--- service: a.root-servers.net start-period: '2016-08-28T00:00:00Z' end-period: '2016-08-28T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3095218812 dns-udp-queries-received-ipv6: 418577184 dns-tcp-queries-received-ipv4: 50882456 dns-tcp-queries-received-ipv6: 5482187 dns-udp-responses-sent-ipv4: 3088109609 dns-udp-responses-sent-ipv6: 418508930 dns-tcp-responses-sent-ipv4: 48909508 dns-tcp-responses-sent-ipv6: 3886005