--- version: rssac002v3 service: a.root-servers.net start-period: '2017-07-21T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3613456524 dns-udp-queries-received-ipv6: 381463222 dns-tcp-queries-received-ipv4: 150040006 dns-tcp-queries-received-ipv6: 9505023 dns-udp-responses-sent-ipv4: 3610370587 dns-udp-responses-sent-ipv6: 381402305 dns-tcp-responses-sent-ipv4: 149826510 dns-tcp-responses-sent-ipv6: 9553437