--- version: rssac002v3 service: a.root-servers.net start-period: '2018-01-13T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3807257806 dns-udp-queries-received-ipv6: 396692553 dns-tcp-queries-received-ipv4: 90191199 dns-tcp-queries-received-ipv6: 12916752 dns-udp-responses-sent-ipv4: 3804855865 dns-udp-responses-sent-ipv6: 396668642 dns-tcp-responses-sent-ipv4: 90469058 dns-tcp-responses-sent-ipv6: 13031356