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Prepare for the Juniper Service Provider Routing and Switching, Specialist exam with our extensive collection of questions and answers. These practice Q&A are updated according to the latest syllabus, providing you with the tools needed to review and test your knowledge.
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The questions for JN0-363 were last updated on Mar 2, 2026.
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Exhibit
S Exhibit
LSI1 A AS 65501
ISPB AS 65502
Advertised Prefixes: 172.20.0.0/24 172.20.20.0/24 172.20.21.0/24
\ N
Advertised Prefixes: 172.20.0.0/24
172.20.1.0/24
Referring to the exhibit, which two statements are correct? (Choose two.)
Local preference is a BGP attribute that dictates which path is preferred when multiple paths to the same destination are available. A higher local preference is preferred over a lower one. Since ISP A (AS 65501) is advertising a local preference of 100 and ISP B (AS 65502) is advertising a local preference of 200 to AS 65512, traffic from devices in AS 65512 will prefer the path via ISP B for all networks that ISP B advertises. However, since ISP A advertises the 172.20.21.0/24 network and ISP B does not, traffic for 172.20.21.0/24 will go through ISP A. For the 172.20.0.0/24 network, which both ISPs advertise, devices in AS 65512 will prefer the path via ISP B due to the higher local preference.
Juniper Networks documentation on BGP attributes: BGP Attributes and Policy
Exhibit
You are asked to configure OSPF between routers R1 and R2 using IPv6 addresses.
Which two tasks will accomplish your objective? (Choose two.)
To configure OSPFv3 (the version of OSPF that supports IPv6), you would use the set protocols ospf3 command with the appropriate area and interface. OSPFv3 requires a 32-bit router ID just like OSPFv2, which is typically an IPv4 address. OSPF does not use a 128-bit router ID, so answer D is incorrect.
Juniper Networks documentation on OSPFv3: OSPFv3 Overview
The segment touting SRGB start label Is 10,000 and the SRGB index range is 500.
In this scenario, which two statements are correct? (Choose two.)
The Segment Routing Global Block (SRGB) defines a range of MPLS labels reserved for segment routing. With an SRGB starting label of 10,000 and an index range of 500, the first usable label is indeed 10,001 because label 10,000 is typically reserved and not used for forwarding. The last usable label would be 10,499 because the range includes 500 labels starting from 10,001.
Juniper Networks documentation on Segment Routing: Segment Routing Overview
Exhibit
Referring to the exhibit, where should next-hop-self-policy be applied to alter the next-hop value?
The next-hop-self-policy policy is used to alter the next-hop attribute of BGP routes. When you apply it as an export policy to an external BGP (eBGP) group, it changes the next-hop attribute of the routes being advertised to eBGP neighbors so that the next-hop IP address is the IP address of the router itself. This ensures that the eBGP neighbors use the local router as the next hop to reach these routes.
Juniper Networks Technical Documentation on BGP Policies
You are bringing a new network online with three MX Series devices enabled for STP. No root bridge priority has been configured. Which statement is true in this scenario?
https://supportportal.juniper.net/s/article/EX-Identify-the-Root-Bridge-in-a-Spanning-Tree-STP-network?language=en_US The root bridge in a spanning-tree network is the bridge with the smallest or the lowest bridge ID.
In the absence of a manually configured priority, the Spanning Tree Protocol (STP) elects the root bridge based on the lowest bridge ID, which is a combination of the priority and the MAC address. The device with the lowest MAC address will have the lowest bridge ID and thus be elected as the root bridge.
Juniper Networks Technical Documentation on STP
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