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Enterprise Routing and Switchings: 65 (JN0-648) - Juniper Exam Questions

Last updated on June 20, 2026

97% Exam Compliance
90 Total Questions
1
Question
Exhibit. You are troubleshooting a route problem in the topology shown in the exhibit. The 10.30.0 0/24 route is not reachable from the R3 router. What would cause this problem?
Options
A R4 is not advertising the 10.30.0.0/24 route to R3
B R3 does not have an OSPF route for 10.30.0.0/24
C R3 does not have a route to the BGP next hop of 10.30.0.0/24
D R3 does not have an established BGP session with R4.
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2
Question
You are currently using VLAN IDs 2 through 300 within your Layer 2 domain and you need to configure VSTP to prevent loops You must ensure that all VL ANs are loop free. In this scenario, which statement is correct?
Options
A You must ensure that the VLANs are balanced between two different root bridges.
B You must enable all VLANs, 2 through 300, under the VSTP configuration
C You must enable RSTP to account for all VLANs.
D You must ensure that the bridge priority is set to the lowest value on all switches in the Layer 2 domain.
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3
Question
Exhibit.

Exhibit

Referring to the exhibit, which two statements are true with regards to deploying CoS? (Choose two.)
Select 2
Options
A You should apply MF classifiers on the LAN-facing interfaces of the routers
B You should apply MF classifiers on the point-to-point interfaces of the routers
C You should apply BA classifiers on the point-to point interfaces of the routers.
D You should apply BA classifiers on the LAN-facing interfaces of the routers
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4
Question
Click the Exhibit button.

Which well-known community needs to be used to restrict 10.0.0.0/8 from being advertised to AS 2?
Options
A no-advertise
B no-export
C no-publish
D no-export-subconfed
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5
Question
Exhibit.

Exhibit

Exhibit

Referring to the exhibit, there are multiple ASM groups in the 224 0 0.0/4 range Which configuration change is needed to ensure R1 is always the RP for group 224.224.1.1?
Options
A Configure R1 with a higher local RP address
B Ensure R1 has a more specific group range
C Increase the priority on R1 to higher than R2
D Set the priority on R1 to zero
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