Exam 350-401 topic 1 question 418 discussion

Actual exam question from Cisco's 350-401

Question #: 418
Topic #: 1

Refer to the exhibit. An engineer must set up connectivity between a campus aggregation layer and a branch office access layer. The engineer uses dynamic trunking protocol to establish this connection; however, management traffic on VLAN1 is not passing. Which action resolves the issue and allow communication for all configured VLANs?

A. Disable Spanning Tree for the native VLAN.
B. Allow all VLANs on the trunk links.
C. Change both interfaces to access ports.
D. Configure the correct native VLAN on the remote interface

Show Suggested Answer

Suggested Answer: D 🗳️

by forccnp at Nov. 24, 2022, 9:53 a.m.

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andrpercud

7 months, 1 week ago

Selected Answer: D

The error message indicates a native VLAN mismatch between SW1 and SW2 on the trunk link. Since VLAN 1 is the default native VLAN on Cisco devices, and the remote side (SW1) is configured to use VLAN 30 as the native VLAN, this mismatch can prevent management traffic from passing. To resolve the issue and allow communication for all configured VLANs, the best action is: C. Configure the correct native VLAN on the remote interface. By ensuring that both ends of the trunk link have the same native VLAN configured, you will resolve the mismatch and allow management traffic to flow as expected.

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[Removed]

1 year ago

Selected Answer: D

D is correct

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mgiuseppe86

1 year, 9 months ago

After doing so many Cisco exams you subconsciously are trained on thinking the most obvious answer isnt correct because Cisco will throw 14 double negatives and random words to throw you off.

upvoted 3 times

mgiuseppe86

1 year, 9 months ago

Cisco exams are more of English literature exams meant for Hoodini

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ihateciscoreally

1 year, 9 months ago

its cisco question, its cant be so straightforward.

upvoted 2 times

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nushadu

2 years, 5 months ago

Selected Answer: D

sw1(config-if)#switchport trunk native vlan 122 sw1(config-if)# Dec 21 21:37:35.737: %CDP-4-NATIVE_VLAN_MISMATCH: Native VLAN mismatch discovered on Ethernet0/1 (122), with sw2 Ethernet0/1 (1). Dec 21 21:37:35.738: %CDP-4-NATIVE_VLAN_MISMATCH: Native VLAN mismatch discovered on Ethernet0/3 (122), with sw2 Ethernet0/3 (1). sw1(config-if)# Dec 21 21:38:35.744: %CDP-4-NATIVE_VLAN_MISMATCH: Native VLAN mismatch discovered on Ethernet0/3 (122), with sw2 Ethernet0/3 (1). Dec 21 21:38:35.744: %CDP-4-NATIVE_VLAN_MISMATCH: Native VLAN mismatch discovered on Ethernet0/1 (122), with sw2 Ethernet0/1 (1). sw1(config-if)#do show interfaces po2 swi | i Native Trunking Native Mode VLAN: 122 (VLAN0122) <<<<<<<<<<<<<<<<<<<<< Administrative Native VLAN tagging: enabled Administrative private-vlan trunk Native VLAN tagging: enabled sw1(config-if)#

upvoted 2 times

nushadu

2 years, 5 months ago

far-end: sw2#show interfaces po2 swi | i Native Trunking Native Mode VLAN: 1 (default) <<<<<<<<<<<<<<<<<<<<< Administrative Native VLAN tagging: enabled Administrative private-vlan trunk Native VLAN tagging: enabled sw2# sw2# sw2# *Dec 21 21:39:35.745: %CDP-4-NATIVE_VLAN_MISMATCH: Native VLAN mismatch discovered on Ethernet0/1 (1), with sw1.local.lab Ethernet0/1 (122). *Dec 21 21:39:35.745: %CDP-4-NATIVE_VLAN_MISMATCH: Native VLAN mismatch discovered on Ethernet0/3 (1), with sw1.local.lab Ethernet0/3 (122). sw2#

upvoted 1 times

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forccnp

2 years, 6 months ago

Selected Answer: D

D is correct

upvoted 2 times

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