--- version: rssac002v3 service: j.root-servers.net start-period: '2019-01-02T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6163335340 dns-udp-queries-received-ipv6: 862650362 dns-tcp-queries-received-ipv4: 433035475 dns-tcp-queries-received-ipv6: 70347042 dns-udp-responses-sent-ipv4: 5782923646 dns-udp-responses-sent-ipv6: 818047131 dns-tcp-responses-sent-ipv4: 277480618 dns-tcp-responses-sent-ipv6: 46794710