About the relevance of difficulty rating of questions and current rating

My concern is in starters we can see questions of rating around 2800 in division 2 (1600-2000) so like is this expected for guys with rating of 2000 can solve ques of 2800.
Or in another way I want to ask the high level relevance between rating of contestant and the difficulty level of questions that mostly he/she can solve.
From what I think if someone is 2000 he can solve questions maybe up to 2400 in contest.