--- service: a.root-servers.net start-period: '2016-11-16T00:00:00Z' end-period: '2016-11-16T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4805164051 dns-udp-queries-received-ipv6: 432885358 dns-tcp-queries-received-ipv4: 171740164 dns-tcp-queries-received-ipv6: 9857841 dns-udp-responses-sent-ipv4: 4789532742 dns-udp-responses-sent-ipv6: 432771723 dns-tcp-responses-sent-ipv4: 171173874 dns-tcp-responses-sent-ipv6: 9905914