--- version: rssac002v3 service: a.root-servers.net start-period: '2020-01-15T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6560091833 dns-udp-queries-received-ipv6: 976859047 dns-tcp-queries-received-ipv4: 269461168 dns-tcp-queries-received-ipv6: 71577912 dns-udp-responses-sent-ipv4: 6350158606 dns-udp-responses-sent-ipv6: 969635999 dns-tcp-responses-sent-ipv4: 249625667 dns-tcp-responses-sent-ipv6: 71670463