Exam JN0-351 topic 1 question 16 discussion

Actual exam question from Juniper's JN0-351

Question #: 16
Topic #: 1

You are asked to connect an IP phone and a user computer using the same interface on an EX Series switch. The traffic from the computer does not use a VLAN tag, whereas the traffic from the IP phone uses a VLAN tag.
Which feature enables the interface to receive both types of traffic?

A. native VLAN
B. DHCP snooping
C. MAC limiting
D. voice VLAN

Show Suggested Answer

Suggested Answer: D 🗳️

by julin_10 at Dec. 14, 2023, 1:26 p.m.

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TheRich2812

1 week, 6 days ago

Selected Answer: D

D is correct

upvoted 1 times

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JosueSXYrouting

11 months, 3 weeks ago

The native vlan is used to associate the untagged traffic on a interface that is also carrying Tagged traffic. For voice traffic you would use a the voice vlan to separate the tagged voice traffic.

upvoted 1 times

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sandaruwann654

1 year, 1 month ago

Selected Answer: D

D is correct

upvoted 2 times

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kopcink

1 year, 5 months ago

Selected Answer: D

D: Voice VLAN is correct - the tricky part of this question is that you indeed could obtain the same goal with Native VLAN. But for this case (connecting IP Phone and PC), dedicated mechanism is Voice VLAN, which fulfills the same goals and provides more: - You configure the interface as access for Data VLAN (traffic for the PC is untagged) - You configure the voice vlan for the same interface (traffic for the Phone is tagged) - Voice VLAN provides a easy way for marking tagged traffic for Voice (QoS).

upvoted 3 times

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lmla89

1 year, 6 months ago

Selected Answer: A

Native VLAN looks correct

upvoted 1 times

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julin_10

1 year, 6 months ago

I think its native VLAN.

upvoted 1 times

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