JN0-363 Real Exam Questions and Verified Answers

Question 1 Single choice

Which LSA type does an OSPF ABR use to advertise external routes generated by an NSSAASBR into the backbone?

A
Type 5
B
Type 7
C
Type 3
D
Type 1

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Correct answer: C

Question 2 Single choice

You are bringing a new network online with three IS-IS routers using default Junos election priorities. The routers are configured as Level 2 only IS-IS routers.

Which statement is true about the DIS election in this scenario?

A
The router with the highest MAC address will be elected as the DIS.
B
The router with the highest numerical lo0 IP address will be elected as the DIS.
C
The router with the lowest numerical lo0 IP address will be elected as the DIS.
D
The router with the lowest MAC address will be elected as the DIS.

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Correct answer: A

Explanation

Explanation: A router's priority for becoming the designated router is indicated by an arbitrary number from 0 through 127, which you configure on the IS-IS interface. The router with the highest priority becomes the designated router for the area (Level 1, Level 2, or both), also configured on the IS-IS interface. If routers in the network have the same priority, then the router with the highest MAC address is elected as the designated router.
By default, routers have a priority value of 64.
https://www.juniper.net/documentation/us/en/software/junos/is-is/topics/concept/routing-
protocol-is-is-security-designated-router-understanding.html

Question 3 Multiple choice

Which two interface types are used as tunnel endpoints? (Choose two.)

A
ae
B
ip
C
ge
D
gr

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Correct answers: B, D

Explanation

Explanation: tunnel-end-point name {
ipv4 {
source-address 10.255.1.1;
destination-address 10.255.2.0/25;
}
gre {
key 9;
}
}

https://www.juniper.net/documentation/us/en/software/junos/routing-policy/topics/ref/statement/tunnel-end-point-edit-firewall.html

Question 4 Multiple choice

Which two statements ate correct about the BGP next-hop attribute value? (Choose two.)

A
By default, the next-hop value is changed across IBGP links.
B
By default, the next-hop value is changed across EBGP links.
C
By default, the next-hop value is not changed across IBGP links.
D
By default, the next-hop value is not changed across EBGP links.

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Correct answers: B, C

Explanation

Explanation: By default, the router that originally sourced the route into BGP places its peer address into the attribute field. The next-hop value is then typically changed when the route is transmitted across external gGP (EBGP) links. Internal BGP (IBGP) peers do not alter the next-hop value between themselves.

Question 5 Multiple choice

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.)

A
Devices in AS 65512 will prefer ISP A for traffic destined to the 172.20.21.0/24 network.
B
Devices In AS 65512 will prefer ISP A for traffic destined to the 172.20.0.0/24 network.
C
Devices in AS 65512 will prefer ISP B for traffic destined to the 172.20.21.0/24 network.
D
Devices In AS 65512 will prefer ISP B for traffic destined to the 172.20.0.0/24 network.

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Correct answers: A, C

Question 6 Single choice

You are adding an IPv6 configuration to an Interface on a Junos device.

In this scenario, which statement is correct?

A
The link local address must be manually configured within the fdO0::/8 prefix range.
B
The link local address must be manually configured within the fe80::/10 prefix range.
C
The link local address is automatically created using the MAC address within the fe80::'l0 prefix range.
D
The link local address is automatically created using the MAC address within the fd00::/8 prefix range.

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Correct answer: D

Question 7 Single choice

Click the Exhibit button.

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

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

A
11
B
10.1.1.2
C
10.1.1.1
D
12

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Correct answer: B

Explanation

Explanation: Currently, Junos OS enables you to configure a SPRING node SID for IPv4 and IPv6 address families for each routing instance. This node SID is attached to an IPv4 and IPv6 router ID if the router ID is configured on the loopback interface. Otherwise, the lowest IP address assigned to the loopback interface is chosen as the node SID. Configuring a node SID through policy allows you to choose the loopback address that gets the node SID. If the node SID configuration exists and a policy is defined for node SID selection for the same prefix, then the policy configuration takes precedence.

Question 8 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 answer: A

Explanation

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

Question 9 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 answer: A

Question 10 Multiple choice

You are asked to create connections between routing instances on the same Junos device and route between the connected Instances.

What are two ways to accomplish this task? (Choose two.)

A
Use physical interfaces.
B
Use an IRB interface.
C
Use logical tunnel interfaces.
D
Use loopback interfaces.

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Correct answers: A, C