--- version: rssac002v3 service: a.root-servers.net start-period: '2018-09-02T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3579531097 dns-udp-queries-received-ipv6: 542067274 dns-tcp-queries-received-ipv4: 106548825 dns-tcp-queries-received-ipv6: 19364295 dns-udp-responses-sent-ipv4: 3494418456 dns-udp-responses-sent-ipv6: 541750785 dns-tcp-responses-sent-ipv4: 103255045 dns-tcp-responses-sent-ipv6: 19377587