--- version: rssac002v3 service: a.root-servers.net start-period: '2019-11-18T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6207632585 dns-udp-queries-received-ipv6: 1360143519 dns-tcp-queries-received-ipv4: 227724672 dns-tcp-queries-received-ipv6: 75041328 dns-udp-responses-sent-ipv4: 6036953691 dns-udp-responses-sent-ipv6: 1359086379 dns-tcp-responses-sent-ipv4: 226214644 dns-tcp-responses-sent-ipv6: 75340549