--- version: rssac002v3 service: a.root-servers.net start-period: '2020-12-08T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7939609832 dns-udp-queries-received-ipv6: 1578665472 dns-tcp-queries-received-ipv4: 331032416 dns-tcp-queries-received-ipv6: 106054732 dns-udp-responses-sent-ipv4: 7725956686 dns-udp-responses-sent-ipv6: 1577176867 dns-tcp-responses-sent-ipv4: 322703019 dns-tcp-responses-sent-ipv6: 106564207