--- service: h.root-servers.net metric: traffic-volume version: rssac002v3 start-period: '2019-12-09T00:00:00Z' dns-udp-queries-received-ipv4: 3797495208 dns-udp-queries-received-ipv6: 883527905 dns-tcp-queries-received-ipv4: 148039496 dns-tcp-queries-received-ipv6: 44336003 dns-udp-responses-sent-ipv4: 3557707386 dns-udp-responses-sent-ipv6: 841050327 dns-tcp-responses-sent-ipv4: 135065164 dns-tcp-responses-sent-ipv6: 39157480