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300-425 Exam Dumps For Certification Exam Preparation
Cisco 300-425 (Designing Cisco Enterprise Wireless Networks) Certification Exam is a professional-level certification that is designed to validate the skills and knowledge of wireless network engineers. It is particularly useful for professionals who are looking to gain expertise in designing enterprise wireless networks using Cisco technologies. Designing Cisco Enterprise Wireless Networks certification exam is a part of the Cisco Certified Design Expert (CCDE) program and is an essential requirement for achieving CCDE certification.
Cisco 300-425 exam, also known as Designing Cisco Enterprise Wireless Networks (ENWLSD), is a certification test that validates the knowledge and skills of candidates in designing and implementing wireless networks in an enterprise environment. 300-425 exam is part of the Cisco Certified Specialist - Enterprise Wireless Design certification, which is designed to help professionals gain expertise in designing and deploying wireless networks for their organization.
NEW QUESTION # 86
A customer is deploying an 802.11ac network on a floor to support approximately 300 wireless devices. Which setting must be changed on Cisco Prime Infrastructure Planning Tool to predict the number of APs the customer needs to service the new floor?
- A. Demand Settings
- B. Add AP Field
- C. Data Coverage Support Margin
- D. 802.11n Protocol Support
Answer: A
NEW QUESTION # 87
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
Answer: B
NEW QUESTION # 88
Which wireless survey method validates that the AP placement meets design requirements after installation?
- A. Passive survey
- B. Post-deployment survey
- C. Predictive survey
- D. Virtual survey
Answer: B
NEW QUESTION # 89
A network engineer is preparing for an office site survey with a height of 2.5 meters. Which three components are recommended to complete the survey? (Choose three.)
- A. Use APs with directional antennas.
- B. Use a battery pack to power APs
- C. Use APs with external antennas.
- D. Use APs with built-in antennas.
- E. Use a drawing of the office space to draw AP and client placements.
- F. Use DoS attack on APs while measuring the throughput.
Answer: B,D,E
Explanation:
For an effective office site survey, it's recommended to: A. Use a battery pack to power APs - This allows for mobility and testing in various locations without relying on fixed power sources. B. Use a drawing of the office space to mark AP and client placements - This helps in planning the optimal locations for AP installation. F. Use APs with built-in antennas - They are commonly used for site surveys as they represent the typical deployment scenario.
The official Cisco ENWLSD 300-425 certification guide will have more details on conducting site surveys.
https://www.cisco.com/c/en/us/td/docs/wireless/technology/mesh/8-4/b_mesh_84/Site_Preparation_and_Planning.html#ID3405
NEW QUESTION # 90
An engineer is working for an enterprise and deployed a Cisco 9800 Series Wireless Controller.
The wireless infrastructure serves the employees and guest users across the company. The engineer must configure the controller to alleviate the sticky client issue in the deployment. Which action resolves the issue?
- A. Enable data RSSI to -90db.
- B. Enable CHDM.
- C. Enable 802.11k.
- D. Enable Optimize Roaming.
Answer: D
Explanation:
The sticky client issue occurs when a wireless client device clings to a suboptimal access point instead of roaming to a better one with a stronger signal. Enabling Optimize Roaming on the Cisco 9800 Series Wireless Controller can alleviate this issue. This feature prompts clients to roam by disassociating them when their signal strength drops below a threshold, encouraging them to seek a better connection.
NEW QUESTION # 91
An engineer must ensure that the wireless network can accomplish fast secure roaming by way of caching keys on the access points. Which key caching mechanism is enabled by default on a Cisco AireOS WLC?
- A. CCKM
- B. 802.11r
- C. OKC
- D. SKC
Answer: C
Explanation:
NEW QUESTION # 92
Which two considerations must a network engineer have when planning for voice over wireless roaming? (Choose two.)
- A. Roaming time increases when using 802.1x + Cisco Centralized Key Manegement.
- B. Roaming occurs when the phone has seen at least four APs.
- C. Roaming with only 802.1x authentication requires full reauthentication.
- D. Roaming occurs when the phone has reached -80 dBs or below.
