--- version: rssac002v3 service: d.root-servers.net start-period: '2019-05-31T00:00:00Z' end-period: '2019-05-31T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7570484366 dns-udp-queries-received-ipv6: 1843726794 dns-tcp-queries-received-ipv4: 385486105 dns-tcp-queries-received-ipv6: 75604413 dns-udp-responses-sent-ipv4: 7570380809 dns-udp-responses-sent-ipv6: 1843590800 dns-tcp-responses-sent-ipv4: 385392298 dns-tcp-responses-sent-ipv6: 75568624