An administrator is troubleshooting a private VLAN on a Juniper switch. They have configured a primary VLAN and an isolated VLAN, and assigned a host port to the isolated VLAN. The host cannot reach the gateway connected to a promiscuous port. Which configuration step is most likely missing?

The isolated VLAN must be associated with the primary VLAN.

The switch must have routing enabled.

The gateway must be in the same isolated VLAN.

The host port must be configured as a trunk port.

In a private VLAN, how does traffic flow between two ports in the same community VLAN?

Traffic is forwarded directly between the ports

Traffic is forwarded through an isolated port

Traffic is forwarded through a promiscuous port

A network engineer is designing a private VLAN for a multi-tenant building. Each tenant has multiple devices that need to communicate with each other, but tenants must not communicate with other tenants. All tenants need internet access. Which private VLAN design meets these requirements?

One community VLAN per tenant, with all tenant devices in that community VLAN, and a promiscuous port for the internet gateway.

A single community VLAN for all tenants, with a promiscuous port for the internet gateway.

A single isolated VLAN for all tenants, with a promiscuous port for the internet gateway.

One isolated VLAN per tenant, with all tenant devices in that isolated VLAN, and a promiscuous port for the internet gateway.

In a private VLAN, a host port in a community VLAN sends a unicast frame to another host port in the same community VLAN. What will the switch do?

Forward the frame directly to the destination host port.

Drop the frame because community VLANs do not allow host-to-host communication.

Flood the frame to all ports in the primary VLAN.

Forward the frame only to promiscuous ports.

Juniper NetworksCertified Professional, Enterprise Routing and Switching (JNCIP-ENT)

Domain 4Objective 2

Private VLANs JN0-650 Practice Questions (Page 1)

Part of the Ethernet Switching and Spanning Tree domain, which makes up ~12% of our current practice bank. Juniper Networks does not publish an official question count, but from its 90-minute exam (~35–60 total, ~4–7 in this domain), expect 1–1 from this objective — we provide 16 practice questions to prepare you well beyond it. (estimate)

16questions here

4free pages

5concepts

Questions 1–5

1foundation · easy
Which Junos command displays the private VLAN configuration and the associated secondary VLANs?
Select an answer first
2expert · hard
An administrator is troubleshooting a private VLAN on a Juniper switch. They have configured a primary VLAN and an isolated VLAN, and assigned a host port to the isolated VLAN. The host cannot reach the gateway connected to a promiscuous port. Which configuration step is most likely missing?
Select an answer first
3foundation · easy
In a private VLAN, how does traffic flow between two ports in the same community VLAN?
Select an answer first
4expert · hard
A network engineer is designing a private VLAN for a multi-tenant building. Each tenant has multiple devices that need to communicate with each other, but tenants must not communicate with other tenants. All tenants need internet access. Which private VLAN design meets these requirements?
Select an answer first
5application · medium
In a private VLAN, a host port in a community VLAN sends a unicast frame to another host port in the same community VLAN. What will the switch do?
Select an answer first

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