After a series of reschedules, finally when i again tried to reschedule yesterday, it did not allowed as i was trying to reschedule within 24 hours of scheduled, that is not allowed, so finally I had to sit for VCAP-DCD exam this week and I passed it. I needed this exam passed to be eligible for VCDX path since I am already a VCAP-DCA since 2014. It was my second attempt after I failed VCAP-DCD back in middle of 2015. it was long time due but did not had courage to sit again as this is one of the hardest exam i have ever given. you get a design canvas and you have to fit lots of objects in that canvas and then connect with with various connectors and most important thing is that questions are so very trick and lots of design decisions hidden on those tricks words.
The content of certain questions are still completely disconnected from typical project realities but altogether it is now clear that exam creators want to test analytical and abstract thinking instead of checking against simple memorized content. That is the reason why I value VCAP exams so much.
It took a lot of time and a lot of effort but in the end it was worth it.