--- version: rssac002v3 service: a.root-servers.net start-period: '2020-02-28T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7381375410 dns-udp-queries-received-ipv6: 1266533198 dns-tcp-queries-received-ipv4: 310876084 dns-tcp-queries-received-ipv6: 79443753 dns-udp-responses-sent-ipv4: 7099572421 dns-udp-responses-sent-ipv6: 1201404780 dns-tcp-responses-sent-ipv4: 296930713 dns-tcp-responses-sent-ipv6: 79208948