Had only one round of interview where they asked questions about my experience and about things mentioned in my resume, General Servicenow questions ,Java script, integrations and service catalog. I would say, it was neither difficult nor easy, just be prepared to answer questions about your own experience.

there is an L1 rounds where they ask basics of servicenow by checking your resume and later if u clear it u will be eligible for L2 rounds where they have asked scripting questions and integration process