--- version: rssac002v3 service: d.root-servers.net start-period: '2018-07-21T00:00:00Z' end-period: '2018-07-21T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4446068486 dns-udp-queries-received-ipv6: 629415404 dns-tcp-queries-received-ipv4: 168488978 dns-tcp-queries-received-ipv6: 17958284 dns-udp-responses-sent-ipv4: 4446062828 dns-udp-responses-sent-ipv6: 629170712 dns-tcp-responses-sent-ipv4: 168471464 dns-tcp-responses-sent-ipv6: 17955196