--- service: h.root-servers.net metric: traffic-volume version: rssac002v3 start-period: '2019-01-31T00:00:00Z' dns-udp-queries-received-ipv4: 2438256693 dns-udp-queries-received-ipv6: 502001556 dns-tcp-queries-received-ipv4: 41723306 dns-tcp-queries-received-ipv6: 12038118 dns-udp-responses-sent-ipv4: 2425721939 dns-udp-responses-sent-ipv6: 500480683 dns-tcp-responses-sent-ipv4: 38584155 dns-tcp-responses-sent-ipv6: 11292629