--- service: j.root-servers.net start-period: '2016-03-31T00:00:00Z' end-period: '2016-03-31T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5778133668 dns-udp-queries-received-ipv6: 740543269 dns-tcp-queries-received-ipv4: 164797881 dns-tcp-queries-received-ipv6: 2888666 dns-udp-responses-sent-ipv4: 5506967043 dns-udp-responses-sent-ipv6: 742333306 dns-tcp-responses-sent-ipv4: 150515386 dns-tcp-responses-sent-ipv6: 312521