--- service: a.root-servers.net start-period: '2016-12-05T00:00:00Z' end-period: '2016-12-05T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5464258399 dns-udp-queries-received-ipv6: 475847602 dns-tcp-queries-received-ipv4: 220998935 dns-tcp-queries-received-ipv6: 8255514 dns-udp-responses-sent-ipv4: 5445662674 dns-udp-responses-sent-ipv6: 475088931 dns-tcp-responses-sent-ipv4: 222123827 dns-tcp-responses-sent-ipv6: 8328016