--- version: rssac002v3 service: a.root-servers.net start-period: '2020-02-07T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7592290931 dns-udp-queries-received-ipv6: 1020488035 dns-tcp-queries-received-ipv4: 305940154 dns-tcp-queries-received-ipv6: 75345744 dns-udp-responses-sent-ipv4: 7383757390 dns-udp-responses-sent-ipv6: 1018367490 dns-tcp-responses-sent-ipv4: 292689780 dns-tcp-responses-sent-ipv6: 75405505