--- version: rssac002v4 service: a.root-servers.net start-period: '2023-03-27T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6977920929 dns-udp-queries-received-ipv6: 2169173100 dns-tcp-queries-received-ipv4: 423540657 dns-tcp-queries-received-ipv6: 168519963 dns-udp-responses-sent-ipv4: 6434506822 dns-udp-responses-sent-ipv6: 1831755595 dns-tcp-responses-sent-ipv4: 374534069 dns-tcp-responses-sent-ipv6: 143024172