--- version: rssac002v3 service: a.root-servers.net start-period: '2020-12-05T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7966593789 dns-udp-queries-received-ipv6: 1331316718 dns-tcp-queries-received-ipv4: 280268385 dns-tcp-queries-received-ipv6: 96729988 dns-udp-responses-sent-ipv4: 7652280068 dns-udp-responses-sent-ipv6: 1329838609 dns-tcp-responses-sent-ipv4: 271086302 dns-tcp-responses-sent-ipv6: 97531351