Hi;
The answers you are not getting points for are multiple choices questions.
The answers you provided are correct but there are some other which are missing to get it all correct.
example, one of the question might have up to 4 choices to be selected to get point for it.
Good luck
Hi,
Haven’t gone through all but for one instant
Qn no.8
Ans would be flowchart,sequence,state machine
It doesn’t show you all the right answers 
So make sure to choose all the option that applies .