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In subdomain enumeration, what problem can a wildcard DNS record (e.g., *.example.com → 203.0.113.10) cause for tools like Dnssearch?

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In subdomain enumeration, what problem can a wildcard DNS record (e.g., *.example.com → 203.0.113.10) cause for tools like Dnssearch?

It speeds up finding real subdomains

It prevents any DNS queries from succeeding

It causes false positives because every queried name resolves to the wildcard IP, hiding which subdomains are real

It forces AXFR to succeed

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