A service provider is implementing Q-in-Q tunneling to connect multiple customer sites. Each customer uses VLAN 100 internally. The provider assigns a unique outer VLAN tag to each customer. What is the primary benefit of this approach?

It reduces the size of the Ethernet frame.

It provides encryption for customer traffic.

It allows customers to use overlapping VLAN IDs without conflict.

It eliminates the need for VLAN tagging on customer equipment.

A network administrator is configuring a trunk link between two Juniper switches. The administrator wants untagged frames on the trunk to be assigned to VLAN 5. Which configuration is required on the trunk interface?

Configure a logical interface with 'vlan-id 5' and 'family ethernet-switching'.

Enable 'flexible-vlan-tagging' and set 'vlan-id 5' on a logical interface.

Set 'native-vlan-id 5' on the physical interface.

Remove 'vlan-tagging' and configure the interface as an access port in VLAN 5.

Which statement about the native VLAN is true?

The native VLAN is always VLAN 1.

Untagged frames on a trunk are assigned to the native VLAN.

The native VLAN must be the same on both ends of a trunk link.

The native VLAN is used for all tagged frames on a trunk.

What is the purpose of flexible VLAN tagging on a Junos interface?

To allow the interface to handle both tagged and untagged frames.

To enable Q-in-Q tunneling on the interface.

To increase the number of VLANs supported on the interface.

To automatically assign VLAN IDs to untagged frames.

How does a switch handle an untagged frame arriving on an access port?

It drops the frame because untagged frames are not allowed on access ports.

It tags the frame with the native VLAN of the trunk.

It assigns the frame to the VLAN configured for that access port.

It forwards the frame to all VLANs on the switch.

Juniper NetworksCertified Specialist, Service Provider Routing and Switching (JNCIS-SP)

Domain 5Objective 7

Tagging JN0-364 Practice Questions (Page 3)

Part of the Layer 2 Bridging and VLANs domain, which makes up ~11% 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

6concepts

Questions 11–15

11application · medium
A service provider is implementing Q-in-Q tunneling to connect multiple customer sites. Each customer uses VLAN 100 internally. The provider assigns a unique outer VLAN tag to each customer. What is the primary benefit of this approach?
Select an answer first
12application · medium
A network administrator is configuring a trunk link between two Juniper switches. The administrator wants untagged frames on the trunk to be assigned to VLAN 5. Which configuration is required on the trunk interface?
Select an answer first
13foundation · easy
Which statement about the native VLAN is true?
Select an answer first
14foundation · easy
What is the purpose of flexible VLAN tagging on a Junos interface?
Select an answer first
15foundation · easy
How does a switch handle an untagged frame arriving on an access port?
Select an answer first

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