--- service: h.root-servers.net metric: traffic-volume start-period: '2016-05-16T00:00:00Z' end-period: '2016-05-16T23:59:59Z' dns-udp-queries-received-ipv4: 3353128852 dns-udp-queries-received-ipv6: 161528437 dns-tcp-queries-received-ipv4: 532689 dns-tcp-queries-received-ipv6: 196656 dns-udp-responses-sent-ipv4: 3382483148 dns-udp-responses-sent-ipv6: 169839771 dns-tcp-responses-sent-ipv4: 419787 dns-tcp-responses-sent-ipv6: 144082