Free Juniper JN0-680 Exam Dumps Questions & Answers


Exam Code/Number:	JN0-680Join the discussion
Exam Name:	Data Center, Professional
Certification:	Juniper
Free Question Number:	66
Publish Date:	Oct 17, 2026
# of views:	4215
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Total 66 questions

Question 1

You created an IP Fabric based on IBGP. You noticed that ECMP load sharing is not working.
In this scenario, what is the problem?

A.BGP route reflectors only reflect the best route.
B.A route input policy needs to be added on all non-route reflectors to allow ECMP.
C.Each member of the IP Fabric needs a different autonomous system number.
D.ECMP load sharing is only supported on 40GbE and 100GbE interfaces.

Question 2

Your server administrator asks you to preserve the inner VLAN tags of the frames coming from a Layer 2 VXLAN Gateway of the EVPN-enabled segment.
Which two parameters must you add to the configuration to allow the VLAN tag to be passed? (Choose two.)

A.encapsulate-inner-vlan
B.dotlq-tunneling
C.layer2-protocol-tunneling
D.decapsulate-accept-inner-vlan

Question 3

Referring to the exhibit, R1 and R2 are QFX5100s and are acting as VXLAN Layer 2
Gateways for VLAN 100 using PIM-SM signaling.
What will cause R2 to send a (*.G) PIM Join towards the RP?

A.R2 will send a (*.G) PIM Join when it first learns the MAC address of a locally attached host.
B.R2 will send a (*.G) PIM Join when its VLAN 100 configuration is committed.
C.R2 will send a (*.G) PIM Join when it receives broadcast, multicast, or unknown unicast traffic from Host B.
D.R2 will send a (*.G) PIM Join when it receives broadcast, multicast, or unknown unicast traffic from Host A.

Question 4

An EX9200 switch is acting as a Layer 3 VXLAN gateway.
In this scenario. which action will allow you to communicate between two VLANs?

A.Configure a VPLS instance.
B.Configure LAG interfaces to connect the VXLANs.
C.Configure IRB interfaces to connect the VXLANs.
D.Configure L3 physical interfaces to connect the VXLANs.

Question 5

You are attempting to deploy a VCF as shown in the exhibit.
SW-1 and SW-2 are functioning as the spine devices and SW-3 and SW-4 are functioning as the leaf devices.
However, the VCF is not functioning properly.
Which two actions would solve this problem? (Choose two.)

A.Switch the positions of SW-1 and SW-4.
B.Switch the positions of SW-2 and SW-4.
C.Switch the positions of SW-2 and SW-3.
D.Switch the positions of SW-1 and SW-3.