Cisco 300-425 Online Practice Questions and Exam Preparation

Cisco 300-425 Online Questions & Answers

• Question 251:

  What causes the most signal attenuation, based on the wireless design tools?

  A. cinder block wall
  B. metal door
  C. glass wall
  D. office window
  B. metal door

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  Metal doors cause the most signal attenuation in wireless design due to the properties of metal reflecting and absorbing radio waves, which can significantly reduce signal strength. Unlike materials such as cinder block or glass, metal can create a complete barrier for the signal, leading to a phenomenon known as "Faraday Cage" effect, where the metallic enclosure blocks electromagnetic fields. References: Designing Cisco Enterprise Wireless Networks (ENWLSD 300-425)

• Question 252:

  An engineer must optimize client roaming after noticing that clients in the environment are not roaming as expected. Upon reviewing an over-the-air packet capture, the engineer sees that the AP is sending a BSS Transition Management query to the client, which causes it to roam. The disassociation imminent feature is not enabled on the WLAN. What is the cause of the issue?

  A. Low RSSI check is enabled.
  B. Fast Transition is disabled.
  C. Band Select is enabled.
  D. Optimized roaming is enabled.
  D. Optimized roaming is enabled.

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  Optimized roaming is a feature that helps manage the client's roaming behavior by disassociating clients with a signal strength below a predefined threshold. This feature is designed to prevent clients from sticking to an AP with poor connectivity, which can lead to suboptimal performance. If the BSS Transition Management query is causing the client to roam and the disassociation imminent feature is not enabled, it indicates that optimized roaming is likely enabled, prompting the client to seek a better AP connection.

• Question 253:

  A wireless engineer must design a backhaul link. The engineer has a mesh access point that has a wired connection back to the infrastructure. What must be changed in the AP role before a change is made in the AP mode?

  A. monitor
  B. RAP
  C. bridge
  D. local
  B. RAP

• Question 254:

  An enterprise has moved most services to the cloud, including email applications and real-time communication. Which feature must be enabled on the wireless network to improve the user experience?

  A. QoS
  B. Radio management
  C. Interference mitigation
  D. Fast secure roaming
  A. QoS

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  Quality of Service (QoS) is essential for prioritizing cloud services like email and real-time communication. It helps in managing bandwidth allocation and ensuring that critical applications receive the necessary resources for optimal performance. https://community.cisco.com/t5/wireless-mobility-documents/what-is-cckm-and-how-does- it-affect-fast-and-secure-roaming/ta-p/3130421

• Question 255:

  An engineer is working on a wireless refresh for a customer and identified that the existing WLCs have RTU licenses installed. Which two WLC models can reuse the licenses? (Choose two.)

  A. 5520
  B. vWLC
  C. 3504
  D. 5508
  E. 2504
  A. 5520
  C. 3504

• Question 256:

  An engineer is conducting a Layer 2 site survey. Which type of client must the engineer match to the survey?

  A. best client available
  B. phone client
  C. normal client
  D. worst client available
  D. worst client available

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  When conducting a Layer 2 site survey, it is recommended to match the survey to the worst client available. This ensures that the wireless network is designed to provide adequate coverage and performance even for the clients with the poorest capabilities, thereby ensuring a consistent user experience for all devices2. https://www.cisco.com/c/en/us/support/docs/wireless/5500-series-wireless-controllers/116057-site-survey-guidelines-wlan-00.html

• Question 257:

  Refer to the exhibit

  

  A wireless consultant is performing an onsite survey using AirMagnet Survey PRO. What must be configured on the floor map so that the results appear properly?

  A. Show details of the user density.
  B. Calibrate the dimensions.
  C. Display details of the desk numbers
  D. Add inter-floor bleed
  B. Calibrate the dimensions.

• Question 258:

  Which two statements are correct about 5 GHz WLAN compared to 2.4 GHz? (Choose two.)

  A. 5 GHz has more non-overlapping channels.
  B. 5 GHz provides better coverage through walls.
  C. 5 GHz is less prone to interference.
  D. 5 GHz supports higher throughput.
  E. 5 GHz requires fewer APs for coverage.
  A. 5 GHz has more non-overlapping channels.
  C. 5 GHz is less prone to interference.
  D. 5 GHz supports higher throughput.

• Question 259:

  How does the environment affect the wireless network when conducting a site survey in a multifloor building?

  A. Elevator shafts block RF signals.
  B. Stocked supply rooms cause noise floor.
  C. Stocked supply rooms cause reflection.
  D. Elevator shafts cause signal scattering.
  A. Elevator shafts block RF signals.

• Question 260:

  A customer with two Cisco 5520 WLCs that work as a primary and secondary had some switching issues and the primary controller lost connectivity. Immediately all APs went to discovery and joined the secondary controller. After recovering from the issue, the primary controller is online, but no APs return to it. All APs remain in the secondary controller. Which setting advises the APs to return to their primary controller?

  A. AP fallback
  B. AP multicast mode
  C. AP heartbeat timeout
  D. broadcast forwarding
  A. AP fallback

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  The AP fallback feature is designed to allow access points to return to their primary controller after they have connected to a secondary controller due to a failure or connectivity issue with the primary. This setting ensures that once the primary controller is back online, the APs will recognize it and re-establish their connection as per the original network design. This feature is crucial for maintaining the intended controller hierarchy and ensuring seamless wireless network operation.