--- version: rssac002v3 service: j.root-servers.net start-period: '2019-03-03T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6393424374 dns-udp-queries-received-ipv6: 1106600029 dns-tcp-queries-received-ipv4: 313029453 dns-tcp-queries-received-ipv6: 163519190 dns-udp-responses-sent-ipv4: 6135750020 dns-udp-responses-sent-ipv6: 984235194 dns-tcp-responses-sent-ipv4: 281671583 dns-tcp-responses-sent-ipv6: 101598702