CDL (Configuration Deviation List) differs from MEL in that it covers:

Cockpit instrument deviations

Communication equipment deviations

Missing or damaged external parts of the aircraft

Correct

Performance deviations

Explanation

The CDL covers the dispatch of aircraft with missing non-essential external parts (fairings, panels, etc.), with associated performance penalties.

Test yourself with random questions from Operational Procedures and all other ATPL subjects.