--- service: a.root-servers.net start-period: '2017-02-02T00:00:00Z' end-period: '2017-02-02T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4584472624 dns-udp-queries-received-ipv6: 502760571 dns-tcp-queries-received-ipv4: 140431624 dns-tcp-queries-received-ipv6: 8734744 dns-udp-responses-sent-ipv4: 4579429210 dns-udp-responses-sent-ipv6: 502604894 dns-tcp-responses-sent-ipv4: 140977959 dns-tcp-responses-sent-ipv6: 8744394