--- version: rssac002v3 service: j.root-servers.net start-period: '2019-03-01T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6696854528 dns-udp-queries-received-ipv6: 1146499769 dns-tcp-queries-received-ipv4: 317101712 dns-tcp-queries-received-ipv6: 169417843 dns-udp-responses-sent-ipv4: 6403576528 dns-udp-responses-sent-ipv6: 1017785767 dns-tcp-responses-sent-ipv4: 281122192 dns-tcp-responses-sent-ipv6: 104118146