--- version: rssac002v4 service: a.root-servers.net start-period: '2023-01-04T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6670044094 dns-udp-queries-received-ipv6: 2254087303 dns-tcp-queries-received-ipv4: 361300172 dns-tcp-queries-received-ipv6: 291313465 dns-udp-responses-sent-ipv4: 6502978187 dns-udp-responses-sent-ipv6: 2200384753 dns-tcp-responses-sent-ipv4: 341782710 dns-tcp-responses-sent-ipv6: 285463237