--- version: rssac002v3 service: j.root-servers.net start-period: '2019-04-27T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7342048597 dns-udp-queries-received-ipv6: 1215096547 dns-tcp-queries-received-ipv4: 662317517 dns-tcp-queries-received-ipv6: 73726959 dns-udp-responses-sent-ipv4: 6740810754 dns-udp-responses-sent-ipv6: 1170009130 dns-tcp-responses-sent-ipv4: 470310245 dns-tcp-responses-sent-ipv6: 53072526