--- service: a.root-servers.net start-period: '2016-04-24T00:00:00Z' end-period: '2016-04-24T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4674036984 dns-udp-queries-received-ipv6: 315578468 dns-tcp-queries-received-ipv4: 71061871 dns-tcp-queries-received-ipv6: 3164855 dns-udp-responses-sent-ipv4: 6675414149 dns-udp-responses-sent-ipv6: 315246447 dns-tcp-responses-sent-ipv4: 60398716 dns-tcp-responses-sent-ipv6: 305127