--- version: rssac002v4 service: a.root-servers.net start-period: '2022-05-16T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5003539353 dns-udp-queries-received-ipv6: 1580150150 dns-tcp-queries-received-ipv4: 284317919 dns-tcp-queries-received-ipv6: 55387010 dns-udp-responses-sent-ipv4: 4849358188 dns-udp-responses-sent-ipv6: 1586041250 dns-tcp-responses-sent-ipv4: 265744928 dns-tcp-responses-sent-ipv6: 55354392