Ted Lemon wrote:

FWIW, I don't think it precludes doing queries with QDCOUNT > 1 to
the cache

1034:

   3.7.1. Standard queries

   A standard query specifies a target domain name (QNAME), query type
   (QTYPE), and query class (QCLASS) and asks for RRs which match.

which *DID* not preclude inverse queries with QDCOUNT=0 and responses
to them with QDCOUNT>1 as is stated in 1035:

   When the response to an inverse query contains one or more QNAMEs,

Anyway, w.r.t. letency, it is meaningless to have standard
queries with QDCOUNT>1.

                                        Masataka Ohta

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