--- version: rssac002v3 service: j.root-servers.net start-period: '2019-04-30T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7865811132 dns-udp-queries-received-ipv6: 1269904764 dns-tcp-queries-received-ipv4: 669528007 dns-tcp-queries-received-ipv6: 74613790 dns-udp-responses-sent-ipv4: 7189778389 dns-udp-responses-sent-ipv6: 1224544407 dns-tcp-responses-sent-ipv4: 475538191 dns-tcp-responses-sent-ipv6: 54006491