--- version: rssac002v4 service: a.root-servers.net start-period: '2023-05-22T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6854360601 dns-udp-queries-received-ipv6: 2019156424 dns-tcp-queries-received-ipv4: 416897213 dns-tcp-queries-received-ipv6: 143890021 dns-udp-responses-sent-ipv4: 6430144727 dns-udp-responses-sent-ipv6: 1739226572 dns-tcp-responses-sent-ipv4: 374277641 dns-tcp-responses-sent-ipv6: 110290544