--- service: a.root-servers.net start-period: '2016-10-31T00:00:00Z' end-period: '2016-10-31T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4760279938 dns-udp-queries-received-ipv6: 449901993 dns-tcp-queries-received-ipv4: 180661340 dns-tcp-queries-received-ipv6: 8930248 dns-udp-responses-sent-ipv4: 4746021491 dns-udp-responses-sent-ipv6: 448520718 dns-tcp-responses-sent-ipv4: 181451414 dns-tcp-responses-sent-ipv6: 8507737