2022 Best 300-425 Exam Preparation Material with New Dumps Questions

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NEW QUESTION 13
Clustering Cisco WLCs into a single RF group enables the RRM algorithms to scale beyond the capabilities of a single Cisco WLC. How many WLC and APs in an RF group can the controller software scale up to in WLC release 8.9 depending on the platform?

• A. up to 20 WLCs and 4000 APs
• B. up to 20 WLCs and 3000 APs
• C. up to 20 WLCs and 1000 APs
• D. up to 20 WLCs and 6000 APs

Answer: D

 

NEW QUESTION 14
A high-density wireless network is designed. Which Cisco WLC configuration setting must be incorporated in the design to encourage clients to use the 5 GHz spectrum?

• A. load balancing
• B. Cisco Centralized Key Management
• C. Band Select
• D. RRM

Answer: C

Explanation:

 

NEW QUESTION 15
An engineer must ensure that the new wireless LAN deployment can support seamless roaming between access points using a standard based on an amendment to the 802.11 protocol. Which protocol must the engineer selects?

• A. 802.11r
• B. 802.11ac
• C. 802.11i
• D. 802.11e

Answer: A

Explanation:

 

NEW QUESTION 16
What causes the most signal attenuation, based on the wireless design tools?

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

Answer: A

Explanation:

 

NEW QUESTION 17
When conducting a site survey for real-time traffic over wireless, which two design capabilities of smartphones and tablets must be considered? (Choose two.)

• A. no support for 802.11ac
• B. lower data rates than laptops
• C. no support for 802.11r
• D. fewer antennas than laptops
• E. higher data rates than laptops

Answer: D,E

 

NEW QUESTION 18
Which three pieces of equipment are needed to conduct a fully measured wireless survey? (Choose three.)

• A. PoE battery
• B. ladder
• C. goggles
• D. access point
• E. tall tripod
• F. spirit level

Answer: A,D,E

Explanation:
Section: Wireless Site Survey

 

NEW QUESTION 19
An engineer must decide the cell overlap for a wireless voice deployment. Which Cisco measurement recommendation should be considered?

• A. The edge of the cell should be -67 dBm.
• B. The measurement should be done on the 2.4-GHz band.
• C. The edge of the cell should be below 35 RSSI.
• D. One AP should be deployed per 3000 square feet.

Answer: A

Explanation:

 

NEW QUESTION 20
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. 802.11k
• C. 802.11w
• D. 802.11i

Answer: A

Explanation:

 

NEW QUESTION 21
Which statement about AP failover priority for access points when configured with priority 1 or 4 is true?

• A. When configured with priority 1, the access point is assigned with the medium priority level and it is marked as medium. This access point fails over after other access points with the higher priority when there is primary controller failure.
• B. When configured with priority 4, the access point is assigned with the highest priority level and it is marked as critical. This access point fails over before other access points with the lower priority when there is primary controller failure.
• C. When configured with priority 4, the access point is assigned with the lowest priority level and it is marked as low. This access point fails over after other access points with the higher priority when there is primary controller failure.
• D. When configured with priority 1, the access point is assigned with the highest priority level and it is marked as critical. This access point fails over before other access points with the lower priority when there is primary controller failure.

Answer: B

Explanation:

 

NEW QUESTION 22
An engineer must repurpose a lab WLC appliance for use in the production environment of the enterprise. After the new WLC is configured with the information of the other WLC, the mobility tunnels are still not coming up. What is the reason?

• A. The hardware platform is incompatible.
• B. The mobility groups are different.
• C. A firewall is blocking UDP port 16667 between the WLCs.
• D. The WLC management interfaces are in the same VLAN.

Answer: B

 

NEW QUESTION 23
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 exchange mobility control messages (over UDP port 16666) and a new client session is started with the new controller.
• C. 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.
• 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.

Answer: A

Explanation:

 

NEW QUESTION 24
An engineer has performed a predictive site survey for high-speed data and voice in an indoor office. What is the recommended data rate with −67 dBm signal level for optimal VoWLAN design?

• A. 24 Mbps on 802.11 an
• B. 24 Mbps on 802.11 bgn
• C. 6 Mbps on 802.11 bgn
• D. 12 Mbps on 802.11 an

Answer: B

Explanation:
Section: Wireless Site Survey

 

NEW QUESTION 25
Refer to the exhibit.

Which two statements about Cisco Prime Infrastructure are true? (Choose two.)

• A. It presents the recommended number of APs for the selected coverage area based on the selections made.
• B. It shows the map editor feature in Cisco Prime Infrastructure.
• C. Controllers must be synchronized with Cisco Prime Infrastructure for planning mode to work.
• D. Planning mode requires a special license in Cisco Prime Infrastructure.
• E. It shows the planning mode feature in Cisco Prime Infrastructure.

