--- version: rssac002v3 service: a.root-servers.net start-period: '2020-04-06T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 8634675718 dns-udp-queries-received-ipv6: 1480470235 dns-tcp-queries-received-ipv4: 325896829 dns-tcp-queries-received-ipv6: 118138998 dns-udp-responses-sent-ipv4: 8393971503 dns-udp-responses-sent-ipv6: 1475426241 dns-tcp-responses-sent-ipv4: 321695640 dns-tcp-responses-sent-ipv6: 118231475