- E. Full reauthentication introduces gaps in a voice conversation.
Answer: C,E
Explanation:
Voice over wireless roaming is sensitive to delays and interruptions. Full reauthentication, as mentioned in option A, can cause noticeable gaps in a voice conversation because it requires time to re-establish security credentials. This process can interrupt the seamless experience expected in voice communications. Option E is also correct because roaming with only 802.1x authentication indeed requires full reauthentication, which can introduce significant delays affecting voice quality.
https://www.cisco.com/c/en/us/td/docs/solutions/Enterprise/Mobility/vowlan/41dg/vowlan41dgboo k/vowlan_ch5.html
NEW QUESTION # 93
A company wants to replace its existing PBX system with a new VoIP System that will include wireless IP phones. The CIO has concerns about whether the company's existing wireless network can support the new system. Which tool in Cisco Prime can help ensure that the current network will support the new phone system?
- A. Site Calibration
- B. Voice Readiness
- C. Map Editor
- D. Location Readiness
Answer: B
Explanation:
The Voice Readiness tool within Cisco Prime Infrastructure is designed to assess the wireless network's ability to support voice services, including VoIP. It evaluates various factors such as signal strength, noise levels, and coverage to ensure that the wireless network can handle the quality of service requirements needed for voice communications.
NEW QUESTION # 94
APs in a remote office recently have been converted from local mode to FlexConnect to take advantage of the local switching. After the change, remote wireless users report voice quality 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 local mode AP, though the same WLAN configuration is in place. What is the cause of the issue regarding the FlexConnect APs?
- A. They must be in a FlexConnect group to support 802.11r FT.
- B. They must be added into AP groups along with a common RF profile.
- C. They must be added to AP groups to support fast roaming methods.
- D. They do not support 802.11r FT.
Answer: A
Explanation:
FlexConnect APs must be in a FlexConnect group to support 802.11r Fast Transition (FT). This grouping allows for local authentication and key management, which are necessary for fast roaming methods that improve voice quality and wireless IP phone performance during roaming.
The official Cisco FlexConnect configuration guide
Reference: https://www.cisco.com/c/dam/en/us/td/docs/wireless/controller/technotes/80211r-ft/b-80211r-dg.
html
NEW QUESTION # 95 
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. hidden node
- B. co-channel interference
- C. backhaul latency
- D. exposed node
Answer: A
Explanation:
Explanation
https://www.cisco.com/en/US/docs/solutions/Enterprise/Mobility/emob30dg/WiMesh.pdf
NEW QUESTION # 96
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 multicast mode
- B. AP heartbeat timeout
- C. AP fallback
- D. broadcast forwarding
Answer: C
Explanation:
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.
NEW QUESTION # 97
An engineer designs a new wireless network that uses a Cisco Catalyst 9800 Series wireless controller. The controller must be in a DMZ. The internal network is to be at the main on-premises data center of the customer. In addition, the customer wants to establish an EoIP tunnel to a Cisco 5520 WLC that is in a regional force. How must this requirement be incorporated into the design?
- A. Use AirOS code that supports encryption of the control plane on the 5520 WLC.
- B. Use Cisco IOS-XE code that supports encryption of the data plane on the Catalyst 9800 WLC.
- C. Use AirOS code that supports encryption of the data plane on the 5520 WLC.
- D. Use Cisco IOS-XE code that supports encryption of the control plane on the Catalyst 9800 WLC.
Answer: B
Explanation:
When designing a network with a DMZ and an EoIP tunnel, it's important to ensure that the data plane is encrypted to protect the data as it traverses potentially unsecured networks. Cisco IOS-XE on the Catalyst 9800 supports encryption of the data plane, which is essential for this design.
NEW QUESTION # 98
A university has three campus locations and the main data center. Each campus location has a Cisco Catalyst 9800-40 WLC that manages 600 APs. The data center has a Catalyst 9800-40 WLC, which serves as an N+1 backup for each campus WLC. A consulting engineer must install four additional Catalyst 9800-40 WLCs to serve as the high availability SSO pair for each campus, but only two have been approved due to budget restrictions. The new WLCs must be implemented using these requirements:
- Data center WLC must always be available as N+1 backup to either
campus WLC.
