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 500-430 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 Cisco CAPI 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 and have been receiving opportunities through the knowledge that i gained from the certificate syllabus.