--- version: rssac002v3 service: j.root-servers.net start-period: '2018-12-25T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6192692577 dns-udp-queries-received-ipv6: 772199856 dns-tcp-queries-received-ipv4: 423678883 dns-tcp-queries-received-ipv6: 63970571 dns-udp-responses-sent-ipv4: 5723855792 dns-udp-responses-sent-ipv6: 731427457 dns-tcp-responses-sent-ipv4: 267064054 dns-tcp-responses-sent-ipv6: 44713059