--- version: rssac002v4 service: a.root-servers.net start-period: '2023-01-02T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6384207815 dns-udp-queries-received-ipv6: 1779083722 dns-tcp-queries-received-ipv4: 329808501 dns-tcp-queries-received-ipv6: 77302362 dns-udp-responses-sent-ipv4: 6204227131 dns-udp-responses-sent-ipv6: 1733239234 dns-tcp-responses-sent-ipv4: 299731915 dns-tcp-responses-sent-ipv6: 75381410