--- service: j.root-servers.net start-period: '2016-09-15T00:00:00Z' end-period: '2016-09-15T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7152090618 dns-udp-queries-received-ipv6: 717925020 dns-tcp-queries-received-ipv4: 202960784 dns-tcp-queries-received-ipv6: 5306986 dns-udp-responses-sent-ipv4: 6984378656 dns-udp-responses-sent-ipv6: 719728890 dns-tcp-responses-sent-ipv4: 162271937 dns-tcp-responses-sent-ipv6: 3266050