--- version: rssac002v4 service: a.root-servers.net start-period: '2023-05-01T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6828829187 dns-udp-queries-received-ipv6: 2401527629 dns-tcp-queries-received-ipv4: 422630067 dns-tcp-queries-received-ipv6: 210382725 dns-udp-responses-sent-ipv4: 6248995692 dns-udp-responses-sent-ipv6: 1957018213 dns-tcp-responses-sent-ipv4: 365839445 dns-tcp-responses-sent-ipv6: 164879947