--- service: j.root-servers.net start-period: '2015-03-18T00:00:00Z' end-period: '2015-03-18T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3905651168 dns-udp-queries-received-ipv6: 357841398 dns-tcp-queries-received-ipv4: 35662290 dns-tcp-queries-received-ipv6: 5187458 dns-udp-responses-sent-ipv4: 3931479686 dns-udp-responses-sent-ipv6: 357668840 dns-tcp-responses-sent-ipv4: 35667636 dns-tcp-responses-sent-ipv6: 5301157