--- version: rssac002v3 service: j.root-servers.net start-period: '2019-09-04T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7523686487 dns-udp-queries-received-ipv6: 1613825648 dns-tcp-queries-received-ipv4: 534681002 dns-tcp-queries-received-ipv6: 219514709 dns-udp-responses-sent-ipv4: 7042835745 dns-udp-responses-sent-ipv6: 1426303227 dns-tcp-responses-sent-ipv4: 407108442 dns-tcp-responses-sent-ipv6: 127669934