Juniper JN0-664 Exam Practice Questions (P. 1)
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Question #1
Click the Exhibit button.

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?

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?
- AConfigure the multipath parameter under the global BGP configuration.
- BApply the prepend policy as an import policy under group R1.
- CConfigure the multipath multiple-as parameter under the global BGP configuration.
- DApply the prepend policy as an import policy under group R3.
Correct Answer:
C
C
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Question #2
Click the Exhibit button.

You are troubleshooting the connection between AS 64496 and AS 64497 and notice that only one of the paths is being used for traffic forwarding.
Referring to the exhibit, which three actions will ensure that R1 is configured properly for load balancing BGP routes? (Choose three.)

You are troubleshooting the connection between AS 64496 and AS 64497 and notice that only one of the paths is being used for traffic forwarding.
Referring to the exhibit, which three actions will ensure that R1 is configured properly for load balancing BGP routes? (Choose three.)
- AVerify that the routing table on R1 has BGP routes for 203.0.113.128/25 with multiple next hops.Most Voted
- BVerify that the multipath option is configured under protocols bgp on both R2 and R3.
- CVerify that there is a load balancing export policy under routing-options for the received BGP routes on R1.Most Voted
- DVerify that the multipath option is configured under protocols bgp on R1.Most Voted
- EVerify that an import load balancing policy exists under protocols bgp for the received BGP routes on R1.
Correct Answer:
ABD
ABD
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Question #3
After a recent power outage, your manager asks you to investigate ways to automatically reduce the impact caused by suboptimal routing in your OSPF and OSPFv3 network after devices reboot.
Which three configuration statements accomplish this task? (Choose three.)
Which three configuration statements accomplish this task? (Choose three.)
- Aset protocols ospf3 realm ipv4-unicast overload timeout 900Most Voted
- Bset protocols ospf overload
- Cset protocols ospf overload timeout 900Most Voted
- Dset protocols ospf3 overload
- Eset protocols ospf3 overload timeout 900Most Voted
Correct Answer:
CDE
CDE

Setting an overload timeout on OSPF and OSPFv3, as seen in options C, D, and E, establishes an automatic revert to optimal routing. Without specifying a timeout, as highlighted in the third user comment, the router could remain sub-optimally operational indefinitely. It’s crucial to configure a timeout period, typically after system stability is confirmed post-reboot, ensuring the network returns to normal routing operations after the temporary overload condition is resolved. This approach effectively limits prolonged impacts on network performance following initial recovery scenarios like power outages.
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Question #4
You are configuring anycast RP for load balancing and redundancy in your PIM-SM domain. You want to share active sources between RPs.
In this scenario, what are two solutions that will accomplish this task? (Choose two.)
In this scenario, what are two solutions that will accomplish this task? (Choose two.)
- AConfigure MSDP on each RP router.Most Voted
- BConfigure anycast PIM with the rp-set statement on each RP router.
- CConfigure anycast PIM with the rp-set statement on each source DR router.Most Voted
- DConfigure MSDP on each source DR router.
Correct Answer:
AB
AB

Configuring MSDP on each RP is crucial because it facilitates the sharing of multicast sources across different multicast domains by allowing RPs to exchange details about active sources—this helps ensure all RPs know about available sources. Moreover, implementing anycast PIM using the rp-set statement on each RP router plays a key role. It not only enables multiple RPs to use the same IP, enhancing load balancing and redundancy but also makes sure they can effectively share active sources. These configurations ensure robust and efficient multicast routing environments with improved fault tolerance and resource distribution.
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Question #5
Which two statements are correct about VPLS tunnels? (Choose two.)
- ABGP-signaled VPLS tunnels require manual provisioning of sites.
- BLDP-signaled VPLS tunnels only support control bit 0.
- CLDP-signaled VPLS tunnels use auto-discovery to provision sites.Most Voted
- DBGP-signaled VPLS tunnels can use either RSVP or LDP between the PE routers.Most Voted
Correct Answer:
CD
CD

The correct selections, C and D, explain fundamental VPLS signaling methods. LDP-signaled VPLS uses auto-discovery, which simplifies the provisioning process across network sites by automatically identifying and connecting them without need for manual configuration. On the other hand, when using BGP signaling for VPLS, both RSVP and LDP can serve as signaling protocols for the provider edge (PE) routers' label-switched paths (LSPs), allowing various types of underlay routing modifications tailored to specific network requirements or preferences. Both options significantly enhance flexibility and efficiency in managing large-scale VPLS deployments.
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