--- version: rssac002v3 service: d.root-servers.net start-period: '2017-12-19T00:00:00Z' end-period: '2017-12-19T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5009737619 dns-udp-queries-received-ipv6: 550694026 dns-tcp-queries-received-ipv4: 88176496 dns-tcp-queries-received-ipv6: 12277891 dns-udp-responses-sent-ipv4: 5007845022 dns-udp-responses-sent-ipv6: 550512818 dns-tcp-responses-sent-ipv4: 88132265 dns-tcp-responses-sent-ipv6: 12276608