--- version: rssac002v3 service: a.root-servers.net start-period: '2018-07-14T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3366231071 dns-udp-queries-received-ipv6: 426294804 dns-tcp-queries-received-ipv4: 120859398 dns-tcp-queries-received-ipv6: 17604664 dns-udp-responses-sent-ipv4: 3282001592 dns-udp-responses-sent-ipv6: 426022380 dns-tcp-responses-sent-ipv4: 118259552 dns-tcp-responses-sent-ipv6: 17615889