試験の準備方法-便利なJN0-683日本語版受験参考書試験-素敵なJN0-683科目対策

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Juniper JN0-683 Exam Overview:

Certification Vendor:	Juniper
Exam Name:	Data Center, Professional (JNCIP-DC)
Exam Number:	JN0-683
Exam Format:	Multiple-choice
Exam Duration:	90 minutes
Related Certifications:	Juniper Networks Certified Professional Data Center (JNCIP-DC)
Exam Price:	$400 USD
Passing Score:	Scaled (Approx. 650/1000)
Certificate Validity Period:	3 years
Real Exam Qty:	65
Available Languages:	English
Sample Questions:	Juniper JN0-683 Sample Questions
Exam Way:	Online-proctored or Pearson VUE testing center
Pre Condition:	JNCIS-DC (JN0-481) is recommended/preferred.
Official Syllabus URL:	https://www.juniper.net/us/en/training/certification/tracks/data-center/jncip-dc.html

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JN0-683科目対策、JN0-683認定資格試験問題集

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Juniper JN0-683 認定試験の出題範囲：

トピック	出題範囲
トピック 1	データセンターのマルチテナントとセキュリティ: このセクションでは、シングルテナントおよびマルチテナントデータセンターの設定に関する知識がテストされます。データセンタープロフェッショナルなどの候補者は、共有インフラストラクチャ環境におけるレイヤー 2 レベルとレイヤー 3 レベルの両方でテナントトラフィックの分離を確実に行えるかどうかが評価されます。
トピック 2	データセンター相互接続: データセンターエンジニア向けのこのパートでは、データセンターの相互接続、レイヤー 2 およびレイヤー 3 のストレッチ、ファブリックのステッチ、EVPN シグナル VXLAN を使用したデータセンター間のシームレスな通信について説明します。
トピック 3	VXLAN: この部分では、VXLAN に関する知識、特にデータプレーンがトラフィックフローを処理する一方でコントロールプレーンがデバイス間の通信を管理する方法についての知識が必要です。VXLAN を構成、監視、またはトラブルシューティングする方法に関する知識を示します。
トピック 4	レイヤー 3 ファブリック: このセクションでは、データセンターで IP ベースのネットワークを管理する専門家の知識を測定します。IP ファブリックのアーキテクチャとルーティングをカバーし、候補者がネットワークがスケーラビリティのためにどのように構成されているか、トラフィックが効率的にルーティングされる方法を理解できるようにします。

Juniper Data Center, Professional (JNCIP-DC) 認定 JN0-683 試験問題 (Q115-Q120):

質問 # 115
You are deploying an IP fabric using EBGP and notice that your leaf devices are advertising and receiving all the routes. However, the routes are not installed in the routing table and are marked as hidden.
Which two statements describe how to solve the issue? (Choose two.)

A. You need to configure multipath multiple-as.
B. You need to configure as-override.
C. You need to configure loops 2.
D. You need to configure a next-hop self policy.

正解：A、C

質問 # 116
Exhibit.

Host A is connected to vlan 100 on lead. Host B is connected to vlan 200 on leaf1. Host A and Host B ate unable to communicate. You have reviewed the touting and your hosts have the correct default route (.1) Referring to the exhibit, which two commands will solve the problem? (Choose two.)

A. set routing-options static route 0.0.0.0/0 next-hop 192.168.200.10
B. delete vlans vn200 13-interface irb.200
C. set vlans vn100 13-interface irb.100
D. set interfaces irb unit 100 family inet address 192-168.100.1

