--- version: rssac002v3 service: j.root-servers.net start-period: '2019-02-19T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6849341343 dns-udp-queries-received-ipv6: 800256893 dns-tcp-queries-received-ipv4: 442147962 dns-tcp-queries-received-ipv6: 42903980 dns-udp-responses-sent-ipv4: 6429815460 dns-udp-responses-sent-ipv6: 796608827 dns-tcp-responses-sent-ipv4: 343597914 dns-tcp-responses-sent-ipv6: 39629197