--- version: rssac002v3 service: a.root-servers.net start-period: '2019-07-24T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6346142291 dns-udp-queries-received-ipv6: 1191137597 dns-tcp-queries-received-ipv4: 194646546 dns-tcp-queries-received-ipv6: 33142148 dns-udp-responses-sent-ipv4: 6201351059 dns-udp-responses-sent-ipv6: 1189932138 dns-tcp-responses-sent-ipv4: 189641429 dns-tcp-responses-sent-ipv6: 34072593