--- service: a.root-servers.net start-period: '2016-05-03T00:00:00Z' end-period: '2016-05-03T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5423536992 dns-udp-queries-received-ipv6: 351417856 dns-tcp-queries-received-ipv4: 73695173 dns-tcp-queries-received-ipv6: 3716517 dns-udp-responses-sent-ipv4: 5419472684 dns-udp-responses-sent-ipv6: 351141990 dns-tcp-responses-sent-ipv4: 62739896 dns-tcp-responses-sent-ipv6: 302749