Cisco 300-425 Online Practice Questions and Exam Preparation

Cisco 300-425 Online Questions & Answers

• Question 31:

  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?

  A. co-channel interference
  B. backhaul latency
  C. hidden node
  D. exposed node
  C. hidden node

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  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

• Question 32:

  Refer to the exhibit.

  

  An enterprise has offices spread around the globe. The APs are connected to different controllers installed in separate datacenters. The IT team wants to allow clients to roam from controllers in group ABC to controllers in group XYZ. Which feature must be incorporated in the design to accomplish this task?

  A. switch peer group
  B. workgroup bridge
  C. mDNS gateway
  D. mobility lists
  D. mobility lists

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  In a Cisco wireless network, when designing for client roaming between access points (APs) that are connected to different controllers, especially in a global enterprise with multiple data centers, it is essential to ensure seamless client mobility. Mobility lists are used in such scenarios to define which controllers are allowed to participate in client roaming. This feature allows the APs connected to controllers within one group (e.g., Group ABC) to recognize and facilitate roaming clients from another group (e.g., Group XYZ). The mobility list is configured on each controller and includes the IP addresses of other controllers that should be considered part of the same mobility domain. When a client roams from an AP on one controller to an AP on another controller, if both controllers are in each other's mobility list, they will establish a mobility tunnel through which they exchange the client's context and security credentials. This ensures that the client can roam without re-authentication and maintains session continuity. References: CCNP Enterprise Wireless Design ENWLSD 300-425 and Implementation ENWLSI 300-430 Official Cert Guide Premium Edition and Practice Test. Designing Cisco Enterprise Wireless Networks (ENWLSD) course and training videos available on Cisco Learning Network and Cisco official website.

• Question 33:

  Which Cisco wireless feature is designed to help balance the client load across multiple APs in a dense environment?

  A. CleanAir
  B. ClientLink
  C. Band Select
  D. Load Balancing
  D. Load Balancing

• Question 34:

  Which wireless survey method validates that the AP placement meets design requirements after installation?

  A. Predictive survey
  B. Passive survey
  C. Post-deployment survey
  D. Virtual survey
  C. Post-deployment survey

• Question 35:

  An engineer is designing a wireless network that will support many different types of wireless clients. When conducting the survey, which client must be used to ensure a consistent experience for all of the wireless clients?

  A. the client that has the highest RF properties
  B. the client that is used most by the company
  C. the client that is used least by the company
  D. the client with the worst RF characteristics
  D. the client with the worst RF characteristics

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  When designing a wireless network for diverse clients, it's crucial to ensure that the network will be reliable for all users. Therefore, surveys should be conducted with the client that has the worst RF characteristics, as indicated in option D. This approach ensures that the network is designed to support even the weakest client, thereby providing a consistent experience for all users. https://documentation.meraki.com/MR/WiFi_Basics_and_Best_Practices/Conducting_Site_ Surveys_with_MR_Access_Points

• Question 36:

  A university lecture hall has high client density. Which antenna type is most appropriate to reduce co-channel interference and improve coverage?

  A. High-gain directional antennas
  B. Omni-directional antennas
  C. Patch or panel directional antennas
  D. Yagi antennas
  C. Patch or panel directional antennas

• Question 37:

  A warehouse has metal shelving that reflects RF signals. Which antenna strategy is best?

  A. Ceiling-mounted omni-directional antennas only
  B. Low-gain directional antennas mounted on the aisles
  C. APs installed randomly throughout the warehouse
  D. High-gain Yagi antennas pointing across shelves
  B. Low-gain directional antennas mounted on the aisles

• Question 38:

  An engineer is designing a high-density WLAN for a 10,000-seat auditorium. The solution must take advantage of human attenuation, as well as the aesthetics of the room. Where must the APs be placed?

  A. on the walls
  B. under the seats
  C. on the ceiling
  D. above the seating areas
  B. under the seats

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  For a high-density WLAN environment like a 10,000-seat auditorium, placing APs under the seats can take advantage of human attenuation and maintain the aesthetics of the room. Human bodies absorb Wi-Fi signals, and placing APs under the seats helps in mitigating this effect by having the signals emanate from among the audience, rather than from above where the signals would have to pass through the audience, resulting in signal degradation1.

• Question 39:

  A community bank has three campus locations and one HQ with the data center operations. Each campus location has four Cisco Catalyst 9120 APs. The data center has a Catalyst 9800 WLC with eight Catalyst 9120 APs. Poor WAN uplinks cause impacted branch AP and wireless client connectivity back to HQ, and each campus location is now planned to have its own EWC controller based on C9120 AP to keep traffic local. This new design must accommodate these requirements:

  1.

  Guest WLAN will be routed locally.

  2.

  Employee WLAN must be authenticated 802.1x PEAP via HQ data center ISE but can pass traffic locally once authenticated.

  3.

  HQ WLC will be the primary backup WLC for each WLC.

  Which design approach should the consulting engineer take?

  A. Two C9120 campus APs must be converted to EWC mode, one for the active controller and the other for standby with HQ WLC set as N+1 backup. The campus guest WLAN will use the guest anchor to HQ WLC for guest VLAN access, and employee WLAN will need the HQ AAA server to be added to EWC and then use that to perform the 802.1x authentication.
  B. One C9120 campus AP must be converted to EWC mode, and the preferred controller is set to that AP with HQ WLC should be paired as mobility peer and configured as N+1 backup. The campus guest WLAN will use local web auth on guest VLAN. The campus employee WLAN will need the guest anchor back to the HQ employee WLAN.
  C. Two C9120 campus APs must be converted to EWC mode, one for the active controller and the other for standby set as N+1 backup. The campus guest WLAN will use local web auth on guest VLAN, and employee WLAN will need the HQ AAA server added to EWC.
  D. One C9120 AP in each campus must be converted to EWC mode, and the preferred controller is set to that AP with HQ WLC set as N+1 backup. The campus guest WLAN will use local web auth on guest VLAN, and employee WLAN will need the HQ AAA server to be added to EWC.
  D. One C9120 AP in each campus must be converted to EWC mode, and the preferred controller is set to that AP with HQ WLC set as N+1 backup. The campus guest WLAN will use local web auth on guest VLAN, and employee WLAN will need the HQ AAA server to be added to EWC.

• Question 40:

  A customer has a Wi-Fi network that is designed to support video over Wi-Fi. The Wi-Fi network has good coverage; however, video multicast traffic is unreliable. Video multicast traffic is reliable on the wired portion of the network. Which performance value indicates an issue with the Wi-Fi multicast traffic?

  A. jitter
  B. packet error rate
  C. throughput
  D. latency
  C. throughput

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  Explanation