--- service: d.root-servers.net start-period: '2016-03-27T00:00:00Z' end-period: '2016-03-27T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4241051464 dns-udp-queries-received-ipv6: 524207631 dns-tcp-queries-received-ipv4: 40905133 dns-tcp-queries-received-ipv6: 469760 dns-udp-responses-sent-ipv4: 4222458927 dns-udp-responses-sent-ipv6: 523946021 dns-tcp-responses-sent-ipv4: 40816878 dns-tcp-responses-sent-ipv6: 469737