--- service: a.root-servers.net start-period: '2014-04-02T00:00:00Z' end-period: '2014-04-02T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2446491624 dns-udp-queries-received-ipv6: 89012826 dns-tcp-queries-received-ipv4: 11732113 dns-tcp-queries-received-ipv6: 880585 dns-udp-responses-sent-ipv4: 2444658261 dns-udp-responses-sent-ipv6: 88981684 dns-tcp-responses-sent-ipv4: 11756108 dns-tcp-responses-sent-ipv6: 129