--- version: rssac002v3 service: j.root-servers.net start-period: '2019-09-21T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7692642177 dns-udp-queries-received-ipv6: 1674503977 dns-tcp-queries-received-ipv4: 715827077 dns-tcp-queries-received-ipv6: 250209343 dns-udp-responses-sent-ipv4: 6954946059 dns-udp-responses-sent-ipv6: 1459933116 dns-tcp-responses-sent-ipv4: 465568872 dns-tcp-responses-sent-ipv6: 145516404