--- version: rssac002v3 service: a.root-servers.net start-period: '2018-04-24T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4147382384 dns-udp-queries-received-ipv6: 452299053 dns-tcp-queries-received-ipv4: 103010476 dns-tcp-queries-received-ipv6: 14500096 dns-udp-responses-sent-ipv4: 4091282518 dns-udp-responses-sent-ipv6: 451907105 dns-tcp-responses-sent-ipv4: 102228976 dns-tcp-responses-sent-ipv6: 14541396