--- service: d.root-servers.net start-period: '2016-02-25T00:00:00Z' end-period: '2016-02-25T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4481029221 dns-udp-queries-received-ipv6: 519864941 dns-tcp-queries-received-ipv4: 25851202 dns-tcp-queries-received-ipv6: 1085764 dns-udp-responses-sent-ipv4: 4459946875 dns-udp-responses-sent-ipv6: 519536445 dns-tcp-responses-sent-ipv4: 25834096 dns-tcp-responses-sent-ipv6: 1085718