--- version: rssac002v3 service: a.root-servers.net start-period: '2020-12-23T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5856739619 dns-udp-queries-received-ipv6: 1136484353 dns-tcp-queries-received-ipv4: 291192125 dns-tcp-queries-received-ipv6: 108312944 dns-udp-responses-sent-ipv4: 5684521696 dns-udp-responses-sent-ipv6: 1134119902 dns-tcp-responses-sent-ipv4: 279483624 dns-tcp-responses-sent-ipv6: 108659312