When creating a dungeon, do all creatures fall into one encounter?

@ChrisPerkinsDnD when creating a dungeon, do all creatures fall into one encounter, or is it a room by room basis?

— Lutharia Silvramane (@Lutharia) August 1, 2016

Depends on the dungeon, but you don't normally encounter all of a dungeon's denizens at once. https://t.co/XhRdDiZLVr

— (((Chris Perkins))) (@ChrisPerkinsDnD) August 1, 2016