--- service: j.root-servers.net start-period: '2016-12-31T00:00:00Z' end-period: '2016-12-31T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5954939837 dns-udp-queries-received-ipv6: 587242111 dns-tcp-queries-received-ipv4: 194384404 dns-tcp-queries-received-ipv6: 10604256 dns-udp-responses-sent-ipv4: 5815227967 dns-udp-responses-sent-ipv6: 591105092 dns-tcp-responses-sent-ipv4: 165541233 dns-tcp-responses-sent-ipv6: 10725190