- Campus1 WLC must operate with zero downtime.
- In the event of multiple campus outages, the AP priority order is to
support Campus3, Campus2, and then Campus1.
- No APs on campus can be left stranded without a WLC in the event of
an outage.
What design approach must the consulting engineer take?
- A. The Campus1 WLC is the high availability SSO pair. The data center WLC is split into two WLCs, Data Center1 and Data Center2. Campus3 APs have priority 4, Campus2 APs have priority 2, and Campus1 APs have priority 1.
- B. The data center WLC and Campus3 WLC are the high availability SSO pair. Campus1 APs have priority 4, Campus2 APs have priority 2, and Campus3 APs have priority 1.
- C. The data center WLC and Campus1 WLC are the high availability SSO pair. Campus3 APs have priority 4, Campus2 APs have priority 2, and Campus1 APs have priority 1.
- D. The Campus3 WLC is the high availability SSO pair. The data center WLC is split into two WLCs, Data Center1 and Data Center2. Campus3 APs have priority 1, Campus2 APs have priority 2, and Campus1 APs have priority 4.
Answer: C
Explanation:
The only way to meet the requirement for Campus1 to operate with zero downtime is to implement Stateful Switchover (SSO) High Availability. SSO requires two controllers to be physically paired (Active/Standby). Since only two new WLCs were approved, and the budget is restricted to these two plus the existing WLCs, the engineer must pair the existing Campus1 WLC with the existing Data Center WLC to form the SSO pair. This satisfies the zero-downtime requirement for Campus1. The remaining campus WLCs (Campus2 and Campus3) must then be configured with an N+1 roaming redundancy list pointing to the SSO pair as the highest-priority controller in case their local WLC fails.
The AP priorities are configured to dictate which campus's APs take precedence in joining the WLCs when the WLC capacity is exceeded. In the event of multiple campus outages, the APs will fail over to the remaining WLCs based on their priority. The requirement specifies the failover priority should be Campus3, Campus2, and then Campus1. The AP Priority configuration is inversely proportional to the preference, where 1 is the highest preference and 4 is the lowest.
Therefore, the priorities must be set as:
- Campus3 APs: Priority 1 (Highest)
- Campus2 APs: Priority 2
- Campus1 APs: Priority 4 (Lowest, as it is already protected by SSO)
This configuration ensures Campus3 APs are served first by the available capacity on the Data Center/Campus1 SSO pair, followed by Campus2, if both their local WLCs fail.
NEW QUESTION # 99
A wireless engineer is designing a wireless network to support real-time applications over wireless. Which IEEE protocol must the engineer enables on the WLC so that the number of packets that are exchanged between an access point and client are reduced and fast roaming occurs?
- A. 802.11r
- B. 802.11w
- C. 802.11k
- D. 802.11i
Answer: A
Explanation:
The IEEE 802.11r protocol, also known as Fast BSS Transition (FT), is designed to support real-time applications by enabling faster roaming between APs. This protocol reduces the number of packets exchanged during the reauthentication process when a client moves from one AP to another, thus ensuring a more seamless transition and maintaining the quality of service required by real-time applications such as voice and video conferencing. Reference: Designing Cisco Enterprise Wireless Networks (ENWLSD 300-425)
NEW QUESTION # 100
An engineer must perform an assessment of a customer LAN for a future IEEE 802.11 ac Wave 2 wireless deployment. All access switches are Fast Ethernet-capable only, and the wired infrastructure between existing APs and access switches is based on the CAT 6A standard.
Which two actions provide maximum support of Cisco 3800 Series access points? (Choose two)
- A. Ensure that cable distances between access switches and APs are not longer than 100 meters
- B. Ensure that cable distances between access switches and APs are not longer than 55 meters.
- C. Replace the existing switches with gigabit switches with 10 G uplinks.
- D. Replace the existing switches with mGig switches.
- E. Replace the existing wiring infrastructure with the CAT-7E wiring standard.
Answer: A,D
NEW QUESTION # 101
Which two considerations must a network engineer have when planning for voice over wireless roaming?
