--- service: a.root-servers.net start-period: '2016-05-24T00:00:00Z' end-period: '2016-05-24T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6970249755 dns-udp-queries-received-ipv6: 455521391 dns-tcp-queries-received-ipv4: 90517109 dns-tcp-queries-received-ipv6: 6293748 dns-udp-responses-sent-ipv4: 6970087496 dns-udp-responses-sent-ipv6: 455376511 dns-tcp-responses-sent-ipv4: 76630844 dns-tcp-responses-sent-ipv6: 304614