Certified Ethical Hacker Quiz 15.

Question: 15

Which of the following statements about a zone transfer correct?(Choose three)

A. A zone transfer is accomplished with the DNS
B. A zone transfer is accomplished with the nslookup service
C. A zone transfer passes all zone information that a DNS server maintains
D. A zone transfer passes all zone information that a nslookup server maintains
E. A zone transfer can be prevented by blocsheets all inbound TCP port 53 connections
F. Zone transfers cannot occur on the Internet


Answer: A, C, E

Explanation:
Securing DNS servers should be a priority of the organization. Hackers obtaining DNS
information can discover a wealth of information about an organization. This information can be
used to further exploit the network.