CCNP Network Function Virtualization Practice Question
This 350-401 practice question tests your understanding of network function virtualization. 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.
Consider the following configuration:
router eigrp TEST
network 10.0.0.0 0.255.255.255
metric weights 0 1 0 1 0 0
What is the effect of the 'metric weights' command?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
It changes the EIGRP metric calculation to use only bandwidth and delay, which is the default behavior.
The 'metric weights' command in EIGRP allows you to modify the K values used in the composite metric formula. The default K values are K1=1, K2=0, K3=1, K4=0, K5=0, which means only bandwidth (K1) and delay (K3) are used. The command 'metric weights 0 1 0 1 0 0' explicitly sets K1=1, K3=1, and all others to 0, which matches the default behavior and does not change the metric calculation.
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.
✓
It changes the EIGRP metric calculation to use only bandwidth and delay, which is the default behavior.
Why this is correct
Correct. K1=1 (bandwidth) and K3=1 (delay) are used; K2, K4, K5 are zero, matching the default EIGRPmetric.
Related concept
Read the scenario before looking for a memorised answer.
✗
It changes the EIGRP metric calculation to use bandwidth, delay, and reliability.
Why it's wrong here
Incorrect. Reliability is controlled by K4 (default 0) and K5 (default 0); here K4=0, K5=0, so reliability is not used.
✗
It changes the EIGRP metric calculation to use only delay.
Why it's wrong here
Incorrect. Both K1 (bandwidth) and K3 (delay) are set to 1, so both are used.
✗
It disables the EIGRP metric calculation, causing all routes to have the same metric.
Why it's wrong here
Incorrect. The metric calculation still uses bandwidth and delay; it is not disabled.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Cisco often tests the misconception that changing K values from their defaults always alters the metric calculation, but here the specific values '0 1 0 1 0 0' exactly replicate the default K values (K1=1, K3=1), so the command has no net effect.
Detailed technical explanation
How to think about this question
The EIGRP composite metric formula is: metric = [K1 * bandwidth + (K2 * bandwidth) / (256 - load) + K3 * delay] * [K5 / (reliability + K4)] * 256. When K5 is 0 (as in this command), the reliability term is effectively ignored, and the formula reduces to (K1 * bandwidth + K3 * delay) * 256. This is a common way to revert to the classic IGRP-like metric behavior, and it is critical to note that the order of parameters in the command is: TOS, K1, K2, K3, K4, K5, where TOS is always 0 for standard EIGRP.
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.
TExam Day Tips
→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 350-401 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 exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Network Function Virtualization — This question tests Network Function Virtualization — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: It changes the EIGRP metric calculation to use only bandwidth and delay, which is the default behavior. — The 'metric weights' command in EIGRP allows you to modify the K values used in the composite metric formula. The default K values are K1=1, K2=0, K3=1, K4=0, K5=0, which means only bandwidth (K1) and delay (K3) are used. The command 'metric weights 0 1 0 1 0 0' explicitly sets K1=1, K3=1, and all others to 0, which matches the default behavior and does not change the metric calculation.
What should I do if I get this 350-401 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Question Discussion
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