--- service: a.root-servers.net start-period: '2016-10-18T00:00:00Z' end-period: '2016-10-18T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4157842659 dns-udp-queries-received-ipv6: 378470339 dns-tcp-queries-received-ipv4: 137588798 dns-tcp-queries-received-ipv6: 6932124 dns-udp-responses-sent-ipv4: 4138339172 dns-udp-responses-sent-ipv6: 377571835 dns-tcp-responses-sent-ipv4: 137869803 dns-tcp-responses-sent-ipv6: 6839945