Exam 100-101 Topic 9 Question 63 Discussion

Actual exam question for Facebook's 100-101 exam
Question #: 63
Topic #: 9
The ip helper-address command does what?

Suggested Answer: C Vote an answer

When the DHCP client sends the DHCP request packet, it doesn't have an IP address. So it uses the all-zeroes address, 0.0.0.0, as the IP source address. And it doesn't know how to reach the DHCP server, so it uses a general broadcast address, 255.255.255.255, for the destination. So the router must replace the source address with its own IP address, for the interface that received the request. And it replaces the destination address with the address specified in the ip helper-address command. The client device's MAC address is included in the payload of the original DHCP request packet, so the router doesn't need to do anything to ensure that the server receives this information.
Topic 6, Network Device Security

by Hiram at Jun 22, 2025, 09:55 AM

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