Planning for exam 70-290.

Exam 70-270 was one of the toughest and I had cleared it. Had I got more of practice questions I could have scored better.
Now planning for exam 70-290.
 
What other certifications do you have? I am looking at getting some of my own. Currently studying for my a+ then my dcse, have you taken either of those and do you have any advice?
 
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