Which aspect of security is DNSSEC designed to ensure? 

Answer options:

A. Integrity
B. Authentication
C. Availability
D. Confidentiality

A

DNSSEC is a security extension to the regular DNS protocol and services that allows for the validation of the integrity of DNS lookups. It does not address confidentiality or availability at all. It allows for a DNS client to perform DNS lookups and validate both their origin and authority via the cryptographic signature that accompanies the DNS response.