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?
The feature that enables an interface to receive both untagged traffic from a computer and tagged traffic from an IP phone is voice VLAN. By configuring the interface with a data VLAN for the computer's untagged traffic and a voice VLAN for the IP phone's tagged traffic, the switch can properly handle both types of traffic. Additionally, using a voice VLAN helps ensure quality of service (QoS) for voice traffic.
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).
D is correct
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.
Native VLAN looks correct
I think its native VLAN.