--- version: rssac002v3 service: d.root-servers.net start-period: '2016-12-31T00:00:00Z' end-period: '2016-12-31T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3774196595 dns-udp-queries-received-ipv6: 643811115 dns-tcp-queries-received-ipv4: 62025798 dns-tcp-queries-received-ipv6: 5964092 dns-udp-responses-sent-ipv4: 3765334632 dns-udp-responses-sent-ipv6: 643556405 dns-tcp-responses-sent-ipv4: 61891026 dns-tcp-responses-sent-ipv6: 5963944