--- service: j.root-servers.net start-period: '2016-09-21T00:00:00Z' end-period: '2016-09-21T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6340411788 dns-udp-queries-received-ipv6: 651525283 dns-tcp-queries-received-ipv4: 146953463 dns-tcp-queries-received-ipv6: 5966227 dns-udp-responses-sent-ipv4: 6220292567 dns-udp-responses-sent-ipv6: 652966659 dns-tcp-responses-sent-ipv4: 125985327 dns-tcp-responses-sent-ipv6: 4590633