--- version: rssac002v4 service: a.root-servers.net start-period: '2022-02-17T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5231538347 dns-udp-queries-received-ipv6: 1282257781 dns-tcp-queries-received-ipv4: 303178422 dns-tcp-queries-received-ipv6: 58531226 dns-udp-responses-sent-ipv4: 5423401735 dns-udp-responses-sent-ipv6: 1318569287 dns-tcp-responses-sent-ipv4: 297059590 dns-tcp-responses-sent-ipv6: 58699066