--- version: rssac002v3 service: d.root-servers.net start-period: '2018-12-20T00:00:00Z' end-period: '2018-12-20T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6260348492 dns-udp-queries-received-ipv6: 1432838520 dns-tcp-queries-received-ipv4: 390038064 dns-tcp-queries-received-ipv6: 41054564 dns-udp-responses-sent-ipv4: 6260363351 dns-udp-responses-sent-ipv6: 1432703706 dns-tcp-responses-sent-ipv4: 389729098 dns-tcp-responses-sent-ipv6: 41030534