--- version: rssac002v3 service: j.root-servers.net start-period: '2019-03-02T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6418541722 dns-udp-queries-received-ipv6: 1112744194 dns-tcp-queries-received-ipv4: 315826490 dns-tcp-queries-received-ipv6: 163441269 dns-udp-responses-sent-ipv4: 6148203622 dns-udp-responses-sent-ipv6: 989369779 dns-tcp-responses-sent-ipv4: 285161861 dns-tcp-responses-sent-ipv6: 100830309