--- version: rssac002v3 service: j.root-servers.net start-period: '2019-12-15T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 8549759945 dns-udp-queries-received-ipv6: 1216260548 dns-tcp-queries-received-ipv4: 667982854 dns-tcp-queries-received-ipv6: 118301163 dns-udp-responses-sent-ipv4: 7776344307 dns-udp-responses-sent-ipv6: 1175877673 dns-tcp-responses-sent-ipv4: 468063243 dns-tcp-responses-sent-ipv6: 100902639