--- service: a.root-servers.net start-period: '2016-08-17T00:00:00Z' end-period: '2016-08-17T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3705439424 dns-udp-queries-received-ipv6: 514261391 dns-tcp-queries-received-ipv4: 54236307 dns-tcp-queries-received-ipv6: 5656019 dns-udp-responses-sent-ipv4: 3693229512 dns-udp-responses-sent-ipv6: 514226175 dns-tcp-responses-sent-ipv4: 52438602 dns-tcp-responses-sent-ipv6: 4065884