--- service: a.root-servers.net start-period: '2016-08-16T00:00:00Z' end-period: '2016-08-16T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3685670920 dns-udp-queries-received-ipv6: 510315896 dns-tcp-queries-received-ipv4: 54068013 dns-tcp-queries-received-ipv6: 5541336 dns-udp-responses-sent-ipv4: 3674578069 dns-udp-responses-sent-ipv6: 510353243 dns-tcp-responses-sent-ipv4: 52160088 dns-tcp-responses-sent-ipv6: 3884567