--- service: a.root-servers.net start-period: '2015-05-10T00:00:00Z' end-period: '2015-05-10T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2426290188 dns-udp-queries-received-ipv6: 201870328 dns-tcp-queries-received-ipv4: 25754032 dns-tcp-queries-received-ipv6: 1855283 dns-udp-responses-sent-ipv4: 2374475573 dns-udp-responses-sent-ipv6: 206910149 dns-tcp-responses-sent-ipv4: 21193271 dns-tcp-responses-sent-ipv6: 962899