--- service: a.root-servers.net start-period: '2016-04-26T00:00:00Z' end-period: '2016-04-26T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5572620869 dns-udp-queries-received-ipv6: 336373792 dns-tcp-queries-received-ipv4: 71962228 dns-tcp-queries-received-ipv6: 3970617 dns-udp-responses-sent-ipv4: 7379845065 dns-udp-responses-sent-ipv6: 336110623 dns-tcp-responses-sent-ipv4: 61962055 dns-tcp-responses-sent-ipv6: 865037