--- service: a.root-servers.net start-period: '2015-10-22T00:00:00Z' end-period: '2015-10-22T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3588883911 dns-udp-queries-received-ipv6: 304776262 dns-tcp-queries-received-ipv4: 22496935 dns-tcp-queries-received-ipv6: 5837273 dns-udp-responses-sent-ipv4: 3604592265 dns-udp-responses-sent-ipv6: 304185859 dns-tcp-responses-sent-ipv4: 19674624 dns-tcp-responses-sent-ipv6: 3127890