--- service: b.root-servers.net start-period: '2016-05-06T00:00:00Z' end-period: '2016-05-06T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2350968924 dns-udp-queries-received-ipv6: 217989498 dns-tcp-queries-received-ipv4: 32383628 dns-tcp-queries-received-ipv6: 481698 dns-udp-responses-sent-ipv4: 2250011383 dns-udp-responses-sent-ipv6: 217949999 dns-tcp-responses-sent-ipv4: 31711282 dns-tcp-responses-sent-ipv6: 480327