--- version: rssac002v4 service: a.root-servers.net start-period: '2022-04-24T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4534506554 dns-udp-queries-received-ipv6: 1343528986 dns-tcp-queries-received-ipv4: 240992300 dns-tcp-queries-received-ipv6: 48966264 dns-udp-responses-sent-ipv4: 4525089256 dns-udp-responses-sent-ipv6: 1348113882 dns-tcp-responses-sent-ipv4: 238420327 dns-tcp-responses-sent-ipv6: 48919583