--- version: rssac002v3 service: a.root-servers.net start-period: '2019-11-21T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6679139443 dns-udp-queries-received-ipv6: 1345090223 dns-tcp-queries-received-ipv4: 235513713 dns-tcp-queries-received-ipv6: 73706093 dns-udp-responses-sent-ipv4: 6495564806 dns-udp-responses-sent-ipv6: 1344260242 dns-tcp-responses-sent-ipv4: 231803510 dns-tcp-responses-sent-ipv6: 74021441