Data cloud company Snowflake adds former NBCUniversal CEO Steve Burke to its board; former BMC Software executive John McMahon leaves Snowflake board, effective after July 5 annual meeting ... Digital supply chain specialist Zero100 adds Andrea Albright, Walmart executive vice president-sourcing, to its advisory board ... Acalvio, cyber deception technology company, adds former CIA Chief Operating Officer Andrew Makridis to its federal advisory board ... Xsolla, videogame commerce company, names Chris Hewish ex-SkyDance, interim CEO ... Videoquant, social video content creation startup, adds Tripadvisor co-founder and former CEO Steve Kaufer to its advisory team.