| Exam Code | 300-425 |
| Exam Name | Designing Cisco Enterprise Wireless Networks (ENWLSD) |
| Questions | 286 Questions Answers With Explanation |
| Update Date | July 16,2026 |
| Price |
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An engineer must deploy a wireless network in an open-plan environment that has threeSSIDs using the 5 GHz band set to 40 MHz. Co-channel interference must be reduced.Which two actions must be taken? (Choose two.)
A. Increase the number of SSIDs.
B. Increase channel bonding in the 2.4 GHz band to 40 MHz.
C. Disable band steering.
D. Decrease channel bonding in the 5 GHz band to 20 MHz.
E. Reduce the power of the AP.
A hospital wireless environment was designed with these characteristics:• RF coverage• better than -67 dBm in the 5 GHz spectrum• RRM be used for DCA and TPC in the 2.4 GHz band• RRM be used for DCA and TPC in the 5 GHz bandAfter deployment, why do many of the legacy 802.11b/g devices have difficulty maintainingconnectivity?
A. Excessive co-channel interference in the 2.4 GHz band exists.
B. Excessive overlapping channels in the 2.4 GHz band exists.
C. TPC drastically increases Tx power in the 2.4 GHz band.
D. TPC drastically reduces Tx power in the 2.4 GHz band.
A wireless engineer is designing a wireless network for a warehouse using access pointswith internal antennas. Which two elements have a negative effect on the wireless users?(Choose two.)
A. wireless channels
B. access point height
C. client authentication
D. client authorization
E. absorption
A Cisco controller-based wireless network must support workgroup bridges. The APscon¬gured as workgroup bridges must support wired and wireless clients. The wirelessclients must connect to the spare radio. What is the maximum number of wired clientconnections supported on a workgroup bridge?
A. 20
B. 25
C. 30
D. 35
An engineer added an AP to a deployment after a post-installation site survey. Theengineer then notices an increase in co-channel interference and retransmissions. Whichtwo features help mitigate the issue? (Choose two.)
A. Cisco Compatible Extensions
B. Transmit Power Control
C. Enhanced Distributed Channel Access
D. Coverage Hole Detection
E. Dynamic Channel Assignment
A customer asks an engineer to explain the concept of mobility domains and mobilitygroups. Which statement does the engineer respond with?
A. A mobility group does not constrain the distribution of security context of a client andalso does not constrain AP fail-over between controllers when the WLC are in the samemobility domain.
B. If WLCs are in the same mobility domain, they communicate with each other but, if ananchor WLC is present it must be in the same mobility domain for communication to bepossible.
C. If WLCs are in the same mobility domain, they communicate with each other. Mobilitygroups constrain the distribution of security context of a client and also constrain AP failover between controllers.
D. WLCs do not need to be in the same mobility domain to communicate with each other.Mobility groups constrain the distribution of security context of a client and also constrainAP fail-over between controllers.
During a meeting to gather the requirements for a new Wi-Fi network design, the customerrequests that to connect. Which affect does this have to the wireless network?
A. bigger channel width
B. lower throughput
C. 2.4 GHz signal congestion
D. higher RF re ection
An engineer is configuring a centralized set of controllers for separate facilities. Which twoCisco wireless architectures must be used to ensure flexible sizing of WLAN to VLANmappings? (Choose two.)
A. interface group
B. mobility group
C. AP group
D. controller group
E. RF group
A customer called with a requirement that internal clients must be on different subnetsdepending on the building they are in. All access points are operating in local mode and willnot be modified, and this is a single controller solution. Which design approach creates thedesired result?
A. Create AP groups for each desired location, map the correct VLANs to the internalSSID, and add the access points for that location.
B. Create an SSID place it to the desired VLAN under WLANs and configure 802.1x in ISEto assign the correct VLAN based on the SSID from which the client is authenticating
C. Create FlexConnect groups, place the access points in, and set the correct VLAN toSSID mapping based on location.
D. Create mobility anchors for the SSID and on the controller under the internal SSIDcreate a foreign map to the desired VLAN based on location.
