What is the CIS all about and on which topics should I need to concentrate More .

Now I am working in MNC and my ServiceNow Account also linked with my company Email and password . I done some certification with this account . So problem is when I am going to leave this company how could I get  these certification for my use (In r...

I am about deploy in ServiceNow based project that project requires to complete the CAD exam . Any tips for completing the CAD exam and what topics should I focus More .Thank You  

What is the use of this ServiceNow community and how exactly should help in my learning . One more thing is  there any  rewards would I get if I am be in active in this community. The reason is I am new to this community .Thank you .