(Choose two.)
- A. Roaming occurs when the phone has seen at least four APs.
- B. Roaming with only 802.1x authentication requires full reauthentication.
- C. Roaming occurs when the phone has reached -80 dBs or below.
- D. Roaming time increases when using 802.1x + Cisco Centralized Key Management.
- E. Full reauthentication introduces gaps in a voice conversation.
Answer: B,E
Explanation:
Explanation
https://www.cisco.com/c/en/us/td/docs/solutions/Enterprise/Mobility/vowlan/41dg/vowlan41dg-book/vowlan_ch
NEW QUESTION # 102
An engineer has successfully configured high availability and SSO using two Cisco 5508 Wireless LAN Controllers. The engineer can access the Active Primary WLC, but the Secondary Standby WLC is not accessible. Which two methods allow access to the standby unit? (Choose two.)
- A. SSH to the management interface of the primary WLC
- B. SSH to the service port interface
- C. via the console connection
- D. SSH to the redundancy management interface of the primary WLC
- E. SSH to the virtual interface of the secondary WLC
Answer: B,C
Explanation:
NEW QUESTION # 103
A company is upgrading the wireless infrastructure and is in a state of transition. Some parts of the company's building still run on the legacy WLC. The new WLC is not located at the same site as the legacy WLC. The company requires seamless client inter-controller roaming between the new WLC and the legacy WLC, with no disruptions. Both WLCs are separated by firewalls. Which troubleshooting command validates that the mobility control packets between the WLCs can be sent and received?
- A. mapping mobility_peer_management IP address
- B. mapping mobility_peer IP address
- C. debug mobility handoff enable
- D. debug mobility con_g enable
Answer: B
NEW QUESTION # 104
A school deploys a Cisco wireless infrastructure in its classrooms to support a high density of mobile devices.
The network administrator wants to bond channels in groups of two and only allow APs to send 802.11 management frames at 24 MB. What should be included in the design to accomplish this objective?
- A. Set the channel width for 802.11a to 40 MHz and set data rates to 24 MB and Supported.
- B. Set the channel width for 802.11b to 40 MHz and set data rates to 24 MB and Supported.
- C. Set the channel width for 802.11b to 40 MHz and set data rates to 24 MB and Mandatory.
- D. Set the channel width for 802.11a to 40 MHz and set data rates to 24 MB and Mandatory.
Answer: D
Explanation:
To support a high density of mobile devices and bond channels in groups of two, the channel width for
802.11a should be set to 40 MHz. Setting the data rates to 24 MB and Mandatory ensures that only APs can send 802.11 management frames at this rate, which helps in managing the airtime fairness. References: CCNP Enterprise Wireless Design ENWLSD 300-425 and Implementation ENWLSI 300-430 Official Cert Guide.
NEW QUESTION # 105
What is the main advantage of using directional antennas in lecture halls?
- A. Stronger 2.4 GHz performance
- B. Increased AP throughput
- C. Lower power consumption
- D. Reduced co-channel interference and focused coverage
Answer: D
NEW QUESTION # 106
A company is upgrading its wireless infrastructure and is in a state of transition. Some parts of the company's building still run on the legacy WLC. The new WLC is not located at the same site as the legacy WLC. The company requires seamless client inter-controller roaming between the new WLC and the legacy WLC, with no disruptions. Both WLCs are separated by firewalls. Which troubleshooting command validates that the mobility control packets between the WLCs can be sent and received?
- A. mapping mobility_peer_management IP address
- B. debug mobility config enable
- C. debug mobility handoff enable
- D. mapping mobility_peer IP address
Answer: C
Explanation:
The command debug mobility handoff enable is used to validate the mobility control packets between Wireless LAN Controllers (WLCs). This command enables debugging of the handoff process, which is critical for ensuring seamless client roaming between controllers. When WLCs are separated by firewalls, it is essential to confirm that mobility control packets can traverse these firewalls without being dropped or rejected. The debug mobility handoff enable command allows network administrators to monitor the handoff process and troubleshoot any issues that may prevent successful client roaming.
NEW QUESTION # 107
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