--- version: rssac002v3 service: j.root-servers.net start-period: '2019-04-06T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6778923953 dns-udp-queries-received-ipv6: 975498143 dns-tcp-queries-received-ipv4: 509544462 dns-tcp-queries-received-ipv6: 73418998 dns-udp-responses-sent-ipv4: 6351293587 dns-udp-responses-sent-ipv6: 933238039 dns-tcp-responses-sent-ipv4: 385565648 dns-tcp-responses-sent-ipv6: 53976100