--- version: rssac002v3 service: a.root-servers.net start-period: '2020-04-17T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 8900196858 dns-udp-queries-received-ipv6: 1665337608 dns-tcp-queries-received-ipv4: 313712437 dns-tcp-queries-received-ipv6: 157704062 dns-udp-responses-sent-ipv4: 8636528338 dns-udp-responses-sent-ipv6: 1625426108 dns-tcp-responses-sent-ipv4: 308625349 dns-tcp-responses-sent-ipv6: 152795603