--- version: rssac002v3 service: j.root-servers.net start-period: '2019-04-10T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7752696640 dns-udp-queries-received-ipv6: 1079204850 dns-tcp-queries-received-ipv4: 559764571 dns-tcp-queries-received-ipv6: 75710436 dns-udp-responses-sent-ipv4: 7237968851 dns-udp-responses-sent-ipv6: 1033075420 dns-tcp-responses-sent-ipv4: 415155772 dns-tcp-responses-sent-ipv6: 54767675