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JN0-363 Service Provider Routing and Switching, Specialist (JNCIS-SP)

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Juniper · JN0-363

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Question 1

Single choice

What is the correct order of BGP attributes for active route selection?

A
next hop -> local preference -> AS path -> MED -> origin
B
next hop -> AS path -> local preference -> origin -> MED
C
next hop -> local preference -> AS path -> origin -> MED
D
next hop -> origin -> local preference -> AS path -> MED

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Correct answerC

Question 2

Single choice

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?

A
The device with the lowest MAC address will be elected as the root bridge.
B
The device with the highest MAC address will be elected as the root bridge.
C
The device with the lowest numerical lo0 IP address will be elected as the root bridge.
D
The device with the highest numerical lo0 IP address will be elected as The bridge.

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Correct answerA

Explanation

Explanation:
https://supportportal.juniper.net/s/article/EX-Identify-the-Root-Bridge-in-a-Spanning-Tree-STP-network?language=en_USTherootbridgeinaspanning-treenetworkisthebridgewiththesmallestorthelowestbridgeID.

Question 3

Single choice

Which BGP attribute Is used to detect touting loops?

A
AS path
B
MED
C
local preference
D
next hop

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Correct answerA

Question 4

Multiple choice

Exhibit

Referring to the exhibit, which two statements are correct? (Choose two.)

A
Prefixes in Level 1 will be redistributed to Level 2.
B
Prefixes in Level 2 will be not redistributed to Level 1.
C
Prefixes in Level 1 will not be redistributed to Level 2.
D
Prefixes in Level 2 will be redistributed to Level 1.

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Correct answersA, B

Explanation

Explanation: By default, IS-IS protocol leaks routing information from a Level 1 area to a Level 2 area.
However, to leak routing information from a Level 2 area to a Level 1 area, an export policy must be explicitly configured.

Question 5

Single choice

Exhibit

Referring to the exhibit, what must be included in the Route1 configuration when establishing an EBGP session with the ISP?

A
A local address must be specified.
B
A local AS must be specified.
C
The BGP session type internal must be specified.
D
The BGP session type external must be specified.

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Correct answerA

Question 6

Multiple choice

Exhibit

You confirm that the R2 and R3 routers are receiving a BGP route to the 203.0.113.0/24 network, but both routers display the route as hidden.
Referring to the exhibit, which two actions solve this problem? (Choose two.)

A
Apply the routing policy on R1 as an import policy to the IBGP group.
B
Configure a routing policy on R1 that sets the next hop for the 203 0.113.0/24 BGP route to the IP address that R1 uses for IBGP peering.
C
Configure a routing policy on R1 that sets the next hop for the 203.0.113.0/24 BGP route to the IP address that R1 uses for EBGP peering.
D
Apply the routing policy on R1 as an export policy to the IBGP group.

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Correct answersB, D

Explanation

Explanation: B. Configure a routing policy on R1 that sets the next hop for the 203 0.113.0/24 BGP route to the IP address that R1 uses for IBGP peering. = configure a "then next-hop self" policy
D. Apply the routing policy on R1 as an export policy to the IBGP group. = export that to ur iBGP peers

Question 7

Single choice

Exhibit

The LSP is not establishing correctly.

Referring to the exhibit, what should you do to solve the problem?

A
Enable traffic engineering for the OSPF protocol.
B
Enable traffic engineering for the IS-IS protocol.
C
Enable traffic engineering for the BGP protocol.
D
Enable traffic engineering for the RSVP protocol.

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Correct answerD

Question 8

Multiple choice

Which two statements are correct about the way that BGP propagates routes by default? (Choose two.)

A
A route learned by EBGP will be re-advertised to IBGP peers.
B
A route learned by IBGP will not be re-advertised lo IBGP peers.
C
A route learned by EBGP will not be re-advertised to IBGP peers.
D
A route learned by IBGP will be re-advertised to IBGP peers.

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Correct answersA, B

Question 9

Single choice

Which statement is correct about IS-IS?

A
IS-IS is a distance vector routing protocol.
B
IS-IS is a path vector routing protocol.
C
IS-IS is a link-state routing protocol.
D
IS-IS is a classful routing protocol.

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Correct answerC

Question 10

Single choice

You have created a routing instance named vr3 that will provide access to Server 2 (10.0.0.2) (or the hosts on the 10.10.10.0/24 network.

Which command would you use to test connectivity between vr3 and Server 2?

A
user@vr3> ping 10.0.0.2 count 5
B
user@vr3> ping 10.0.0.2 count 5 source 10.10.10.1
C
user9router1> ping 10.0.0.2 count 5
D
user@router1> ping 10.0.0.2 routing-instance vr3 count 5

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Correct answerC

Question 11

Single choice

You want to see a detailed list of all established BGP sessions.
In this scenario, what would be a valid command to accomplish this task?

A
show bgp neighbor
B
show bgp summary
C
show rouse receive-protocol bgp <neighbor IP address>
D
show rouse protocol bgp

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Correct answerA

Question 12

Single choice

Exhibit

The routers shown in the exhibit ate configured for segment routing.

In this scenario, what is the adjacency SIO that Router B advertises to Router A?

A
12
B
10.1.1.1
C
10.1.1.2
D
11

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Correct answerB

Question 13

Single choice

How does a Junos device learn about MAC addresses when II is first connected to an Ethernet LAN?

A
The device sends out a network broadcast message asking tor all devices and MAC addresses on the network and stores this information In addition lo the interface from which the response was received.
B
The device learns the destination MAC addresses from traffic in the network and stores this MAC address in addition to the interface from which the traffic was received.
C
The device learns the source MAC addresses from traffic in the network and stores this MAC address in addition to the interface from which the traffic was received.
D
The device sends out a network multicast message asking for all devices and MAC addresses on the network and stores this Information in addition to the interface from which the response was received.

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Correct answerD

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Service Provider Routing and Switching, Specialist (JNCIS-SP)

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