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Question 49 - JN0-105 discussion

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Which protocol is responsible for learning an IPv4 neighbor's MAC address?

A.
Address Resolution Protocol (ARP)
Answers
A.
Address Resolution Protocol (ARP)
B.
Network Address Translation (NAT)
Answers
B.
Network Address Translation (NAT)
C.
Media Access Control Security (MACsec)
Answers
C.
Media Access Control Security (MACsec)
D.
Neighbor Discovery Protocol (NDP)
Answers
D.
Neighbor Discovery Protocol (NDP)
Suggested answer: A

Explanation:

The Address Resolution Protocol (ARP) is responsible for mapping an IPv4 address to a machine's MAC address. ARP operates at Layer 2 of the OSI model and is used to find the MAC address of a host given its IPv4 address. When a device wants to communicate with another device on the same local network, it uses ARP to discover the recipient's MAC address.

Juniper official documentation: ARP.

Networking standards: RFC 826.

asked 18/09/2024
william hwang
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