--- version: rssac002v4 service: a.root-servers.net start-period: '2022-07-01T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5930392242 dns-udp-queries-received-ipv6: 2066362707 dns-tcp-queries-received-ipv4: 388281526 dns-tcp-queries-received-ipv6: 133907671 dns-udp-responses-sent-ipv4: 5673784272 dns-udp-responses-sent-ipv6: 2061376273 dns-tcp-responses-sent-ipv4: 333290552 dns-tcp-responses-sent-ipv6: 133011475