Where is a squall line to be expected?

Question

Question ATPL - Airline Transport Pilot license - Meteorology

QuizVDS · Accepted Answer

In front of an active cold front.

QuizVDS · Answer

Behind a cold front.

QuizVDS · Answer

At the surface position of a warm front.

QuizVDS · Answer

Ahead of a cold occlusion at higher levels.

Id 549 - ATPL - Where is a squall line to be expected?