--- version: rssac002v3 service: a.root-servers.net start-period: '2020-01-06T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6972230019 dns-udp-queries-received-ipv6: 977276591 dns-tcp-queries-received-ipv4: 262528071 dns-tcp-queries-received-ipv6: 72050238 dns-udp-responses-sent-ipv4: 6780190222 dns-udp-responses-sent-ipv6: 971128313 dns-tcp-responses-sent-ipv4: 255634917 dns-tcp-responses-sent-ipv6: 72224197