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Question 73 - 312-50v12 discussion

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is a set of extensions to DNS that provide the origin authentication of DNS data to DNS clients (resolvers) so as to reduce the threat of DNS poisoning, spoofing, and similar types of attacks.

A.
DNSSEC
Answers
A.
DNSSEC
B.
Resource records
Answers
B.
Resource records
C.
Resource transfer
Answers
C.
Resource transfer
D.
Zone transfer
Answers
D.
Zone transfer
Suggested answer: A

Explanation:

The Domain Name System Security Extensions (DNSSEC) is a suite of Internet Engineering Task Force (IETF) specifications for securing certain kinds of information provided by DNS for use on IP networks. DNSSEC is a set of extensions to DNS provide to DNS clients (resolvers) origin authentication of DNS data, authenticated denial of existence, and data integrity, but not availability or confidentiality. DNSSEC is necessary because the original DNS design did not include security but was designed to be a scalable distributed system. DNSSEC adds security while maintaining backward compatibility.

asked 18/09/2024
Marc Casin Martinez
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