Systems Security Certified Practitioner (SSCP) — Question 94

What protocol is used on the Local Area Network (LAN) to obtain an IP address from it's known MAC address?

Answer options

• A. Reverse address resolution protocol (RARP)
• B. Address resolution protocol (ARP)
• C. Data link layer
• D. Network address translation (NAT)

Correct answer: A

Explanation

The correct answer is A, Reverse address resolution protocol (RARP), as it specifically allows devices to obtain their IP address when they know their MAC address. Option B, Address resolution protocol (ARP), serves the opposite function, resolving IP addresses to MAC addresses. Options C and D, Data link layer and Network address translation (NAT), are not protocols for obtaining IP addresses from MAC addresses.