Answer: A,E

Explanation:

 

NEW QUESTION 26
A wireless engineer is hired to design a network for a technology company. The company campus has four buildings and a warehouse with access points that provide full wireless coverage as well as a pair of WLCs located in the core of the network. Which type of wireless architecture is being used?

• A. unified deployment
• B. distributed deployment
• C. autonomous deployment
• D. centralized deployment

Answer: D

Explanation:

 

NEW QUESTION 27
An engineer must create data-link redundancy for the company's Cisco Wireless LAN Controller. The engineer has decided to configure LAG-based redundancy instead of port-based redundancy. Which three features of LAG-based redundancy influenced this decision? (Choose three.)

• A. Ports are grouped into multiple LAGs.
• B. Full bandwidth of all links is available.
• C. Interface connection to two separate nonstacked switches is available.
• D. The same port has multiple untagged dynamics interfaces.
• E. All interface traffic passes as long as one port is up.
• F. Packets are always sent out on the same port they are received on.

Answer: A,E,F

Explanation:
Explanation
https://community.cisco.com/t5/wireless-mobility-documents/lag-link-aggregation/ta-p/3128669

 

NEW QUESTION 28
What is the recommended cell overlap when designing a wireless network for Cisco Hyperlocation?

• A. 50%
• B. 30%
• C. 20%
• D. 40%

Answer: C

Explanation:

 

NEW QUESTION 29
Which statement about the 9800 Series Wireless Controller mobility tunnel on a Cisco Catalyst 9800 controller is true?

• A. It is a CAPWAP tunnel with control path and data path.
• B. It is a CAPWAP tunnel with data path only.
• C. It is an IPsec tunnel with control path only.
• D. It is an IPsec tunnel with control path and data path.

Answer: A

Explanation:

https://www.cisco.com/c/en/us/td/docs/wireless/controller/9800/config-guide/b_wl_16_10_cg/mobility.html

 

NEW QUESTION 30
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 TCP 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 UDP port 16666 for communication to work.
• D. A rule is needed at the firewall to allow TCP port 97 for communication to work.

Answer: C

Explanation:

 

NEW QUESTION 31
An engineer changed the TPC Power Threshold for wireless deployment from the default value to -65 dBm. The engineer conducts a new post-deployment Survey to validate the results What is the expected outcome?

• A. Decreased client signal strength
• B. Decreased channel overlap
• C. Increase cell size
• D. Increased received sensitivity

Answer: A

 

NEW QUESTION 32
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 is used least by the company
• B. the client that has the highest RF properties
• C. the client with the worst RF characteristics
• D. the client that is used most by the company

Answer: D

Explanation:
Section: Wireless Site Survey

 

NEW QUESTION 33
An engineer must ensure that the new wireless LAN deployment can support seamless roaming between access points using a standard based on an amendment to the 802.11 protocol. Which protocol must the engineer selects?

• A. 802.11r
• B. 802.11ac
• C. 802.11i
• D. 802.11e

Answer: A

Explanation:

 

NEW QUESTION 34
An engineer must speed up the reauthentication delays that are being experienced on the wireless infrastructure by deploying a key-caching mechanism. Which mechanism must be configured?

• A. PMF
• B. PEAP
• C. FT
• D. GTK-randomization

Answer: C

Explanation:

 

NEW QUESTION 35
A wireless engineer is performing a post verification of a wireless network. Which two metrics does the engineer verify to ensure that the wireless network can support voice services? (Choose two.)

• A. The coverage area must have a noise floor that does not exceed -87 dBm.
• B. The rate of retransmitted packets must be 15 percent or below.
• C. The client device must have at least an -65 dBm RSSI.
• D. The rate of retransmitted packets must be 20 percent or below.
• E. The client device must have at least an -67 dBm RSSI.

Answer: D,E

Explanation:

 

NEW QUESTION 36
An engineer must speed up the reauthentication delays that are being experienced on the wireless infrastructure by deploying a key-caching mechanism. Which mechanism must be configured?

• A. PMF
• B. PEAP
• C. FT
• D. GTK-randomization

Answer: C

 

NEW QUESTION 37
An enterprise is using two wireless controllers to support the wireless network. The data center is located m the head office Each controller has a corporate WLAN configured with the name Copr-NET390595865WLC-1 and Copr-NET6837l638WLC-2 The APs are installed using a round-robin approach to load balance the traffic What should be changed on the configuration to optimize roaming?

• A. Place the access points per floor on the same controller.
• B. Move the controllers to an external data center with higher internet speeds
• C. Move all access points to one controller and use the other as N-1 HA.
• D. Use the same WLAN name for the corporate network on both controllers

Answer: A

 

NEW QUESTION 38
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