一度に => all at once N3
的 => about (change noun into na-adjective or adverb) N3
のを知っていますか => Do you know...? N4
かも[知「し」]れない => Might A, maybe A, perhaps A N3
Sentence Endings
といったところだ => Display an amount/level/degree A (程度) N1
Degree/ Level/Amount