It would depends if the output had pull up or down down resistors , if they didn't have any pull up or pull down resistorsThink about it. What is the logic level at the moment power is applied or disconnected?
It could be any state , a logic low or a logic high
Yes it has thiswell designed logic controls have a power on reset function which inhibits any signal changes taking place for a fixed period to allow logic states to stabilise on power on.
But the CD4017, is a timer , so when you turned the power ON, the output of the CD4017 was outputing a Logic High state for 60seconds