--- version: rssac002v4 service: a.root-servers.net start-period: '2023-12-31T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7620039773 dns-udp-queries-received-ipv6: 1507437565 dns-tcp-queries-received-ipv4: 390262382 dns-tcp-queries-received-ipv6: 69452558 dns-udp-responses-sent-ipv4: 7446072061 dns-udp-responses-sent-ipv6: 1480004906 dns-tcp-responses-sent-ipv4: 364688907 dns-tcp-responses-sent-ipv6: 56421926