--- version: rssac002v3 service: a.root-servers.net start-period: '2018-06-25T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4087897470 dns-udp-queries-received-ipv6: 423701442 dns-tcp-queries-received-ipv4: 130036153 dns-tcp-queries-received-ipv6: 17837558 dns-udp-responses-sent-ipv4: 3931718293 dns-udp-responses-sent-ipv6: 422745339 dns-tcp-responses-sent-ipv4: 127445369 dns-tcp-responses-sent-ipv6: 17916333