近年、当社JuniperのJN0-480テストトレントは好評を博し、献身的に99％の合格率に達しました。 多くの労働者がより高度な自己改善を進めるための強力なツールとして、当社のJN0-480認定Data Center, Specialist (JNCIS-DC)トレーニングは、高度なパフォーマンスと人間中心のテクノロジーに対する情熱を追求し続けています。 さまざまな種類の候補者がJN0-480認定を取得する方法を見つけるために、多くの研究が行われています。 シラバスの変更および理論と実践の最新の進展に応じて、Data Center, Specialist (JNCIS-DC)ガイドトレントを修正およびGoShiken更新します。
Juniper JN0-480認定試験は、データセンターネットワーキングの分野での知識と専門知識を促進しようとしている個人向けに設計された試験です。この認定試験は、Juniper Networks認定スペシャリストデータセンター（JNCIS-DC）認定を取得しようとしている人を対象としています。この認定はグローバルに認識されており、キャリアを昇進させようとしている専門家にとって貴重な資産です。
信頼的なJN0-480テスト対策書一回合格-検証するJN0-480試験合格攻略
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Juniper JN0-480試験は、データセンターテクノロジーにおける専門知識を証明し、Juniper Networks Certified Specialist Data Center（JNCIS-DC）認定を取得したい個人を対象としています。この試験は、Juniper Networksデータセンターのスイッチングおよびルーティングプラットフォームの設定、実装、およびトラブルシューティングにおける候補者の知識とスキルを検証します。JN0-480試験には、仮想化、レイヤー2およびレイヤー3プロトコル、ネットワークセキュリティ、高可用性など、幅広いトピックがカバーされています。
Juniper Data Center, Specialist (JNCIS-DC) 認定 JN0-480 試験問題 (Q65-Q70):
質問 # 65
You are receiving cable, interface, and BGP anomalies from several devices within the data center fabric. In Juniper Apstra. how would you troubleshoot these types of errors?
- A. In the Ul, go to Devices and confirm that agent connectivity is fine.
- B. In the Ul, access the console to the devices and review the interface states.
- C. In the Ul, go to Time Voyager and revert to the last working version.
- D. In the Ul, verify device connectivity by consulting the cable map.
正解：D
解説：
The cable map is a graphical representation of the physical connections between the devices in the data center fabric. It shows the status of the cables, interfaces, and BGP sessions for each device. You can use the cable map to identify and troubleshoot any cable, interface, or BGP anomalies that may occur in the fabric. You can also filter the cable map by device name, device type, device role, device state, cable state, interface state, or BGP state12. References:
* Cable Map Overview
* Cable Map User Guide
質問 # 66
In the Juniper Apstra Ul. which two resource types would be created in the Resources menu? (Choose two.)
- A. DHCP pools
- B. ASN pools
- C. IP pools
- D. bridge domain identifier (BDI)
正解：B、C
解説：
According to the Juniper documentation1, the Resources menu in the Juniper Apstra UI allows you to create and manage various types of resources that are assigned to different elements of the network. Resources include the following types:
* IPv4 (including Host IPv4)
* IPv6 (including Host IPv6)
* ASN (autonomous system number)
* VNI (virtual network identifier)
* VLAN (virtual local area network)
* Integer (used for pool type VLAN in local pools in Freeform blueprints) Therefore, the correct answer is C and D. ASN pools and IP pools are two types of resources that can be created in the Resources menu. Bridge domain identifier (BDI) and DHCP pools are not applicable in this scenario, because they are not part of the resources types supported by Juniper Apstra. References: Resources Introduction | Apstra 4.1 | Juniper Networks
質問 # 67
Which statement is correct about the Juniper Apstra Rendered configuration?
- A. It is rendered from the graph database and stored locally.
- B. It is stored in a NoSQL database and incrementally updated.
- C. It is dynamically tendered at commit time.
