--- version: rssac002v3 service: a.root-servers.net start-period: '2018-07-23T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4011012849 dns-udp-queries-received-ipv6: 461973783 dns-tcp-queries-received-ipv4: 126582401 dns-tcp-queries-received-ipv6: 19041655 dns-udp-responses-sent-ipv4: 3916735199 dns-udp-responses-sent-ipv6: 461421287 dns-tcp-responses-sent-ipv4: 121761423 dns-tcp-responses-sent-ipv6: 19060686