--- version: rssac002v4 service: a.root-servers.net start-period: '2023-02-02T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6855661302 dns-udp-queries-received-ipv6: 2370221201 dns-tcp-queries-received-ipv4: 425039081 dns-tcp-queries-received-ipv6: 199318321 dns-udp-responses-sent-ipv4: 6275691859 dns-udp-responses-sent-ipv6: 2027577352 dns-tcp-responses-sent-ipv4: 352416188 dns-tcp-responses-sent-ipv6: 171900653