--- version: rssac002v3 service: j.root-servers.net start-period: '2018-03-23T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4730556015 dns-udp-queries-received-ipv6: 392035868 dns-tcp-queries-received-ipv4: 189626560 dns-tcp-queries-received-ipv6: 16792642 dns-udp-responses-sent-ipv4: 4620130877 dns-udp-responses-sent-ipv6: 389770004 dns-tcp-responses-sent-ipv4: 158882759 dns-tcp-responses-sent-ipv6: 16766740