--- version: rssac002v4 service: a.root-servers.net start-period: '2023-03-31T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6909473663 dns-udp-queries-received-ipv6: 2335232749 dns-tcp-queries-received-ipv4: 442921928 dns-tcp-queries-received-ipv6: 244078420 dns-udp-responses-sent-ipv4: 6359401699 dns-udp-responses-sent-ipv6: 1990799450 dns-tcp-responses-sent-ipv4: 391059762 dns-tcp-responses-sent-ipv6: 217729359