--- service: a.root-servers.net start-period: '2016-03-25T00:00:00Z' end-period: '2016-03-25T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5384040279 dns-udp-queries-received-ipv6: 352856354 dns-tcp-queries-received-ipv4: 81213143 dns-tcp-queries-received-ipv6: 2979561 dns-udp-responses-sent-ipv4: 5371844553 dns-udp-responses-sent-ipv6: 354014817 dns-tcp-responses-sent-ipv4: 64836424 dns-tcp-responses-sent-ipv6: 294028