--- service: a.root-servers.net start-period: '2016-06-11T00:00:00Z' end-period: '2016-06-11T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5221526961 dns-udp-queries-received-ipv6: 383850949 dns-tcp-queries-received-ipv4: 79293327 dns-tcp-queries-received-ipv6: 5309158 dns-udp-responses-sent-ipv4: 5220912930 dns-udp-responses-sent-ipv6: 383519930 dns-tcp-responses-sent-ipv4: 67443199 dns-tcp-responses-sent-ipv6: 333732