正真正銘のJN0-363問題集には100%合格率練習テスト問題集 [Q119-Q141]

正真正銘のJN0-363問題集には100%合格率練習テスト問題集

Juniper JN0-363リアル試験問題保証付き更新された問題集

Juniper JN0-363試験は、サービスプロバイダーのルーティングと切り替えに焦点を当てた専門レベルの認定試験です。この試験は、Juniper Networks Service Providerのルーティングとスイッチングプラットフォームの設計、構成、およびトラブルシューティングのスキルを向上させたいネットワーキング専門家向けに設計されています。 JN0-363試験は、サービスプロバイダーネットワークを専門とするネットワーキング専門家にとって最も求められている認定の1つです。

質問 # 119
Which two protocols are capable of distributing labels for segment routing? (Choose two.)

A. LDP
B. IS-IS
C. RSVP
D. OSPF

正解：B、D

質問 # 120
Click the Exhibit button. Given the OSPF topology shown in the exhibit, how many unique link-state databases are present in the network?

A. 0
B. 1
C. 2
D. 3

正解：B

質問 # 121
Click the Exhibit button. What does IS-IS/18 mean in the output displayed in the exhibit?

A. These routes are internal Level 2 routes.
B. These routes are external Level 1 routes.
C. These routes are external Level 2 routes.
D. These routes are internal Level 1 routes.

正解：A

質問 # 122
Click the Exhibit button.

Referring to the exhibit, you have an established RSVP LSP between R1 and R4 when you experience a link failure between R2 and R3.
Which two statements are correct? (Choose two.)

A. R3 sends a PathTear message downstream to R4 signaling the link failure.
B. R2 sends a PathTear message upstream to R1 signaling the link failure.
C. R3 sends a ResvTear message downstream to R4 signaling the link failure.
D. R2 sends a ResvTear message upstream to R1 signaling the link failure.

正解：C、D

解説：
Upon a link failure in an RSVP-signaled LSP, the router upstream of the failure (R2) sends a PathTear message upstream to the ingress router (R1), and the router downstream of the failure (R3) sends a ResvTear message downstream to the egress router (R4). These messages signal the failure and initiate tear down of the LSP state in the respective directions.References:
RSVP-TE Overview, Juniper Networks Documentation
Understanding RSVP Signal Failures, Juniper Networks Documentation

質問 # 123
You want to enable a routing platform with redundant REs to switch from a primary RE to a backup RE without alerting peer nodes. Which two technologies would you use to satisfy this requirement? (Choose two.)

A. ISSU
B. NSR
C. VRRP
D. GRES

正解：B、C

質問 # 124
Which two routing protocols make use of a designated router, or pseudo node, to represent a broadcast network? (Choose two.)

A. BGP
B. IS-IS
C. MPLS
D. OSPF

正解：B、D

質問 # 125
Click the Exhibit button.

Referring to the exhibit, which statement is correct?

A. R2 is an ASBR
B. R1 is a backbone router
C. R1 is an ABR
D. R2 is an ABR

正解：D

質問 # 126
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 MAC address will be elected as the DIS.
D. The router with the lowest numerical lo0 IP address will be elected as the DIS.

正解：A

解説：
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

質問 # 127
Click the Exhibit.

You have configured the IBGP group shown in the exhibit. However, committing your configuration fails.
Which parameter should you add to the IBGP group configuration to correct the problem?

A. As -override
B. Type external
C. Export <policy name>
D. Type internal

正解：D

質問 # 128
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 MAC address will be elected as the DIS.
D. The router with the lowest numerical lo0 IP address will be elected as the DIS.

正解：A

質問 # 129
An OSPF router does not have a router ID configured.
In this scenario, which statement is correct about the router ID?

A. The Junos OS will use the IP address assigned to the interface with the lowest MAC address.
B. The Junos OS will use the IP address assigned to the loopback interface for the router ID.
C. The Junos OS will use the IP address assigned to the Interface with the highest priority.
D. A router ID will not be assigned until it is manually configured.

正解：B

解説：
The router identifier is used by BGP and OSPF to identify the routing device from which a packet originated.
The router identifier usually is the IP address of the local routing device. If you do not configure a router identifier, the IP address of the first interface to come online is used. This is usually the loopback interface.
Otherwise, the first hardware interface with an IP address is used
In OSPF, if a router ID is not manually configured, Junos OS will automatically select the router ID based on the highest IP address of any of the router's loopback interfaces. If no loopback interface exists, the highest IP address of any active interface will be used. Therefore, answer C is correct.
References:
Juniper Networks documentation on OSPF: OSPF Overview

質問 # 130
Click the Exhibit button.

