--- version: rssac002v3 service: a.root-servers.net start-period: '2020-05-21T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 8313649005 dns-udp-queries-received-ipv6: 1544511534 dns-tcp-queries-received-ipv4: 296864746 dns-tcp-queries-received-ipv6: 102651681 dns-udp-responses-sent-ipv4: 8113635136 dns-udp-responses-sent-ipv6: 1543185266 dns-tcp-responses-sent-ipv4: 281239631 dns-tcp-responses-sent-ipv6: 103133393