Question 655 of 2,152

VRF-Lite →hardMultiple SelectObjective-mapped

Quick Answer

The answer is that a DHCP server in the global routing table can serve clients in a VRF if the relay agent is configured appropriately, and the DHCP relay can forward requests from a VRF to a server in a different VRF. This works because the ip dhcp relay command supports the vrf keyword, allowing the relay agent to insert the correct VRF information into the DHCP packets and route them across VRF boundaries or to the global table. On the Cisco CCNP ENARSI 300-410 exam, this concept tests your understanding of how VRF-Lite isolates routing tables while still permitting DHCP services through careful relay configuration—a common trap is assuming DHCP pools must be defined within the same VRF, but pools are always global. Remember that the relay is the bridge: without the vrf keyword on the relay command, the client’s request stays stuck in its VRF. A useful memory tip is “relay routes, pools are global”—the relay does the VRF crossing, not the pool definition.

300-410 VRF-Lite Practice Question

This 300-410 practice question tests your understanding of vrf-lite. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.

Which TWO statements about VRF-Lite and DHCP are true? (Choose TWO.)

Question 1hardmulti select

Read the full DHCP explanation →

A
The 'ip dhcp relay' command can be configured with the 'vrf' keyword to forward DHCP requests from a VRF to a DHCP server in a different VRF.
Correct. Example: 'ip dhcp relay vrf BLUE 10.1.1.1' relays requests from VRF BLUE to the DHCP server at 10.1.1.1 (which could be in another VRF or global).
B
DHCP clients in a VRF cannot obtain an IP address from a DHCP server that is in the same VRF.
Why wrong: Incorrect. DHCP works normally within the same VRF; the server and client can be in the same VRF without relay.
C
The 'ip dhcp pool' command supports a 'vrf' keyword to associate the pool with a specific VRF.
Why wrong: Incorrect. DHCP pools are global; there is no 'vrf' keyword under 'ip dhcp pool'. The VRF association is done via the relay or interface.
D
A DHCP server in the global routing table can serve clients in a VRF if the relay agent is configured appropriately.
Correct. The relay agent can forward requests from the VRF to the global server, and the server's response is routed back via the relay.
E
DHCP snooping must be enabled globally for DHCP to work across VRFs.
Why wrong: Incorrect. DHCP snooping is a security feature and is not required for DHCP operation across VRFs.

Full breakdown with real-world context →

Answer choices

Why each option matters

Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.

Correct answer & explanation

✓

The 'ip dhcp relay' command can be configured with the 'vrf' keyword to forward DHCP requests from a VRF to a DHCP server in a different VRF.

In VRF-Lite, DHCP can be configured to operate within a specific VRF. The 'ip dhcp relay' command can be used with the 'vrf' keyword to relay DHCP requests from a VRF to a DHCP server in another VRF or the global table. Option A is correct because the relay can forward to a server in a different VRF. Option D is correct because the DHCP server can be in the global routing table and still serve clients in a VRF if the relay is configured correctly. Option B is incorrect because DHCP clients can obtain addresses from a server in the same VRF without relay. Option C is incorrect because the 'ip dhcp pool' command does not have a 'vrf' keyword; pools are global. Option E is incorrect because DHCP snooping is not required for VRF-Lite DHCP to work.

Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

✓
The 'ip dhcp relay' command can be configured with the 'vrf' keyword to forward DHCP requests from a VRF to a DHCP server in a different VRF.
Why this is correct
Correct. Example: 'ip dhcp relay vrf BLUE 10.1.1.1' relays requests from VRF BLUE to the DHCP server at 10.1.1.1 (which could be in another VRF or global).
Related concept
Read the scenario before looking for a memorised answer.
✗
DHCP clients in a VRF cannot obtain an IP address from a DHCP server that is in the same VRF.
Why it's wrong here
Incorrect. DHCP works normally within the same VRF; the server and client can be in the same VRF without relay.
✗
The 'ip dhcp pool' command supports a 'vrf' keyword to associate the pool with a specific VRF.
Why it's wrong here
Incorrect. DHCP pools are global; there is no 'vrf' keyword under 'ip dhcp pool'. The VRF association is done via the relay or interface.
✓
A DHCP server in the global routing table can serve clients in a VRF if the relay agent is configured appropriately.
Why this is correct
Correct. The relay agent can forward requests from the VRF to the global server, and the server's response is routed back via the relay.
Related concept
Read the scenario before looking for a memorised answer.
✗
DHCP snooping must be enabled globally for DHCP to work across VRFs.
Why it's wrong here
Incorrect. DHCP snooping is a security feature and is not required for DHCP operation across VRFs.

Common exam traps

Common exam trap: answer the scenario, not the keyword

Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.

Trap categories for this question

Keyword trap
Incorrect. DHCP pools are global; there is no 'vrf' keyword under 'ip dhcp pool'. The VRF association is done via the relay or interface.

Detailed technical explanation

How to think about this question

This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.

KKey Concepts to Remember

Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
Use explanations to understand the rule behind the answer.

TExam Day Tips

Underline the problem statement mentally.
Watch for words such as best, first, most likely and least administrative effort.
Review why wrong options are wrong, not only why the correct option is correct.

Key takeaway

Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.

Real-world example

How this comes up in practice

A practitioner preparing for the 300-410 exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.

What to study next

Got this wrong? Here's your next step.

Identify which 300-410 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.

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FAQ

Questions learners often ask

What does this 300-410 question test?

VRF-Lite — This question tests VRF-Lite — Read the scenario before looking for a memorised answer..

What is the correct answer to this question?

The correct answer is: The 'ip dhcp relay' command can be configured with the 'vrf' keyword to forward DHCP requests from a VRF to a DHCP server in a different VRF. — In VRF-Lite, DHCP can be configured to operate within a specific VRF. The 'ip dhcp relay' command can be used with the 'vrf' keyword to relay DHCP requests from a VRF to a DHCP server in another VRF or the global table. Option A is correct because the relay can forward to a server in a different VRF. Option D is correct because the DHCP server can be in the global routing table and still serve clients in a VRF if the relay is configured correctly. Option B is incorrect because DHCP clients can obtain addresses from a server in the same VRF without relay. Option C is incorrect because the 'ip dhcp pool' command does not have a 'vrf' keyword; pools are global. Option E is incorrect because DHCP snooping is not required for VRF-Lite DHCP to work.

What should I do if I get this 300-410 question wrong?

What is the key concept behind this question?

Read the scenario before looking for a memorised answer.

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