--- service: a.root-servers.net start-period: '2016-06-06T00:00:00Z' end-period: '2016-06-06T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5713209088 dns-udp-queries-received-ipv6: 426452265 dns-tcp-queries-received-ipv4: 82279307 dns-tcp-queries-received-ipv6: 5513802 dns-udp-responses-sent-ipv4: 5712867209 dns-udp-responses-sent-ipv6: 426202672 dns-tcp-responses-sent-ipv4: 69703775 dns-tcp-responses-sent-ipv6: 312617