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| Certification Vendor: | Cisco |
|---|---|
| Exam Name: | Designing Cisco Enterprise Wireless Networks (ENWLSI) |
| Exam Number: | 300-425 ENWLSI |
| Exam Price: | USD 300 (varies by region) |
| Related Certifications: | CCIE Enterprise Infrastructure CCNP Enterprise |
| Exam Format: | Multiple choice, Simulation-based questions, Multiple answer, Drag and drop |
| Certificate Validity Period: | 3 years |
| Available Languages: | English, Japanese |
| Exam Duration: | 90 minutes |
| Real Exam Qty: | 55-65 |
| Recommended Training: | Cisco Learning Network - ENWLSI Cisco U. Training Courses |
| Exam Registration: | Pearson VUE Cisco Exams Cisco Certification Exam Registration |
| Sample Questions: | Cisco 300-425 Sample Questions |
| Exam Way: | Computer-based exam delivered via Pearson VUE testing centers or online proctored exam. |
| Pre Condition: | No formal prerequisites, but Cisco recommends CCNA-level knowledge or equivalent experience with enterprise networking. |
| Official Syllabus URL: | https://www.cisco.com/c/en/us/training-events/training-certifications/exams/current-list/300-425-enwlsi.html |
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Cisco 300-425試験は、Cisco Certified Design Expert（CCDE）認定プログラムの一部です。この認定プログラムは、ネットワーク設計とアーキテクチャを専門とするIT専門家向けに設計されています。 CCDE認証プログラムは、IT業界で最も権威のある認証プログラムの1つと考えられています。 Cisco 300-425試験は、CCDE認定プログラムに必要な試験であり、この試験に合格して、ITプロフェッショナルがエンタープライズレベルの組織向けのワイヤレスネットワークを設計および実装するために必要な知識とスキルを持っていることが示されています。
質問 # 109
Refer to the exhibit.
Which two statements about Cisco Prime Infrastructure are true? (Choose two.)
正解：A、C
解説：
質問 # 110
A customer has noticed that Client Band Select is enabled and no clients are utilizing the 5 GHz band. Which three parameters must be met to ensure that wireless clients use the 5 GHz band? (Choose three.)
正解：C、D、F
解説：
Explanation
https://www.cisco.com/c/en/us/td/docs/solutions/Enterprise/Mobility/emob41dg/emob41dg-wrapper/ch3_WLAN
質問 # 111 
Refer to the exhibit. During a post Mesh deployment survey, an engineer notices that frame collisions occur when MAP-1 and MAP-3 talk to RAP-2 Which type of issue does the engineer need to address in the design?
正解：B
解説：
The issue described is indicative of a hidden node problem, where MAP-1 and MAP-3 cannot hear each other's transmissions but can both communicate with RAP-2. This leads to frame collisions as both MAPs may attempt to transmit at the same time, unaware of the other's actions. The design needs to address this by implementing mechanisms such as RTS/CTS or adjusting the placement of the APs to avoid this issue.
https://www.cisco.com/en/US/docs/solutions/Enterprise/Mobility/emob30dg/WiMesh.pdf
質問 # 112
Refer to the exhibit.
What is the main reason why the Wi-Fi design engineer took a different approach than installing the APs in the offices, even though that installation provides better coverage?
正解：A
解説：
https://www.cisco.com/en/US/docs/solutions/Enterprise/Mobility/emob30dg/RFDesign.html#wp1000551
質問 # 113
What are the three RSTP port states? (Choose three.)
正解：B、C、D
解説：
Rapid Spanning Tree Protocol (RSTP) uses only three port states: discarding, learning, and forwarding. The learning and forwarding states are the same as the original STP standard, but the discarding state performs the functions originally performed in the disabled, blocking, and listening STP states.
With STP, you can safely assume that a listening port is either designated or root, and is on its way to the forwarding state. Unfortunately, once a port is in the forwarding state, there is no way to tell whether the port is root or designated. There is no difference in the operation of a port in blocking state and a port in listening state, since they both discard frames and do not learn MAC addresses. The real difference is in the role the spanning tree assigns to the port. RSTP decouples the role and the state of a port.
With RSTP, a role is assigned to a port. The root port and designated port roles are the same as with STP, while the blocking port role is split into the backup and alternative port roles. The Spanning Tree Algorithm (STA) determines the role of a port based on Bridge Protocol Data Units (BPDUs). The RSTP roles can be defined as follows:
Root port: The port receiving the best BPDU on a bridge (lowest-cost path to the root bridge) is the root port.
Designated port: The port that has the best path to the root bridge on a given segment is the designated port.
The bridges connected to a given segment listen to each other's BPDUs and agree on the bridge sending the best BPDU as the designated bridge for the segment. The corresponding port on that bridge is the designated port.
Alternative port: An alternative port is a port blocked by receiving more useful BPDUs from another bridge. It becomes the root port if the active port fails.
Backup port: A backup port is a port blocked by receiving more useful BPDUs originating from the same bridge. It becomes the designated port if the existing designated port fails.
Ports on the switch can also be classified as edge ports and non-edge ports. Access ports or edge ports are those that attach to devices such as workstations or printers. Non-edge ports are those that connect to other switches. If a non-edge port transitions to a forwarding state, a TC BPDU will be generated. On the other hand, when an edge ports transitions to the forwarding state, such as after a computer boots up or a device is connected to the port, no TC BPDU is generated.
Objective:
Layer 2 Technologies
Sub-Objective:
Configure and verify spanning tree
References:
Cisco > Support > Technology Support > LAN Switching > Spanning Tree Protocol > Technology Information > Technology White Paper > Understanding Rapid Spanning Tree Protocol (802.1w)
質問 # 114
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