300-425 Real Exam Dumps Questions and answers 21-30

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Question No.21

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

  1. cinder block wall

  2. metal door

  3. glass wall

  4. office window

Correct Answer: B

Question No.22

During a client roaming event, which device is responsible for communicating the new Layer 2 EID mapping of a wireless supplicant to the fabric domain?

  1. WLC

  2. BN

  3. CP2

  4. CP1

Correct Answer: A

Question No.23

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.)

  1. Ensure that channel bonding is enabled on the WLAN.

  2. Ensure that the co-channel interference has not exceeded -85 dBm.

  3. Ensure tha the UNII-2 extended channels are enabled on the 802.11a radios.

  4. Ensure that the client is receiving RSSI above the minimum band select RSSI threshold.

  5. Ensure that the client is dual-band capable.

  6. Ensure that the WLAN has 802.11a enabled.

Correct Answer: CDE

Question No.24

A customer asks an engineer to explain the concept of mobility domains and mobility groups. Which statement does the engineer respond with?

  1. A mobility group does not constrain the distribution of security context of a client and also does not constrain AP fail-over between controllers when the WLC are in the same mobility domain.

  2. If WLCs are in the same mobility domain, they communicate with each other but, if an anchor WLC is present it must be in the same mobility domain for communication to be possible.

  3. If WLCs are in the same mobility domain, they communicate with each other. Mobility groups constrain the distribution of security context of a client and also constrain AP fail-over between controllers.

  4. 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 constrain AP fail-over between controllers.

Correct Answer: C

Question No.25

Which two considerations must a network engineer have when planning for voice over wireless roaming? (Choose two.)

  1. Full reauthentication introduces gaps in a voice conversation.

  2. Roaming time increases when using 802.1x Cisco Centralized Key Manegement.

  3. Roaming occurs when the phone has seen at least four APs.

  4. Roaming occurs when the phone has reached -80 dBs or below.

  5. Roaming with only 802.1x authentication requires full reauthentication.

    Correct Answer: AE

    Question No.26

    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.)

    1. Use a battery pack to power APs

    2. Use a drawing of the office space to draw AP and client placements.

    3. Use DoS attack on APs while measuring the throughput.

    4. Use APs with directional antennas.

    5. Use APs with external antennas.

    6. Use APs with built-in antennas.

Correct Answer: ABF

Question No.27

An engineer is performing a predictive wireless design for a medical treatment environment, which requires data and voice services. What is the minimum requirement for the design?

  1. overlapping -72 dBm coverage from two access points

  2. continuous -67 dBm coverage from one access point

  3. continuous -72 dBm coverage from one access point

  4. overlapping -67 dBm coverage from two access points

Correct Answer: B

Question No.28

A network engineer is configuring high availability on an access point. What is the maximum number of controllers that can be configured?

A.

1

B.

2

C.

3

D.

4

Correct Answer: B

Question No.29

Where must the APs be mounted when used in a high-density wireless network to provide 6 dB to 20 dB of attenuation to a cell?

  1. in the aisle

  2. under the seat

  3. above the stage

  4. under the stage

Correct Answer: B

Question No.30

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?

  1. SKC

  2. OKC C. 802.11r

D. CCKM

Correct Answer: D

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