--- service: a.root-servers.net start-period: '2016-10-16T00:00:00Z' end-period: '2016-10-16T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3823270497 dns-udp-queries-received-ipv6: 356178700 dns-tcp-queries-received-ipv4: 130944272 dns-tcp-queries-received-ipv6: 6035284 dns-udp-responses-sent-ipv4: 3803876297 dns-udp-responses-sent-ipv6: 356015270 dns-tcp-responses-sent-ipv4: 131252604 dns-tcp-responses-sent-ipv6: 6060967