--- version: rssac002v3 service: a.root-servers.net start-period: '2018-06-05T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6960792510 dns-udp-queries-received-ipv6: 403539288 dns-tcp-queries-received-ipv4: 97985470 dns-tcp-queries-received-ipv6: 14122003 dns-udp-responses-sent-ipv4: 6855809708 dns-udp-responses-sent-ipv6: 403054844 dns-tcp-responses-sent-ipv4: 95818137 dns-tcp-responses-sent-ipv6: 14142387