ECCouncil Certified Ethical Hacker Exam 312-50 Question # 13 Topic 2 Discussion

ECCouncil Certified Ethical Hacker Exam 312-50 Question # 13 Topic 2 Discussion

312-50 Exam Topic 2 Question 13 Discussion:
Question #: 13
Topic #: 2

A company has publicly hosted web applications and an internal Intranet protected by a firewall. Which technique will help protect against enumeration?


A.

Reject all invalid email received via SMTP.


B.

Allow full DNS zone transfers.


C.

Remove A records for internal hosts.


D.

Enable null session pipes.


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