--- service: a.root-servers.net start-period: '2016-03-10T00:00:00Z' end-period: '2016-03-10T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4422996899 dns-udp-queries-received-ipv6: 375300360 dns-tcp-queries-received-ipv4: 30495556 dns-tcp-queries-received-ipv6: 4053459 dns-udp-responses-sent-ipv4: 4406439000 dns-udp-responses-sent-ipv6: 376096157 dns-tcp-responses-sent-ipv4: 26599191 dns-tcp-responses-sent-ipv6: 305480