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Domain Name Service is a distributed database system that is used to map:
Correct Answer: A
Explanation/Reference: Explanation: Domain Name Service translates domain names into IP addresses. Incorrect Answers: B: DNS is not used to map MAC addresses to domain names. DNS maps domain names into IP addresses. C: The RARP protocol translates MAC Address to IP addresses. D: The ARP protocol translates IP addresses to MAC Addresses. References: Harris, Shon, All In One CISSP Exam Guide, 6th Edition, McGraw-Hill, New York, 2013, p. 599