--- version: rssac002v3 service: a.root-servers.net start-period: '2020-01-16T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6492553110 dns-udp-queries-received-ipv6: 974393298 dns-tcp-queries-received-ipv4: 268932436 dns-tcp-queries-received-ipv6: 70409583 dns-udp-responses-sent-ipv4: 6281104081 dns-udp-responses-sent-ipv6: 967271518 dns-tcp-responses-sent-ipv4: 250580877 dns-tcp-responses-sent-ipv6: 70437572