--- service: j.root-servers.net start-period: '2016-06-15T00:00:00Z' end-period: '2016-06-15T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6589594465 dns-udp-queries-received-ipv6: 678792900 dns-tcp-queries-received-ipv4: 189060257 dns-tcp-queries-received-ipv6: 3550424 dns-udp-responses-sent-ipv4: 6317131617 dns-udp-responses-sent-ipv6: 677679935 dns-tcp-responses-sent-ipv4: 157933900 dns-tcp-responses-sent-ipv6: 872339