--- version: rssac002v3 service: a.root-servers.net start-period: '2018-06-10T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6906792987 dns-udp-queries-received-ipv6: 395222720 dns-tcp-queries-received-ipv4: 137952859 dns-tcp-queries-received-ipv6: 15869997 dns-udp-responses-sent-ipv4: 6799312345 dns-udp-responses-sent-ipv6: 394954520 dns-tcp-responses-sent-ipv4: 141736850 dns-tcp-responses-sent-ipv6: 15900103