--- version: rssac002v3 service: j.root-servers.net start-period: '2019-02-25T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6930616870 dns-udp-queries-received-ipv6: 1150141606 dns-tcp-queries-received-ipv4: 428941558 dns-tcp-queries-received-ipv6: 159873350 dns-udp-responses-sent-ipv4: 6605900102 dns-udp-responses-sent-ipv6: 1028947697 dns-tcp-responses-sent-ipv4: 346502152 dns-tcp-responses-sent-ipv6: 97841089