--- version: rssac002v3 service: a.root-servers.net start-period: '2019-12-08T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5784732963 dns-udp-queries-received-ipv6: 1064375459 dns-tcp-queries-received-ipv4: 242726347 dns-tcp-queries-received-ipv6: 66333674 dns-udp-responses-sent-ipv4: 5574878371 dns-udp-responses-sent-ipv6: 1028498543 dns-tcp-responses-sent-ipv4: 239970493 dns-tcp-responses-sent-ipv6: 66150004