--- service: a.root-servers.net start-period: '2016-06-24T00:00:00Z' end-period: '2016-06-24T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4273656336 dns-udp-queries-received-ipv6: 387802722 dns-tcp-queries-received-ipv4: 65602875 dns-tcp-queries-received-ipv6: 8357437 dns-udp-responses-sent-ipv4: 4273335236 dns-udp-responses-sent-ipv6: 387810930 dns-tcp-responses-sent-ipv4: 53814585 dns-tcp-responses-sent-ipv6: 2343271