--- service: d.root-servers.net start-period: '2015-10-29T00:00:00Z' end-period: '2015-10-29T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3448303957 dns-udp-queries-received-ipv6: 432491589 dns-tcp-queries-received-ipv4: 18418650 dns-tcp-queries-received-ipv6: 599948 dns-udp-responses-sent-ipv4: 3436406383 dns-udp-responses-sent-ipv6: 432123552 dns-tcp-responses-sent-ipv4: 18368958 dns-tcp-responses-sent-ipv6: 599598