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現在の社会の中で優秀な人材が揃てIT人材も多く、競争もとても大きくて、だから多くのIT者はにIT関する試験に参加するIT業界での地位のために奮闘しています。300-420試験はCiscoの一つ重要な認証試験で多くのIT専門スタッフが認証される重要な試験です。
| Certification Vendor: | Cisco |
|---|---|
| Exam Name: | Designing Cisco Enterprise Networks (ENSLD) |
| Exam Number: | 300-420 ENSLD |
| Exam Format: | Simulation-based questions, Multiple choice, Multiple response, Drag and drop |
| Real Exam Qty: | 55-65 |
| Exam Price: | $300 USD |
| Certificate Validity Period: | 3 years |
| Exam Duration: | 90 minutes |
| Related Certifications: | CCIE Enterprise Infrastructure CCNP Enterprise |
| Available Languages: | Simplified Chinese, Japanese, English |
| Recommended Training: | Cisco Official Training (Designing Cisco Enterprise Networks) Cisco Learning Network - ENSLD |
| Exam Registration: | Pearson VUE Cisco Exams Cisco Certification Exam Registration |
| Sample Questions: | Cisco 300-420 Sample Questions |
| Exam Way: | Available via Pearson VUE test centers or online proctored exam |
| Pre Condition: | No formal prerequisites required. Recommended: CCNA-level knowledge and CCNP Enterprise core exam (350-401 ENCOR). |
| Official Syllabus URL: | https://www.cisco.com/c/en/us/training-events/training-certifications/exams/current-list/300-420-ensld.html |
300-420試験はIT業界でのあなたにとって重要です。あなたは300-420試験に悩んでいますか？試験に合格できないことを心配していますか？我々の提供した一番新しくて全面的なCiscoの300-420問題集はあなたのすべての需要を満たすことができます。資格をもらうのはあなたの発展の第一歩で、我々の300-420日本語対策はあなたを助けて試験に合格して資格をもらうことができます。
Cisco 300-420試験は、エンタープライズネットワーク設計の原則、理論、およびベストプラクティスに関する候補者の知識を評価するように設計されています。この試験では、高度なルーティングプロトコル、WANテクノロジー、仮想化、ネットワークオートメーション、セキュリティ、ネットワークサービスなどの幅広いトピックをカバーしています。この試験は、複雑なエンタープライズネットワークの設計、実装、およびトラブルシューティングの候補者のスキルをテストするように設計されています。
質問 # 75
An engineer is upgrading a company's main site to include a connection to a second ISP. The company will receive full Internet routing tables from both ISPs via BGP. The engineer must ensure that the company does not become a transit autonomous system. Which solution should be included in this design?
正解：D
解説：
Section: WAN for Enterprise Networks
質問 # 76 
Refer to the exhibit An engineer is designing an OSPF solution with these requirements:
* NMS server will manage R5 and R6.
* Upon failure of R1. all NMS traffic should be routed through R4.
* Upon failure of the link between R5 and R6. all traffic destined for 10.6.6.6 should be routed through R4 Which solution must the engineer choose?
正解：C
質問 # 77
Which two statements about VRRP advertisements are true? (Choose two.)
正解：A、D
解説：
VRRP advertisements are sent by the current master router and include priority information used by the backup routers to evaluate mastership. In VRRP, the master is the router actively forwarding for the virtual IP address. Backups listen for advertisements; if advertisements stop, the backup with the highest effective priority can become master. This is why the statement that advertisements are sent only from the master router is correct. The advertisement also carries priority information, which is used in election behavior and failover decisions. Standby or backup routers do not normally send VRRP advertisements while a master is active, so option A is incorrect. The default advertisement interval is not three seconds in standard VRRP behavior; three seconds is commonly associated with other first-hop redundancy defaults such as HSRP hellos.
Although timer fields exist in protocol operation, the exam focus here is the master-only advertisement behavior and the priority carried in those advertisements. In campus gateway redundancy design, VRRP advertisements must be protected from loss or filtering because missed advertisements can cause unnecessary master transitions.
質問 # 78
An architect must create a QoS solution for a customer to ensure that a 40 Mbps Internet connection is shared between four subnets based on these requirements:
* Each subnet must receive no less than 10 Mbps of download bandwidth during peak traffic times.
* A subnet can use up to 40 Mbps during nonpeak traffic times if the other subnets are idle.
* Download traffic must never experience a delay.
Which solution must the architect choose?
正解：D
解説：
Selected answer: B
"Download traffic must never experience a delay."
This means we shouldn't be using Shaping at any point (since that puts packets into a buffer and sends them out later on when congestion has been reduced) Also: "Rate-limiting" is a bigger term and under it we have 2 things: "Policing" and "Shaping"
質問 # 79
Refer to the exhibit. An architect must create a stable and scalable EIGRP solution for a customer. The design must:
* conserve bandwidth, memory, and CPU processing
* prevent suboptimal routing
* avoid any unnecessary queries
Which two solutions must the architect select? (Choose two.)
正解：B、D
質問 # 80
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