--- service: h.root-servers.net metric: traffic-volume version: rssac002v3 start-period: '2019-12-30T00:00:00Z' dns-udp-queries-received-ipv4: 3777734855 dns-udp-queries-received-ipv6: 740081885 dns-tcp-queries-received-ipv4: 177212206 dns-tcp-queries-received-ipv6: 58899815 dns-udp-responses-sent-ipv4: 3539757748 dns-udp-responses-sent-ipv6: 733976582 dns-tcp-responses-sent-ipv4: 158444724 dns-tcp-responses-sent-ipv6: 57759453