--- version: rssac002v3 service: d.root-servers.net start-period: '2019-01-01T00:00:00Z' end-period: '2019-01-01T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5749808175 dns-udp-queries-received-ipv6: 1402768320 dns-tcp-queries-received-ipv4: 374406283 dns-tcp-queries-received-ipv6: 42523222 dns-udp-responses-sent-ipv4: 5749806378 dns-udp-responses-sent-ipv6: 1402608848 dns-tcp-responses-sent-ipv4: 373587718 dns-tcp-responses-sent-ipv6: 42501809