--- version: rssac002v4 service: a.root-servers.net start-period: '2022-03-08T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5356096835 dns-udp-queries-received-ipv6: 1454543337 dns-tcp-queries-received-ipv4: 304466707 dns-tcp-queries-received-ipv6: 95581665 dns-udp-responses-sent-ipv4: 5543215142 dns-udp-responses-sent-ipv6: 1476867779 dns-tcp-responses-sent-ipv4: 301067534 dns-tcp-responses-sent-ipv6: 95622727