Indicates if recursive query support is available on a name server.
property RA: Word;
RA is a Word property that indicates if recursive query support is available on the DNS server responding to the DNS query. RA will contain the value 1 when recursive queries are availabale on the name server, or the value 0 when recursive queries are not supported or allowed for the DNS resolver.
Use RD to indicate if recursive query support is desired in a DNS request.
RA is represented in a DNS header as a bit field. Changing the value of RA ensures that the appropriate bit field is updated in the DNS header for the message packet.
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