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

A. The local-address statement is required for the BGP session to establish correctly
B. The configuration is for an external BGP session
C. The configuration is for an internal BGP session
D. The multi-hop statement is required for the BGP session to establish correctly

正解：A、C

質問 # 131
Exhibit

Referring to the exhibit, how do you verify the status of the tunnel from R1?

A. Issue the ping 172.20.111.10 source 198.51.100.1 command.
B. Issue the ping 172.20.111.10 source 172.20.110.1 command.
C. Issue the ping 172.20. Ill. 10 command.
D. Issue the ping 172.20.iii.io source 203.0.113.2 command.

正解：D

質問 # 132
Referring to the exhibit, you have an established RSVP LSP between R1 and R4 when you experience a link failure between R2 and R3. Which two statements are correct? (Choose two.)

A. R2 sends a PathTear message upstream to R1 signaling the link failure.
B. R3 sends a ResvTear message downstream to R4 signaling the link failure.
C. R2 sends a ResvTear message upstream to R1 signaling the link failure.
D. R3 sends a PathTear message downstream to R4 signaling the link failure.

正解：C、D

質問 # 133
You want to disable MAC learning only for interface ge-0/0/0.0 on an MX Series device.
Which syntax will accomplish this task?

正解：D

解説：
https://www.juniper.net/documentation/en_US/junos/topics/task/configuration/layer-2-services-mac-bridge-domain-or-logical-interface-disabling-learning-for.html

質問 # 134
You have just configured IPv6 in your network. A packet arrives on your router that exceeds the MTU size. How will an IPv6 router respond?

A. The fragment offset is referenced and the packet is fragmented.
B. The packet is fragmented based on extension headers.
C. The packet is dropped.
D. The packet is kept intact and not fragmented.

正解：C

質問 # 135
Exhibit

You are asked to configure the OSPF environment to prevent the DRother routers from participating in DR/BDR election.
Referring to the exhibit, which command will accomplish this task?

A. set protocols ospf area 0.0.0.0 interface ge-0/0/1 priority 0
B. set protocols ospf area 0.0.0.0 interface ge-0/0/1 interface-type p2p
C. set protocols ospf area 0.0.0.0 interface ge-0/0/1 interface-type nbma
D. set protocols ospf area 0.0.0.0 interface ge-0/0/l priority 255

正解：A

解説：
To prevent a router from participating in the OSPF designated router (DR) and backup designated router (BDR) election process, you set the OSPF priority to 0 on the interfaces of that router. This tells OSPF that the router on those interfaces is not to be considered for election as either DR or BDR, effectively making them DRother routers. The exhibit indicates that this is the desired configuration, and therefore the correct command to issue on the Juniper device would be to set the priority to 0 on the relevant interfaces.

質問 # 136
Referring to the exhibit, which two statements are correct? (Choose two.)

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

正解：B、D

質問 # 137
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 highest numerical lo0 IP address will be elected as The bridge.
B. The device with the lowest numerical lo0 IP address will be elected as the root bridge.
C. The device with the lowest MAC address will be elected as the root bridge.
D. The device with the highest MAC address will be elected as the root bridge.

正解：C

解説：
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.

質問 # 138
Which two statements are correct about the behavior of IS-IS metrics? (Choose two.)

A. By default, the metric of an interface is calculated based on the speed of the interface.
B. By default, all physical interfaces have a metric of 10.
C. Wide metrics enable an interface to advertise different metrics at Level 1 and Level 2.
D. Wide metrics enable interfaces to advertise metrics larger than 63.

正解：C、D

解説：
Wide metrics in IS-IS allow for a larger metric value than what is available with narrow metrics, which supports a maximum of 63. Wide metrics also enable an interface to advertise different metrics for Level 1 and Level 2, allowing for more flexible routing policies and greater scalability in large networks.References:
IS-IS Wide Metrics, Juniper Networks Documentation
Configuring IS-IS Wide Metrics, Juniper Networks Documentation

質問 # 139
You notice that the RID of your router is being taken from the address of your management interface.
What could cause this scenario?

A. A suitable loopback address was not configured on the router.
B. The loopback address was configured under [edit routing-options].
C. The loopback address was not configured under [edit protocols ospf].
D. The loopback address was configured with a /32 address.

正解：A

質問 # 140
Referring to the exhibit, which two statements are correct? (Choose two.)

A. The ge-0/0'1.0 Interface is configured as passive.
B. The R2 device is an ABR.
C. Junos OS default OSPF hello timers and dead intervals are used on all interfaces.
D. The OSPF Interfaces are configured as point-to-point.

正解：A、C

質問 # 141
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