--- version: rssac002v4 service: a.root-servers.net start-period: '2023-01-31T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6872961501 dns-udp-queries-received-ipv6: 2219011206 dns-tcp-queries-received-ipv4: 418653409 dns-tcp-queries-received-ipv6: 129542923 dns-udp-responses-sent-ipv4: 6334858665 dns-udp-responses-sent-ipv6: 1910439567 dns-tcp-responses-sent-ipv4: 351862987 dns-tcp-responses-sent-ipv6: 105553067