--- version: rssac002v3 service: j.root-servers.net start-period: '2019-04-08T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7251338853 dns-udp-queries-received-ipv6: 986878096 dns-tcp-queries-received-ipv4: 504846427 dns-tcp-queries-received-ipv6: 69880038 dns-udp-responses-sent-ipv4: 6793835898 dns-udp-responses-sent-ipv6: 946379991 dns-tcp-responses-sent-ipv4: 384342804 dns-tcp-responses-sent-ipv6: 51128875