--- version: rssac002v3 service: a.root-servers.net start-period: '2020-02-01T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7060884229 dns-udp-queries-received-ipv6: 972216161 dns-tcp-queries-received-ipv4: 250588142 dns-tcp-queries-received-ipv6: 70661408 dns-udp-responses-sent-ipv4: 6870915145 dns-udp-responses-sent-ipv6: 968390194 dns-tcp-responses-sent-ipv4: 235301562 dns-tcp-responses-sent-ipv6: 70692166