An engineer is setting up the WLC to support a high-density design for a lecture hall. Theengineer must modify the existing high-density RF protocol to obtain a smaller cell size.Also, the clients must connect to the nearest AP using the highest possible data rates.Which setting allows this design?
A. AP load balance
B. client distribution
C. power threshold
D. RX-SOP threshold
An engineer is designing a point-to-multipoint mesh network. Which two AP configurationsmust be completed for a site survey? (Choose two.)
A. MAP hostnames
B. Rx power
C. mesh on 2.4 GHz band
D. bridge group name
E. Tx power
A customer has two Cisco wireless controllers named WLC-A and WLC-B. Each controlleris in a different building on a campus. The WLCs have different Layer 3 interfaces andbroadcast the same SSIDs from their respective APs. Users must remain connected to thesame VLAN andmaintain their IP addresses during roaming from the APs that are attached to WLC-A andWLC B. Which action accomplishes the requirement?
A. Create a mobility group between the two WLCs to allow auto-anchoring.
B. Create an SSO cluster to ensure that client sessions sync between WLCs.
C. Enable 802.11r on each SSID on both WLCs to allow caching of the PMK.
D. Enable AP groups using the same name on both WLCs for each group.
In a warehouse deployment, why is a predictive survey often insufficient?
A. Predictive surveys cannot account for metal racks and variable inventory
B. Warehouses do not require Wi-Fi coverage
C. Predictive surveys are more expensive than passive surveys
D. Warehouses always use only 2.4 GHz Wi-Fi
Why is the 2.4 GHz band generally avoided in high-density enterprise designs?
A. It has more available channels than 5 GHz
B. It supports only 802.11ac
C. It has fewer non-overlapping channels and more interference
D. It requires directional antennas
During a wireless design all APs are mapped to designated controllers in case of a failure.The controllers are located in the same data center but in different racks. An AP failed overto a controller that was not defined on its High Availability tab. The customer does not wantthe AP to move back to its defined Cisco WLCs until they manually intervene. What needsto be addressed in the design?
A. Set AP fallback to enabled.
B. Set AP fallback to disabled.
C. Change the HA SKU secondary unit option.
D. Change the default mobility domain.
A customer uses a Cisco 5520 WLC that is connected via a single 10-GB interface tomanage the wireless network. The wireless networkincludes 500 APs for the campus network. The customer wants to add 300 APs and isconcerned about traffic load and lack of redundancy. The purchase of a second controlleris not an option. Which design approach mitigates the customer concerns?
A. Connect a second 10-GB interface on the WLC and set the port as a secondary port.
B. Connect a second 10-GB interface on the WLC and implement LAG.
C. Implement a vWLC and configure SSO with the WLC.
D. Implement a vWLC and configure N+1 redundancy with the WLC.
Why is Dynamic Frequency Selection (DFS) important in WLAN design?
A. To allow use of radar-detected channels in 2.4 GHz
B. To increase AP transmit power beyond regulations
C. To enable usage of additional 5 GHz channels while avoiding radar interference
D. To reduce co-channel interference on 6 GHz
A high-density wireless network is designed. Which Cisco WLC configuration setting mustbe incorporated in the design to encourage clients to use the 5 GHz spectrum?
A. RRM
B. Cisco centralized key management
C. Band select
D. Load balancing
A wireless network consultant must assess an existing wireless LAN controller. Whichsection must the consultant check before replacing the old APs with APs that are IEEE802.11ac-capable?
A. number of AP licenses
B. controller PSU
C. throughput capacity
D. software version
APs in a remote office recently have been converted from local mode to FlexConnect totake advantage of the local switching. After the change, remote wireless users report voicequality issues and bad quality on wireless IP phones while roaming. A debug is performed,and it is noticed that the 802.11r Fast Transition is not working as expected, like on localmode AP, though the same WLAN configuration is in place. What is the cause of the issueregarding the FlexConnect APs?
A. They do not support 802.11r FT.
B. They must be added into AP groups along with a common RF profile.
C. They must be in a FlexConnect group to support 802.11r FT.
D. They must be added to AP groups to support fast roaming methods.
