Cisco 300-425 Online Practice Questions and Exam Preparation

Cisco 300-425 Online Questions & Answers

• Question 201:

  Refer to the exhibit.

  

  A client roams between two APs that are registered to two different controllers, where each controller has an interface in the client subnet. Both controllers are running AireOS. Which scenario explains the client roaming behavior?

  A. Controllers exchange mobility control messages (over UDP port 16666) and the client database entry is moved from the original controller to the new controller.
  B. Controllers do not exchange mobility control messages (over UDP port 16666) and the client database, entry is not moved from the original controller to the new controller.
  C. Controllers exchange mobility control messages (over UDP port 16666) and a new client session is started with the new controller.
  D. Controllers exchange mobility control messages (over UDP port 16666) and the client database entry is tunneled from the original controller to the new controller.
  A. Controllers exchange mobility control messages (over UDP port 16666) and the client database entry is moved from the original controller to the new controller.

  ---

  When a client roams between two access points (APs) that are registered to different controllers with interfaces in the same client subnet, the controllers will exchange mobility control messages over UDP port 16666. This is in accordance with the Designing Cisco Enterprise Wireless Networks (ENWLSD) guidelines. The purpose of these messages is to ensure seamless roaming, where the client's session and authentication state are transferred from one controller to another without requiring re-authentication or re- association by the client. The mobility control messages facilitate the coordinated transfer of the client database entry from the original controller to the new one, maintaining a consistent experience for the user.

• Question 202:

  Guest anchoring is configured for a newly created SSID for your company. It has been noticed that the mobility tunnels are not up, and that MPING fails from your foreign WLC to the anchor WLC. What is the reason that it is failing?

  A. A rule is needed at the firewall to allow UDP port 16666 for communication to work.
  B. A rule is needed at the firewall to allow UDP port 97 for communication to work.
  C. A rule is needed at the firewall to allow TCP port 97 for communication to work.
  D. A rule is needed at the firewall to allow TCP port 16666 for communication to work.
  A. A rule is needed at the firewall to allow UDP port 16666 for communication to work.

  ---

  Guest anchoring requires mobility tunnels to be established between the foreign and anchor WLCs. For these tunnels to function, the firewall must allow specific ports for communication. UDP port 16666 is the port used for mobility traffic in Cisco wireless networks, and if it is not allowed through the firewall, MPING and mobility tunnels will fail. References: CCNP Enterprise Wireless Design ENWLSD 300-425 and Implementation ENWLSI 300-430 Official Cert Guide Premium Edition and Practice

• Question 203:

  Which metric best indicates client experience in a WLAN design?

  A. SNR
  B. RSSI
  C. Data rate
  D. Round-trip latency
  A. SNR

• Question 204:

  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.)

  A. Ensure that channel bonding is enabled on the WLAN.
  B. Ensure that the co-channel interference has not exceeded-85 dBm.
  C. Ensure that the UNII-2 extended channels are enabled on the 802.11a radios.
  D. Ensure that the client is receiving RSSI above the minimum band select RSSI threshold.
  E. Ensure that the client is dual-band capable.
  F. Ensure that the WLAN has 802.11a enabled.
  D. Ensure that the client is receiving RSSI above the minimum band select RSSI threshold.
  E. Ensure that the client is dual-band capable.
  F. Ensure that the WLAN has 802.11a enabled.

  ---

  https://www.cisco.com/c/en/us/td/docs/solutions/Enterprise/Mobility/emob41dg/emob41dg-wrapper/ch3_WLAN.pdf

• Question 205:

  When a wireless network is designed for location services, how many APs must be heard by each location-ready AP at a signal level of -75 dBm or better?

  A. three APs
  B. no more than three APs
  C. two APs
  D. at least four APs
  A. three APs

• Question 206:

  An engineer working for an enterprise deployed multiple Cisco WLCs. A controller that sits in the RandD division is connected through a firewall and is part of the same mobility group. The engineer must ensure that the mobility tunneling is available through the firewall and test it as RandD engineers roam the production floor within their department. How is this requirement met?

  A. mping on UDP port 16666 and eping on Protocol 96 between management ports
  B. mping on UDP port 16666 and eping on Protocol 97 between management ports
  C. mping on UDP port 16667 and eping on Protocol 97 between management ports
  D. mping on UDP port 16667 and eping on Protocol 96 between management ports
  B. mping on UDP port 16666 and eping on Protocol 97 between management ports

  ---

  For mobility tunneling through a firewall in a Cisco wireless network environment, UDP port 16666 must be open along with IP Protocol number `97', which is used for Encapsulating Security Payload (ESP) traffic typically found in IPsec tunnels. By ensuring these ports are mapped correctly through the firewall, RandD engineers can roam within their department while maintaining a secure mobility tunnel. References := (CCNP Enterprise Wireless Design ENWLSD 300-425 and Implementation ENWLSI 300-430 Official Cert Guide Premium Edition and Practice)

• Question 207:

  Users who leave the office with a wireless headset must be able to hand off the voice call with minimal disruption. The engineer drafted four possible floor plans for AP placement:

  1.

  red dots and arrows represent the direction of travel

  2.

  blue dots represent the AP placements

  Which floor plan provides the requested functionality?

  

  A. Option A
  B. Option B
  C. Option C
  D. Option D
  D. Option D

• Question 208:

  What is the recommended signal threshold for designing a wireless network that supports voice over Wi-Fi (VoWi-Fi)?

  A. -72 dBm
  B. -67 dBm
  C. -80 dBm
  D. -50 dBm
  B. -67 dBm

• Question 209:

  What is the main purpose of conducting a post-deployment site survey?

  A. To validate coverage and capacity
  B. To estimate AP placement
  C. To create heatmaps
  D. To document network topology
  A. To validate coverage and capacity

• Question 210:

  Which type of wireless survey involves physically walking the site and measuring signal strength in real time with APs powered on?

  A. Predictive survey
  B. Passive survey
  C. Validation survey
  D. Active survey
  D. Active survey