Cisco 300-715 Exam - Topic 1 Question 116 Discussion

Actual exam question for Cisco's 300-715 exam

Question #: 116
Topic #: 1

Which two probes must be enabled for the ARP cache to function in the Cisco ISE profile service so that a user can reliably bind the IP address and MAC addresses of endpoints? (Choose two.)

ANetFlow

BSNMP

CHTTP

DDHCP

ERADIUS

Show Suggested Answer

Suggested Answer: D, E

Cisco ISE implements an ARP cache in the profiling service, so that you can reliably map the IP addresses and the MAC addresses of endpoints. For the ARP cache to function, you must enable either the DHCP probe or the RADIUS probe. The DHCP and RADIUS probes carry the IP addresses and the MAC addresses of endpoints in the payload data. The dhcp-requested address attribute in the DHCP probe and the Framed-IP-address attribute in the RADIUS probe carry the IP addresses of endpoints, along with their MAC addresses, which can be mapped and stored in the ARP cache.

https://www.cisco.com/c/en/us/td/docs/security/ise/2-1/admin_guide/b_ise_admin_guide_21/b_ise_admin_guide_20_chapter_010100.html

by Tracie at Nov 25, 2025, 02:03 AM

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Hildred

5 months ago

Same here, B and D are the best options for ARP cache functionality.

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Huey

5 months ago

I feel confident about B and D. They’re essential for endpoint identification.

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Ivan

5 months ago

No way, A and E don’t fit. B and D are the clear choices.

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Tu

5 months ago

I’m leaning towards A and E. NetFlow and RADIUS could be relevant too.

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Deane

5 months ago

I agree, B and D make sense. They help with IP and MAC binding.

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Gail

5 months ago

I think it's B and D. SNMP and DHCP are crucial for ARP.

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Felix

6 months ago

RADIUS makes sense, but I’m not convinced about DHCP.

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Paris

6 months ago

Yup, DHCP is a must!

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Lashaunda

6 months ago

Wait, are you sure about that?

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Cherilyn

7 months ago

I thought SNMP was also required?

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Leatha

7 months ago

Definitely need DHCP and RADIUS for ARP cache.

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Lashawn

7 months ago

Wait, isn't the answer B and D? SNMP and DHCP? I'm pretty sure that's it.

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Margot

7 months ago

B and E, no doubt. SNMP and RADIUS are the probes you need. This is a piece of cake!

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Devora

7 months ago

Hmm, I think the answer is B and E. SNMP and RADIUS. Makes sense to me.

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Kerry

7 months ago

I practiced a similar question, and I think it was definitely DHCP and maybe RADIUS, but I’m not confident about RADIUS.

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Arlene

8 months ago

I feel like NetFlow could be involved, but I don't think it directly relates to ARP cache functionality.

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Alyce

8 months ago

I remember something about needing DHCP for IP address binding, but I can't recall the second probe.

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Stefan

8 months ago

I think it might be DHCP and SNMP, but I'm not entirely sure about SNMP.

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Odette

8 months ago

Alright, I'm feeling more confident about this now. I'll carefully consider each of the options and eliminate the ones that don't seem directly related to the ARP cache.

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Minna

8 months ago

I think I've got a strategy here. I'll need to review my notes on the different probes and their functions to determine which two are most relevant for the ARP cache.

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Cheryl

8 months ago

I'm pretty sure the answer is B and D. SNMP and DHCP, right?

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Phil

9 months ago

B and E are the correct answers. SNMP and RADIUS are required for the ARP cache to function in the Cisco ISE profile service.

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Dick

9 months ago

I'm a bit confused on this one. I'm not sure which probes are specifically required for the ARP cache to function in the Cisco ISE profile service.

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Tatum

9 months ago

B and E for sure. SNMP and RADIUS are the way to go. Easy peasy!

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Filiberto

9 months ago

Okay, let's see. I know the ARP cache is used to map IP addresses to MAC addresses, so I'll need to figure out which probes are involved in that process.

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