Got an e-mail from the HR saying an engineer liked my resume and asked for an updated copy of it following which I had an unexpected phone interview the same day. I have a CWNA certification so most of it was based off that. After a week I got to know I would be having an onsite, however, the onsite was scheduled a month later. There were 4 rounds, everything relevant from my resume was asked. Everything about 802.11a/b/g/n/ac, networking protocols, routing protocols, some WLAN troubleshooting scenarios, OFDM, BeamForming (all the 802.11n related concepts),WLAN security, my work during the year long internship i had, Protocol analyzers, how they work, some practical scenarios related to them etc. Marvell is extremely slow (to the point that the wait gets frustrating) when it comes to scheduling further rounds or extending an offer. So good luck with that :) Know your resume very well.