--- service: a.root-servers.net start-period: '2016-03-02T00:00:00Z' end-period: '2016-03-02T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4098252011 dns-udp-queries-received-ipv6: 350346470 dns-tcp-queries-received-ipv4: 31256527 dns-tcp-queries-received-ipv6: 3203871 dns-udp-responses-sent-ipv4: 4078621687 dns-udp-responses-sent-ipv6: 352658817 dns-tcp-responses-sent-ipv4: 25892175 dns-tcp-responses-sent-ipv6: 274845