--- version: rssac002v3 service: a.root-servers.net start-period: '2018-07-03T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3957835767 dns-udp-queries-received-ipv6: 477090957 dns-tcp-queries-received-ipv4: 128584761 dns-tcp-queries-received-ipv6: 18623100 dns-udp-responses-sent-ipv4: 3810418828 dns-udp-responses-sent-ipv6: 476659763 dns-tcp-responses-sent-ipv4: 126014822 dns-tcp-responses-sent-ipv6: 18679242