We've recently see the Canada Border Services Agency (CBSA) and Immigration, Refugees and Citizenship Canada become far more aggressive in proactively verifying and enforcing the days of residency rules against our clients, such that even though who have permanent residency card with year left prior to expiry are seeing those cards being revoked, and departure orders being issued, because of it being impossible for our clients to fulfill their residency requirements in the remaining months and years they have on the cards. 

You might be sent a days of residency questionnaire if there is any doubt over whether you've met the number of days in Canada cut off. IRCC might even demand to see proof of travel documents including airline tickets to prove the periods of when you left and returned to Canada. While Canada keeps entry records, Canada maintains no comprehensive exit records. And even entry records can be deficient. You must be very careful when filling out this questionnaire are even the smallest gap in information may be fatal. 

It is possible to appeal failures to meet the residency requirements to the Immigration Appeal Division of the Immigration and Refugee Board.