--- service: d.root-servers.net start-period: '2016-02-14T00:00:00Z' end-period: '2016-02-14T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3936791251 dns-udp-queries-received-ipv6: 407640372 dns-tcp-queries-received-ipv4: 20233599 dns-tcp-queries-received-ipv6: 555614 dns-udp-responses-sent-ipv4: 3927214823 dns-udp-responses-sent-ipv6: 407396559 dns-tcp-responses-sent-ipv4: 20168253 dns-tcp-responses-sent-ipv6: 555355