urgent advice needed. thanks

[usa50]

Seniors/friends., please help in this weird moment.

 

Question 1: Will it be problem if ds 160 last name is not matching exactly with passport surname field ? my passport is showing last name : ABC AKA XYZ. Can I enter only ABC in the ds-160 last name field ?

 

Question 2 : Also I have couple of mistake in the ds-160. unfortunately i realized at last moments.  I have completed the OFC - finger printing. As per process, i cannot reschedule. if I chose "No-show", will it affect my visa chances ?

 

Thanks a lot for your help and advise. I am very much nervous.