--- version: rssac002v3 service: j.root-servers.net start-period: '2018-01-04T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4486451583 dns-udp-queries-received-ipv6: 390872842 dns-tcp-queries-received-ipv4: 165046345 dns-tcp-queries-received-ipv6: 13320848 dns-udp-responses-sent-ipv4: 4410230835 dns-udp-responses-sent-ipv6: 388760449 dns-tcp-responses-sent-ipv4: 147351767 dns-tcp-responses-sent-ipv6: 13559928