--- service: a.root-servers.net start-period: '2016-02-05T00:00:00Z' end-period: '2016-02-05T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4443659388 dns-udp-queries-received-ipv6: 308726943 dns-tcp-queries-received-ipv4: 51466408 dns-tcp-queries-received-ipv6: 1904222 dns-udp-responses-sent-ipv4: 4433188025 dns-udp-responses-sent-ipv6: 310761509 dns-tcp-responses-sent-ipv4: 44066895 dns-tcp-responses-sent-ipv6: 250919