--- service: a.root-servers.net start-period: '2016-07-05T00:00:00Z' end-period: '2016-07-05T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4411574802 dns-udp-queries-received-ipv6: 432066753 dns-tcp-queries-received-ipv4: 77182331 dns-tcp-queries-received-ipv6: 6876379 dns-udp-responses-sent-ipv4: 4411274636 dns-udp-responses-sent-ipv6: 432081489 dns-tcp-responses-sent-ipv4: 64337736 dns-tcp-responses-sent-ipv6: 317200