--- service: a.root-servers.net start-period: '2016-09-14T00:00:00Z' end-period: '2016-09-14T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5122956354 dns-udp-queries-received-ipv6: 527826485 dns-tcp-queries-received-ipv4: 121316042 dns-tcp-queries-received-ipv6: 6321563 dns-udp-responses-sent-ipv4: 5116499350 dns-udp-responses-sent-ipv6: 527754954 dns-tcp-responses-sent-ipv4: 115490542 dns-tcp-responses-sent-ipv6: 4559370