--- service: a.root-servers.net start-period: '2016-02-06T00:00:00Z' end-period: '2016-02-06T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3620224498 dns-udp-queries-received-ipv6: 214922729 dns-tcp-queries-received-ipv4: 46195979 dns-tcp-queries-received-ipv6: 1153180 dns-udp-responses-sent-ipv4: 3612644053 dns-udp-responses-sent-ipv6: 215095073 dns-tcp-responses-sent-ipv4: 39619455 dns-tcp-responses-sent-ipv6: 183742