What message is sent by a host to check the uniqueness of an IPv6 address before using that address?

Question:
What message is sent by a host to check the uniqueness of an IPv6 address before using that address?

• neighbor solicitation
• ARP request
• echo request
• router solicitation

Explanation: In IPv6, Duplicate Address Detection (DAD) is used in place of ARP. An IPv6 host performs DAD by sending a neighbor solicitation (NS) message to its own IPv6 address to ensure the uniqueness of the address prior to using it.

Exam with this question: 13.3.4 Module Quiz – ICMP Answers
Exam with this question: CyberOps Associate (Version 1.0) - Module 7: Connectivity Verification Quiz Answers
Exam with this question: Networking Devices and Initial Configuration Module 12.3.4 ICMP Quiz