--- version: rssac002v4 service: a.root-servers.net start-period: '2023-05-15T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6986899321 dns-udp-queries-received-ipv6: 2170218877 dns-tcp-queries-received-ipv4: 452256857 dns-tcp-queries-received-ipv6: 174843769 dns-udp-responses-sent-ipv4: 6520541098 dns-udp-responses-sent-ipv6: 1842313171 dns-tcp-responses-sent-ipv4: 392899815 dns-tcp-responses-sent-ipv6: 127784669