--- service: a.root-servers.net start-period: '2017-02-05T00:00:00Z' end-period: '2017-02-05T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4418307883 dns-udp-queries-received-ipv6: 461261757 dns-tcp-queries-received-ipv4: 148545041 dns-tcp-queries-received-ipv6: 8218718 dns-udp-responses-sent-ipv4: 4412717752 dns-udp-responses-sent-ipv6: 461126944 dns-tcp-responses-sent-ipv4: 149389547 dns-tcp-responses-sent-ipv6: 8236699