--- service: a.root-servers.net start-period: '2014-07-01T00:00:00Z' end-period: '2014-07-01T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2113420053 dns-udp-queries-received-ipv6: 121276112 dns-tcp-queries-received-ipv4: 13566589 dns-tcp-queries-received-ipv6: 817527 dns-udp-responses-sent-ipv4: 2113280620 dns-udp-responses-sent-ipv6: 121275277 dns-tcp-responses-sent-ipv4: 13591318 dns-tcp-responses-sent-ipv6: 499674