--- version: rssac002v3 service: a.root-servers.net start-period: '2020-02-06T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7734693037 dns-udp-queries-received-ipv6: 1053699557 dns-tcp-queries-received-ipv4: 286641945 dns-tcp-queries-received-ipv6: 73593811 dns-udp-responses-sent-ipv4: 7521437153 dns-udp-responses-sent-ipv6: 1051038749 dns-tcp-responses-sent-ipv4: 271570201 dns-tcp-responses-sent-ipv6: 73656890