--- service: a.root-servers.net start-period: '2016-08-11T00:00:00Z' end-period: '2016-08-11T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3526050318 dns-udp-queries-received-ipv6: 477558382 dns-tcp-queries-received-ipv4: 48815787 dns-tcp-queries-received-ipv6: 5759048 dns-udp-responses-sent-ipv4: 3524237596 dns-udp-responses-sent-ipv6: 477533345 dns-tcp-responses-sent-ipv4: 47782135 dns-tcp-responses-sent-ipv6: 4081238