--- service: a.root-servers.net start-period: '2016-11-17T00:00:00Z' end-period: '2016-11-17T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4554809253 dns-udp-queries-received-ipv6: 422374290 dns-tcp-queries-received-ipv4: 169367454 dns-tcp-queries-received-ipv6: 8755614 dns-udp-responses-sent-ipv4: 4539840697 dns-udp-responses-sent-ipv6: 422210936 dns-tcp-responses-sent-ipv4: 169862058 dns-tcp-responses-sent-ipv6: 8748308