--- version: rssac002v3 service: j.root-servers.net start-period: '2019-01-09T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6393790318 dns-udp-queries-received-ipv6: 858342681 dns-tcp-queries-received-ipv4: 453483772 dns-tcp-queries-received-ipv6: 70647046 dns-udp-responses-sent-ipv4: 5985348350 dns-udp-responses-sent-ipv6: 814566885 dns-tcp-responses-sent-ipv4: 291538309 dns-tcp-responses-sent-ipv6: 47461900