--- version: rssac002v3 service: a.root-servers.net start-period: '2018-02-26T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4015528769 dns-udp-queries-received-ipv6: 377345479 dns-tcp-queries-received-ipv4: 162400338 dns-tcp-queries-received-ipv6: 15350528 dns-udp-responses-sent-ipv4: 4011852290 dns-udp-responses-sent-ipv6: 377204119 dns-tcp-responses-sent-ipv4: 162384327 dns-tcp-responses-sent-ipv6: 15463816