--- version: rssac002v3 service: j.root-servers.net start-period: '2019-07-04T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7571872782 dns-udp-queries-received-ipv6: 1279618117 dns-tcp-queries-received-ipv4: 479424460 dns-tcp-queries-received-ipv6: 105205814 dns-udp-responses-sent-ipv4: 7126285592 dns-udp-responses-sent-ipv6: 1207446960 dns-tcp-responses-sent-ipv4: 355577837 dns-tcp-responses-sent-ipv6: 70656382