--- service: a.root-servers.net start-period: '2016-02-23T00:00:00Z' end-period: '2016-02-23T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5427843934 dns-udp-queries-received-ipv6: 335405038 dns-tcp-queries-received-ipv4: 78472659 dns-tcp-queries-received-ipv6: 3229502 dns-udp-responses-sent-ipv4: 5420344377 dns-udp-responses-sent-ipv6: 335409958 dns-tcp-responses-sent-ipv4: 67051146 dns-tcp-responses-sent-ipv6: 302006