--- service: a.root-servers.net start-period: '2016-06-15T00:00:00Z' end-period: '2016-06-15T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 10699096689 dns-udp-queries-received-ipv6: 427378147 dns-tcp-queries-received-ipv4: 81779404 dns-tcp-queries-received-ipv6: 5801425 dns-udp-responses-sent-ipv4: 7204277215 dns-udp-responses-sent-ipv6: 427086734 dns-tcp-responses-sent-ipv4: 69316006 dns-tcp-responses-sent-ipv6: 328048