正解：A、C

解説：
In the provided network configuration, Host A is in VLAN 100 and Host B is in VLAN 200. The issue arises because these two hosts are unable to communicate, which indicates that either the interfaces are not properly linked to their respective VLANs, or there is a missing static route required for inter-VLAN routing.
Step-by-Step Analysis:
* VLAN Assignment:
* The exhibit shows that irb.200 is correctly associated with VLAN 200 in the configuration.
However, there is no corresponding irb.100 for VLAN 100. Without irb.100, the network lacks the logical interface to handle routing for VLAN 100. Thus, adding irb.100 to VLAN 100 is necessary.
Command to solve this:
set vlans vn100 13-interface irb.100
* Static Route Configuration:
* For inter-VLAN routing to occur, a static route needs to be configured that allows traffic to pass between different subnets (in this case, between VLAN 100 and VLAN 200). The command set routing-options static route 0.0.0.0/0 next-hop 192.168.200.10 would add a static route that directs all traffic from VLAN 100 to the correct gateway (192.168.200.10), which is necessary to route traffic between the two VLANs.
Command to solve this:
set routing-options static route 0.0.0.0/0 next-hop 192.168.200.10
Explanation of Incorrect Options:
* Option A (delete vlans vn200 13-interface irb.200): This would remove the logical interface associated with VLAN 200, which is not desired because we need VLAN 200 to remain active and properly routed.
* Option B (set interfaces irb unit 100 family inet address 192-168.100.1): This command would incorrectly assign an IP address that does not correspond with the subnet of VLAN 100 (192.168.200.1
/24). This could create a misconfiguration, leading to routing issues.
Data Center References:
For a Data Center, proper VLAN management and static routing are crucial for ensuring that different network segments can communicate effectively, especially when dealing with separated subnets or zones like in different VLANs. This aligns with best practices in DCIM (Data Center Infrastructure Management) which stress the importance of proper network configuration to avoid downtime and ensure seamless communication between all critical IT infrastructure components.
Ensuring that the correct interfaces are associated with the correct VLANs and having the proper static routes in place are both essential steps in maintaining a robust and reliable data center network.
This detailed analysis reflects best practices as noted in standard data center design and network configuration guides.

質問 # 117
Click the Exhibit button. Both DC and DC2 are using EVPN-VXLAN technology deployed using an ERB architecture. A server on the Red VLAN must communicate with a server on the Green VLAN. The Blue VLAN in DC and DC2 needs to be the same VLAN.
Which statement is correct?

A. The eight spine devices must be configured as border spine devices; a full mush interconnect must exist between all eight spine devices and the Blue VLAN must be stitched together
B. An interconnect is required between the four SRX Series devices; the Blue VLAN must be stretched and a transit VNI must be added for the Red and Green VLANs.
C. A lean super spine device must be added to DC and DC2; all VLANs must be stretched to the lean super spine device and the lean super spine devices must stitch all the VLANs together.
D. An interconnect is required between four leaf devices in the services blocks; the Red VLAN and the Green VLAN must be stitched and the Blue VLAN must be stretched.

正解：B

解説：
In an EVPN-VXLAN ERB (Edge Routed Bridging) architecture, Layer 2 VLANs can be stretched across data centers using VXLAN, while Layer 3 communication between different VLANs requires routing at the edge. Since the Blue VLAN must remain the same across DC and DC2, it must be stretched using VXLAN. However, inter-VLAN communication (between the Red and Green VLANs) requires Layer 3 routing, which is typically handled by a services block, such as the SRX Series chassis cluster shown in the diagram.
To enable inter-VLAN communication, a transit VNI (VXLAN Network Identifier) must be introduced, allowing the Red and Green VLANs to communicate across the two data centers. The interconnect between the SRX Series devices ensures that Layer 3 routing can be performed while maintaining VXLAN encapsulation between the two sites.

質問 # 118
You need to deploy a new data center. As part of the switch onboarding process, you want to use Juniper Networks' zero-touch provisioning (ZTP) process. Which statement is correct about this scenario?

A. The minimum requirement is a DHCP IP address for the ZTP process to terminate.
B. Junos images on the devices can be upgraded, but not downgraded.
C. The switch's default hostname is the switch's MAC address.
D. Scripts that require execution must end with .sh or .py.

正解：D

解説：
In the Junos ZTP process, any script provided for automatic execution must use a supported format, specifically shell (.sh) or Python (.py). These script types are recognized and executed by the device during the provisioning workflow.

質問 # 119
What are two ways in which an EVPN-signaled VXLAN is different from a multicast-signaled VXLAN? (Choose two.)

A. An EVPN-signaled VXLAN features slower and more complete convergence.
B. An EVPN-signaled VXLAN can perform autodiscovery of VTEPs using BGP.
C. An EVPN-signaled VXLAN is less resource intensive.
D. An EVPN-signaled VXLAN can perform autodiscovery of VTEPs using IS-IS.

正解：B、C

解説：
An EVPN-signaled VXLAN can perform autodiscovery of VTEPs using BGP
EVPN uses BGP control plane to advertise MAC-to-VTEP mappings and perform VTEP autodiscovery, removing the need for multicast in the underlay.
An EVPN-signaled VXLAN is less resource intensive
Unlike multicast VXLAN, EVPN doesn't rely on flooding unknown traffic via multicast groups in the underlay, reducing bandwidth and CPU usage.

質問 # 120
......

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