--- version: rssac002v3 service: j.root-servers.net start-period: '2019-06-01T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7547569998 dns-udp-queries-received-ipv6: 1273731549 dns-tcp-queries-received-ipv4: 767346735 dns-tcp-queries-received-ipv6: 75112737 dns-udp-responses-sent-ipv4: 6874794473 dns-udp-responses-sent-ipv6: 1229935819 dns-tcp-responses-sent-ipv4: 543454313 dns-tcp-responses-sent-ipv6: 54397770