My career took a flight after this

I was not making any progress in my career. I had been trying for promotion but it did not work at all. Someone suggested to take the 300-550 certificate exam. But i was a little skeptical, frankly speaking. Firstly, i did not know how a certificate will add value to my career. And secondly, how will i study for the same with no time left. However, opting for NPDESI online practice tests helped me a lot. They are much easier way to study as opposed to mugging up of syllabus. I have cleared the exam with 90% and have been receiving opportunities through the knowledge that i gained from the certificate syllabus.