--- service: a.root-servers.net start-period: '2016-05-08T00:00:00Z' end-period: '2016-05-08T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3182376507 dns-udp-queries-received-ipv6: 312437209 dns-tcp-queries-received-ipv4: 32270598 dns-tcp-queries-received-ipv6: 6513588 dns-udp-responses-sent-ipv4: 3181775358 dns-udp-responses-sent-ipv6: 311521184 dns-tcp-responses-sent-ipv4: 26609093 dns-tcp-responses-sent-ipv6: 2614523