--- version: rssac002v3 service: a.root-servers.net start-period: '2020-05-02T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7531476905 dns-udp-queries-received-ipv6: 1353154004 dns-tcp-queries-received-ipv4: 362877052 dns-tcp-queries-received-ipv6: 129634433 dns-udp-responses-sent-ipv4: 7311122821 dns-udp-responses-sent-ipv6: 1349304341 dns-tcp-responses-sent-ipv4: 357120686 dns-tcp-responses-sent-ipv6: 129819631