JN0-351参考書内容 & JN0-351日本語関連対策

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Juniper JN0-351 Exam Overview:

Certification Vendor:	Juniper Networks
Exam Name:	Enterprise Routing and Switching, Specialist (JNCIS-ENT)
Exam Number:	JN0-351
Exam Price:	$300 USD
Exam Duration:	90 minutes
Available Languages:	English
Real Exam Qty:	65
Certificate Validity Period:	3 years
Passing Score:	Not specified (Pass/Fail status available immediately)
Related Certifications:	JNCIS-ENT
Exam Format:	Multiple-choice questions
Sample Questions:	Juniper JN0-351 Sample Questions
Exam Way:	Pearson VUE testing centers (In-person)
Pre Condition:	Recommended: JNCIA-Junos certification
Official Syllabus URL:	https://www.juniper.net/us/en/training/certification/tracks/enterprise-routing-switching/jncis-ent.html

>> JN0-351参考書内容 <<

Juniper JN0-351日本語関連対策 & JN0-351テスト参考書

JN0-351試験問題のJuniper3つのバージョンを用意して、クライアントが選択して無料でアップデートできるようにします。異なるバージョンは異なる利点を後押しします。ご購入の前に各バージョンの紹介を注意深くお読みください。そして、JN0-351学習教材の言語は理解しやすく、理論と実践の最新の開発状況に従ってJN0-351試験トレントをコンパイルします。 JN0-351試験の準備に少しの時間しか必要ありません。そのため、JN0-351の質問トレントを購入する価値があります。

Juniper JN0-351 認定試験の出題範囲：

トピック	出題範囲
トピック 1	OSPF: OSPF の概念と運用の詳細について説明し、ルーティング効率を高めるツールを提供します。構成とトラブルシューティングを習得することで、試験と複雑なエンタープライズ環境の両方に対応できるようになります。
トピック 2	プロトコル非依存ルーティング: プロトコル依存性の外にあるルーティングコンポーネントを理解するための重要な領域であるこのトピックは、重要な要素の構成、監視、およびトラブルシューティングに関する専門知識を強化します。
トピック 3	レイヤー 2 スイッチングまたは VLAN: このトピックでは、VLAN の概念と利点を含む、Junos OS 内のレイヤー 2 スイッチング操作についての理解を深めます。経験豊富なネットワークプロフェッショナルは、ネットワークのセグメンテーションと効率化に不可欠な構成、監視、およびトラブルシューティングのテクニックについて理解を深めます。
トピック 4	高可用性: このトピックでは、Junos OS 環境における高可用性の重要性と適用について説明します。これらのコンポーネントの構成と管理に関する知識は、試験の期待に沿って、堅牢で中断のないネットワーク運用を保証するために不可欠です。
トピック 5	レイヤー 2 セキュリティ: このトピックでは、ネットワークセキュリティを強化するためのレイヤー 2 保護メカニズムとファイアウォールフィルターについて説明します。これらの機能の構成、監視、トラブルシューティングに関する実践的なスキルを身に付けることで、受験者は試験の目標と現実の課題に効果的に対処できるようになります。

Juniper Enterprise Routing and Switching, Specialist (JNCIS-ENT) 認定 JN0-351 試験問題 (Q126-Q131):

質問 # 126
Which statement correctly describes the function of a Junos OS "generated route"?

A. It cannot be redistributed into other protocols.
B. It is a static route created manually with a single next hop.
C. It is a route dynamically created based on the existence of one or more contributing routes in the routing table, often used for route summarization.
D. It only applies to OSPF external routes.

正解：C

解説：
A generated route in Junos OS is a type of aggregate-like route that becomes active in the routing table only when at least one contributing (more specific) route is present. Generated routes are commonly used for route summarization, allowing an administrator to advertise a summarized prefix only when the underlying specific routes actually exist.

質問 # 127
Exhibit.

You want to verify prefix information being sent from 10.36.1.4.
Which two statements are correct about the output shown in the exhibit? (Choose two.)

A. The routes displayed have traversed one or more autonomous systems.
B. The output shows routes that were received prior to the application of any BGP import policies.
C. The routes displayed are being learned from an I BGP peer.
D. The output shows routes that are active and rejected by an import policy.

正解：A、B

解説：
Explanation
The output shown in the exhibit is the result of the command "show ip bgp neighbor 10.36.1.4 received-routes", which displays all received routes (both accepted and rejected) from the specified neighbor.
Option A is correct, because the routes displayed have traversed one or more autonomous systems. This can be seen from the AS_PATH attribute, which shows the sequence of AS numbers that the route has passed through. For example, the route 10.0.0.0/8 has an AS_PATH of 65001 65002, which means that it has traversed AS 65001 and AS 65002 before reaching the local router.
Option B is correct, because the output shows routes that were received prior to the application of any BGP import policies. This can be seen from the fact that some routes have a status code of "r", which means that they are rejected by an import policy. The"received-routes" keyword shows the routes coming from a given neighbor before the inbound policy has been applied. To see the routes after the inbound policy has been applied, the "routes" keyword should be used instead.
Option C is incorrect, because the output does not show routes that are active and rejected by an import policy.
The status code of "r" means that the route is rejected by an import policy, but it does not mean that it is active. The status code of ">" means that the route is active and selected as the best path. None of the routes in the output have both ">" and "r" status codes.
Option D is incorrect, because the routes displayed are not being learned from an IBGP peer. An IBGP peer is a BGP neighbor that belongs to the same AS as the local router. The output shows that the neighbor 10.36.1.4 has a remote AS of 65001, which is different from the local AS of 65002. Therefore, the neighbor is an EBGP peer, not an IBGP peer.

質問 # 128
What are two interarea OSPF LSA types? (Choose two.)

A. Type 1 router LSAs
B. Type 3 summary LSAs
C. Type 2 network LSAs
D. Type 4 ASBR summary LSAs

正解：B、D

質問 # 129
What are two reasons for creating multiple areas in OSPF? (Choose two.)

A. to reduce the convergence time
B. to increase the size of the LSDB
C. to reduce LSA flooding across the network
D. to increase the number of adjacencies in the backbone

正解：A、C

解説：
Explanation
Option A is correct. Creating multiple areas in OSPF can help to reduce the convergence time . This is because changes in one area do not affect other areas, so fewer routers need to run the SPF algorithm in response to a change.
Option D is correct. Creating multiple areas in OSPF can help to reduce Link State Advertisement (LSA) flooding across the network. This is because LSAs are not flooded out of their area of origin.

質問 # 130
Which two statements are true about the default VLAN on Juniper switches? (Choose two.)

A. The default VLAN ID is not visible.
B. The default VLAN ID can be changed.
C. The default VLAN ID is not assigned to any interface.
D. The default VLAN is set to a VLAN ID of 1 by default

正解：B、D

解説：
On Juniper switches, the default VLAN is set to a VLAN ID of 1 by default. This means that all interfaces on the switch are members of VLAN until they are specifically assigned to another VLAN. Therefore, option A is correct.
The default VLAN ID can be changed. This allows network administrators to configure the switch to use a different VLAN as the default, if necessary. Therefore, option D is correct.

質問 # 131
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