--- version: rssac002v3 service: d.root-servers.net start-period: '2018-12-27T00:00:00Z' end-period: '2018-12-27T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6174603899 dns-udp-queries-received-ipv6: 1443262507 dns-tcp-queries-received-ipv4: 382150889 dns-tcp-queries-received-ipv6: 45049613 dns-udp-responses-sent-ipv4: 6174599951 dns-udp-responses-sent-ipv6: 1443099260 dns-tcp-responses-sent-ipv4: 381865268 dns-tcp-responses-sent-ipv6: 45024197