- D. It is built at commit time and stored in a MySQL database.
正解：C
解説：
The Juniper Apstra Rendered configuration is the configuration that is generated from the staged blueprint and applied to the devices in the network. The Rendered configuration is dynamically rendered at commit time, which means that it is created on the fly based on the latest changes and validations in the blueprint. The Rendered configuration is not stored in any database, but it can be viewed in the Apstra UI or downloaded as a file. The Rendered configuration reflects the desired state of the network as defined by the intent of the blueprint. The other options are incorrect because:
* A. It is built at commit time and stored in a MySQL database is wrong because the Rendered configuration is not stored in any database, let alone a MySQLdatabase. Apstra uses a graph database to store the network topology and configuration data, not a relational database like MySQL.
* B. It is stored in a NoSQL database and incrementally updated is wrong because the Rendered configuration is not stored in any database, let alone a NoSQL database. Apstra uses a graph database to store the network topology and configuration data, not a non-relational database like NoSQL. The Rendered configuration is not incrementally updated, but dynamically rendered at commit time.
* D. It is rendered from the graph database and stored locally is wrong because the Rendered configuration is not rendered from the graph database, but from the staged blueprint. The graph database stores the network topology and configuration data, but the Rendered configuration is generated from the blueprint, which is a logical representation of the network design and intent. The Rendered configuration is not stored locally, but it can be downloaded as a file if needed. References:
* Config Rendering in Juniper Apstra
* AOS Device Configuration Lifecycle
* Configlets (Datacenter Design)
質問 # 68
What is the purpose of using a routing zone inside Juniper Apstra software?
- A. A routing zone is defined to secure the routing protocols.
- B. A routing zone is used to enable L4-L7 inspection inside the fabric.
- C. A routing zone is used to enable the communication between two VNIs within a VRF.
- D. A routing zone defined at the Apstra manager level requires firewalls to be deployed.
正解：C
解説：
According to the Juniper documentation1, a routing zone is an L3 domain, the unit of tenancy in multi-tenant networks. You create routing zones for tenants to isolate their IP traffic from one another, thus enabling tenants to re-use IP subnets. In addition to being in its own VRF, each routing zone can be assigned its own DHCP relay server and external system connections. You can create one or more virtual networks within a routing zone, which means a tenant can stretch its L2 applications across multiple racks within its routing zone. For virtual networks with Layer 3 SVI, the SVI is associated with a Virtual Routing and Forwarding (VRF) instance for each routing zone isolating the virtual network SVI from other virtual network SVIs in other routing zones. Therefore, the correct answer is D. A routing zone is used to enable the communication between two VNIs within a VRF. A routing zone is not used for L4-L7 inspection, securing routing protocols, or requiring firewalls. Those are not the purposes of a routing zone in Juniper Apstra software. References: Routing Zones
質問 # 69
What is the purpose of an interface map in Juniper Apstra?
- A. An interface map specifies the number of ports and the port speeds of a logical device
- B. An interface map specifies the connections between racks in a template.
- C. An interface map associates a logical device with a device profile.
- D. An interface map specifies a connection between the interfaces of two devices.
正解：D
解説：
According to the Juniper documentation1, an interface map is a configuration template that maps interfaces between logical devices and physical hardware devices (represented with device profiles) while adhering to vendor specifications. An interface map specifies a connection between the interfaces of two devices, such as a leaf and a spine, a leaf and a server, or a leaf and an external gateway. An interface map can also specify port transformations, such as breaking out a 40 GbE port into four 10 GbE ports, or disabling unused ports. An interface map can be used to achieve the intended network configuration rendering and to enable features such as LAG, ESI-LAG, or MLAG. Therefore, the correct answer is B. An interface map specifies a connection between the interfaces of two devices. References: Interface Maps (Datacenter Design)
質問 # 70
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JN0-480試験合格攻略: https://www.goshiken.com/Juniper/JN0-480-mondaishu.html