--- version: rssac002v4 service: a.root-servers.net start-period: '2023-03-18T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6622294623 dns-udp-queries-received-ipv6: 2052938254 dns-tcp-queries-received-ipv4: 470207290 dns-tcp-queries-received-ipv6: 102678030 dns-udp-responses-sent-ipv4: 6073393362 dns-udp-responses-sent-ipv6: 1706100377 dns-tcp-responses-sent-ipv4: 405834984 dns-tcp-responses-sent-ipv6: 75313139