--- version: rssac002v3 service: a.root-servers.net start-period: '2018-03-28T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3622287609 dns-udp-queries-received-ipv6: 372575844 dns-tcp-queries-received-ipv4: 111296262 dns-tcp-queries-received-ipv6: 15753716 dns-udp-responses-sent-ipv4: 3616897988 dns-udp-responses-sent-ipv6: 372491963 dns-tcp-responses-sent-ipv4: 108289904 dns-tcp-responses-sent-ipv6: 15809651