--- service: i.root-servers.net start-period: '2014-04-01T00:00:00Z' end-period: '2014-04-01T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3011629715 dns-udp-queries-received-ipv6: 188393913 dns-tcp-queries-received-ipv4: 6518772 dns-tcp-queries-received-ipv6: 293651 dns-udp-responses-sent-ipv4: 2949102208 dns-udp-responses-sent-ipv6: 188875480 dns-tcp-responses-sent-ipv4: 6462611 dns-tcp-responses-sent-ipv6: 295093