--- service: a.root-servers.net start-period: '2016-10-23T00:00:00Z' end-period: '2016-10-23T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4452307348 dns-udp-queries-received-ipv6: 391736910 dns-tcp-queries-received-ipv4: 133663107 dns-tcp-queries-received-ipv6: 7835955 dns-udp-responses-sent-ipv4: 4430826760 dns-udp-responses-sent-ipv6: 391109066 dns-tcp-responses-sent-ipv4: 134622195 dns-tcp-responses-sent-ipv6: 7814253