--- version: rssac002v3 service: a.root-servers.net start-period: '2017-12-06T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4188648279 dns-udp-queries-received-ipv6: 425017528 dns-tcp-queries-received-ipv4: 130147000 dns-tcp-queries-received-ipv6: 12945926 dns-udp-responses-sent-ipv4: 4186262478 dns-udp-responses-sent-ipv6: 424994879 dns-tcp-responses-sent-ipv4: 130395991 dns-tcp-responses-sent-ipv6: 13067750