--- version: rssac002v3 service: d.root-servers.net start-period: '2018-06-19T00:00:00Z' end-period: '2018-06-19T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4804918117 dns-udp-queries-received-ipv6: 631613265 dns-tcp-queries-received-ipv4: 188375071 dns-tcp-queries-received-ipv6: 17593790 dns-udp-responses-sent-ipv4: 4805767165 dns-udp-responses-sent-ipv6: 631398466 dns-tcp-responses-sent-ipv4: 188334626 dns-tcp-responses-sent-ipv6: 17588933