Exam N10-007 topic 1 question 600 discussion

Actual exam question from CompTIA's N10-007

Question #: 600
Topic #: 1

A switch is being configured for installation into a new building. The network design is such that the only DHCP server resides in the datacenter. A traditional three-layer network hierarchy is being used, and all buildings have a Layer 3 connection back to the core. Which of the following should the technician configure to get DHCP working properly in the new building?

A. The SMTP relays in the datacenter
B. The MAC address reservations
C. The IP helper address on the switch
D. The ARP forwarding on the switch

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Suggested Answer: C 🗳️

by MyName7 at Oct. 28, 2021, 2:34 p.m.

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MyName7

3 years, 7 months ago

One level above DHCP relay is IP helper. These two terms are often used as synonyms, but they are not; a better way to think of it is with IP helper being a superset DHCP relay. IP helper will, by default, forward broadcasts for DHCP/BOOTP, TFTP, DNS, TACACS, the time service, and the NetBIOS name/datagram service (ports 137–139). You can disable the additional traffic (or add more), but by default IP helper will do more than a DHCP relay

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