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| Vendor: | Juniper |
|---|---|
| Exam Code: | JN0-664 |
| Exam Name: | Service Provider Routing and Switching, Professional Exam |
| Exam Questions: | 96 |
| Last Updated: | December 21, 2025 |
| Related Certifications: | Juniper Service Provider Routing & Switching Certification |
| Exam Tags: | Professional Juniper networking professionals |
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Exhibit

Which two statements about the output shown in the exhibit are correct? (Choose two.)
The output is from the show l2vpn connections command on a Juniper router. This command is used to verify the status of Layer 2 VPN (L2VPN) pseudowires between Provider Edge (PE) routers.
Breakdown of Key Information:
Instance: vpn-A
This is the L2VPN instance being monitored.
Connection Status (St)
The connection status is 'Up', meaning the pseudowire is operational.
Local Site: CE1-2 (2)
The PE router is attached to a single local site (CE1-2).
Uptime & Connection Flaps
The output shows the last time the connection was up:
Time last up: Apr 11 14:35:27 2020
The '# Up trans' value is 1, meaning this connection has been established once and has not flapped since it was initiated.
VLAN ID Mismatch Check
The legend includes 'VM -- VLAN ID mismatch', but this status is not present in the connection output.
This means there is NO VLAN ID mismatch.
Flow Labels
The Flow Label Transmit is No, and the Flow Label Receive is No.
This means the PE router does NOT have the capability to pop flow labels.
Exhibit

You are attempting to summarize routes from the 203.0.113.128/25 IP block on R8 to AS 64500. You implement the export policy shown in the exhibit and all routes from the routing table stop being advertised.
In this scenario, which two steps would you take to summarize the route in BGP? (Choose two.)
Refer to the exhibit.

Click the Exhibit button.
Which two statements are correct about the class-of-service configuration shown in the exhibit? (Choose two.)
Exhibit

R2 is receiving the same route from R1 and R3. You must ensure that you can load balance traffic for that route.
Referring to the exhibit, which configuration change will allow load balancing?
Which two statements are correct regarding bootstrap messages that are forwarded within a PIM sparse mode domain? (Choose two.)
Bootstrap messages are PIM messages that are used to distribute rendezvous point (RP) information dynamically during an RP election. Bootstrap messages are sent by bootstrap routers (BSRs), which are routers that are elected to perform the RP discovery function for a PIM sparse-mode domain. Bootstrap messages contain information about candidate RPs and their multicast groups, as well as BSR priority and hash mask length. Bootstrap messages are forwarded to all routers within a PIM sparse-mode domain using hop-by-hop flooding.
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