imported into a KFF database?

Question

Options

• AIt will not be accepted.
• BIt will be marked as a duplicate.
• CThe database will be corrupted.
• DThe database will hide the duplicate.

• A
  90% (46)
• B
  2% (1)
• C
  6% (3)
• D
  2% (1)

Explanation

KFF (Known File Filter) databases are designed with built-in duplicate prevention - when you attempt to import a hash value that already exists in the database, the system simply rejects it outright. This keeps the database clean, non-redundant, and efficient for hash-matching operations during forensic analysis.

Why the distractors are wrong:

• B - KFF doesn't silently mark and store duplicates; it refuses the import entirely, so no "duplicate" entry is ever written.
• C - The database is not corrupted; the rejection mechanism is a protective feature, not a failure state.
• D - Hiding a duplicate implies it was stored, which it wasn't - rejection happens before any write occurs.

Memory tip: Think of a KFF database like a bouncer at an exclusive club - if your hash is already on the list, you're turned away at the door. No entry, no mess, no drama.

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