--- service: a.root-servers.net start-period: '2016-10-15T00:00:00Z' end-period: '2016-10-15T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3760337195 dns-udp-queries-received-ipv6: 357189739 dns-tcp-queries-received-ipv4: 128448708 dns-tcp-queries-received-ipv6: 6342373 dns-udp-responses-sent-ipv4: 3748076541 dns-udp-responses-sent-ipv6: 356351151 dns-tcp-responses-sent-ipv4: 128867656 dns-tcp-responses-sent-ipv6: 6291132