--- version: rssac002v3 service: j.root-servers.net start-period: '2018-01-08T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4462033520 dns-udp-queries-received-ipv6: 388386456 dns-tcp-queries-received-ipv4: 152505888 dns-tcp-queries-received-ipv6: 13391856 dns-udp-responses-sent-ipv4: 4376280601 dns-udp-responses-sent-ipv6: 385912694 dns-tcp-responses-sent-ipv4: 129729524 dns-tcp-responses-sent-ipv6: 13564637