--- version: rssac002v3 service: j.root-servers.net start-period: '2019-07-07T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6889863434 dns-udp-queries-received-ipv6: 1196588256 dns-tcp-queries-received-ipv4: 453396972 dns-tcp-queries-received-ipv6: 103082691 dns-udp-responses-sent-ipv4: 6544042632 dns-udp-responses-sent-ipv6: 1125895568 dns-tcp-responses-sent-ipv4: 341857488 dns-tcp-responses-sent-ipv6: 69137597