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Juniper Exam JN0-664 Topic 4 Question 8 Discussion

Actual exam question for Juniper's JN0-664 exam
Question #: 8
Topic #: 4
[All JN0-664 Questions]

Exhibit

Referring to the exhibit, CE-1 is providing NAT services for the hosts at Site 1 and you must provide Internet access for those hosts

Which two statements are correct in this scenario? (Choose two.)

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Suggested Answer: A

BGP add-path is a feature that allows the advertisement of multiple paths through the same peering session for the same prefix without the new paths implicitly replacing any previous paths. This behavior promotes path diversity and reduces multi-exit discriminator (MED) oscillations. BGP add-path is implemented by adding a path identifier to each path in the NLRI. The path identifier can be considered as something similar to a route distinguisher in VPNs, except that a path ID can apply to any address family.Path IDs are unique to a peering session and are generated for each network3. In this question, we have a route reflector (RR) that receives two routes for the same prefix (192.168.0.0/16) from an EBGP neighbor. By default, the RR will only advertise its best path to its clients (R1 and R2). However, we want R1 and R2 to receive both routes from the RR. To achieve this, we need to configure BGP add-path on the RR and enable it to send multiple paths for the same prefix to its clients.


by Yvonne at Jul 09, 2023, 04:42 AM

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Florinda
16 days ago
I've got a brilliant idea - let's just tell the hosts at Site 1 to use Bing instead of Google. That way, they won't need any Internet access at all! Problem solved.
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Nidia
17 days ago
Haha, I like the way you're thinking, Dorothea! Why complicate things when a default route will do the trick? Though I suppose the exam wants us to show our routing expertise. Anyway, I'm going with A and D.
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Dorothea
27 days ago
Hmm, I'm not convinced. Wouldn't it be better to leak a default route from the inet.0 table to the VPN-A.inet.0 table instead? That way the hosts at Site 1 can access the Internet without having to configure a bunch of static routes.
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Fannie
16 days ago
Lettie: Definitely. It's a more efficient way to provide Internet access for those hosts.
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Lettie
17 days ago
User 2: I agree with you. That would make it easier for the hosts at Site 1 to access the Internet.
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Emerson
19 days ago
User 1: I think option C is correct. We should leak a default route from the inet.0 table to the VPN-A.inet.0 table.
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Jenise
2 months ago
Hold on, I'm not sure about that. Shouldn't we also configure a static route for the 203.0.113.1/32 prefix? That's the gateway for the Internet, right?
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Kimberlie
14 days ago
B) You must configure a static route in the main routing instance for the 203.0.113.1/32 prefix that uses the VPN-A.inet.0 table as the next hop.
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Dorathy
23 days ago
A) You must configure a static route in the main routing instance for the 10 1 2.0/24 prefix that uses the VPN-A.inet.0 table as the next hop
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Tabetha
2 months ago
I'm not sure about option C though. Do we really need to configure a RIB group on PE-1 to leak a default route?
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Leatha
2 months ago
I think options A and D are correct. We need to configure a static route for the 10.1.2.0/24 prefix in the main routing instance and also leak that prefix from the VPN-A.inet.0 table to the inet.0 table.
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Lai
20 days ago
Great, so we should configure the static route and RIB group as mentioned in options A and D to ensure proper NAT services for the hosts.
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Lucille
22 days ago
That's correct, both options A and D mention the necessary steps for providing Internet access for the hosts at Site 1.
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Dahlia
28 days ago
Yes, and we also need to leak that prefix from the VPN-A.inet.0 table to the inet.0 table.
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Hortencia
1 months ago
I agree, we definitely need to configure a static route for the 10.1.2.0/24 prefix.
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Lai
2 months ago
I agree with Clarinda. Option A seems like the right choice for providing Internet access for the hosts at Site 1.
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Clarinda
2 months ago
I think option A is correct because we need a static route for the 10.1.2.0/24 prefix.
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Claudia
2 months ago
I'm not sure about option C and D. Can someone explain why we need to configure a RIB group for leaking routes?
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Nobuko
2 months ago
I agree with you, Sylvia. Option B also seems correct as we need a static route for the 203.0.113.1/32 prefix.
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Sylvia
2 months ago
I think option A is correct because we need a static route for the 10.1.2.0/24 prefix.
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