--- service: a.root-servers.net start-period: '2016-08-04T00:00:00Z' end-period: '2016-08-04T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2778055466 dns-udp-queries-received-ipv6: 338552177 dns-tcp-queries-received-ipv4: 66068962 dns-tcp-queries-received-ipv6: 5736835 dns-udp-responses-sent-ipv4: 2777050574 dns-udp-responses-sent-ipv6: 338503420 dns-tcp-responses-sent-ipv4: 59644738 dns-tcp-responses-sent-ipv6: 3980357