--- version: rssac002v3 service: a.root-servers.net start-period: '2017-12-08T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3824117937 dns-udp-queries-received-ipv6: 393136387 dns-tcp-queries-received-ipv4: 120047572 dns-tcp-queries-received-ipv6: 12930234 dns-udp-responses-sent-ipv4: 3821613179 dns-udp-responses-sent-ipv6: 393131460 dns-tcp-responses-sent-ipv4: 120301829 dns-tcp-responses-sent-ipv6: 13063130