--- version: rssac002v3 service: a.root-servers.net start-period: '2019-05-03T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5851886811 dns-udp-queries-received-ipv6: 983495713 dns-tcp-queries-received-ipv4: 205057179 dns-tcp-queries-received-ipv6: 26806097 dns-udp-responses-sent-ipv4: 5719091948 dns-udp-responses-sent-ipv6: 982961496 dns-tcp-responses-sent-ipv4: 201327595 dns-tcp-responses-sent-ipv6: 27495603