--- version: rssac002v3 service: j.root-servers.net start-period: '2019-05-07T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7496939935 dns-udp-queries-received-ipv6: 1244410975 dns-tcp-queries-received-ipv4: 658410272 dns-tcp-queries-received-ipv6: 75705068 dns-udp-responses-sent-ipv4: 6835780543 dns-udp-responses-sent-ipv6: 1199541120 dns-tcp-responses-sent-ipv4: 463446936 dns-tcp-responses-sent-ipv6: 55474213