400-351 Latest Exam (Aug 2018)

[Free] 2018(Aug) Ensurepass Cisco 400-351 Dumps with VCE and PDF 51-60

August 12, 2018

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CCIE Wireless (v3.1)

Question No: 51 – (Topic 1)

You are the wireless administrator for ACME corporation. You must configure a Cisco Catalyst 3850 Series Switch to work as mobility agent to allow access point association to this switch. Which statement about this scenario is true?

  1. Access points must be connected to an access port that has the access VLAN configured to be the same as the service port VLAN on the Catalyst 3850 switch.

    Access points must be connected to a trunk port with the native VLAN set to 1 in order to join the WLC on the Catalyst 3850 switch.

  2. Access points must be connected to an access port with the access VLAN configured to the same as the wireless management VLAN on the Catalyst 3850 switch.

  3. Access points must be connected to an access port that has the access VLAN configured to be the same as the management VLAN for the switch stack.

  4. Access points must be connected to an access port with the access VLAN configured to

be any VLAN that has a Layer 3 interface (SVI) on the Catalyst 3850 switch.

Answer: C Explanation:

Getting Started with 3850

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Question No: 52 – (Topic 1)

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Refer to the exhibit.

You are troubleshooting location accuracy problems on a customer deployment. You have done the wireless design and you are sure that the As are correctly placed on the Cisco Prime map. Everything is correctly synchronized between WLC, PI, and MSE but, you are sometimes getting elements tracked on the wrong floor. After you get this debug output from MSE, which step is next?

  1. Reduce the confidence level on MSE when the last heard value is higher than 150 seconds.

  2. Run a new calibration model and ensure that it is applied on the floor.

  3. Discard RSSI values lower than – 75 dbm.

  4. Check it the AP with MAC address 001c 0f 4c 45 60 is physically located on the floor where the element was wrongly located and if the inter-floor attenuation is weak.

Answer: C Explanation:

http://www.cisco.com/c/en/us/td/docs/wireless/prime_infrastructure/1- 3/configuration/guide/pi_13_cg/maps.pdf

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Question No: 53 – (Topic 1)

Which major block is not included in the ETSI Network Function Virtualization reference framework?

  1. Network Function Visualization Infrastructure.

  2. Network Function Virtualization Management and Orchestration.

  3. Network Function Virtualization Policy Manager.

  4. Virtualized Network Function/ Element Management Systems.

Answer: C Explanation:


Question No: 54 – (Topic 1)

You are the network administrator for ACME corporation. Your organization has deployed a single Cisco 5500 Series Wireless Controller with 100 Cisco Aironet 3500 Series Aps. A new IT member is worried that most of these Aps are working at a power Ievel3 on the 5GHz radio specially. As this power level setting is causing issues in your wireless network. Which option describes the likely cause of this behavior?

  1. The WLC has been recently rebooted, which causes the TPC algorithm to set power level 3 on all APs for 90 seconds.

  2. The controller TPC algorithm seems to have a problem. It might have been set to work in TPCv2 mode instead of TPCvl.

  3. The WLC is misconfigured because the static power of level 3 has been set for all the APs under TPC settings.

  4. Cisco 7925 wireless IP Phones are in use and the DTPC feature is enabled on the 5 GHz radio.

Answer: D Explanation: Tx Power

Num Of Supported Power Levels 5

Tx Power Level 1 …………………….. 18 dBm

Tx Power Level 2 …………………….. 15 dBm

Tx Power Level 3……………………… 12 dBm

Tx Power Level 4 …………………….. 9 dBm

Tx Power Level 5 …………………….. 6 dBm


Question No: 55 – (Topic 1)

Which three conditions can trigger a client exclusion policy?(Choose three.)

  1. Excessive 802.11 probe request failures

  2. Excessive 802.lx authorization failures

  3. IP theft or IP reuse

  4. Excessive 802.lx authentication failures

  5. Excessive 802.11 association failures

  6. Excessive 802.11 packet retries

Answer: C,D,E Explanation:

http://www.cisco.com/c/en/us/support/docs/wireless-mobility/wireless-lan-wlan/117714- technote-aireoswlc-00.html

Question No: 56 – (Topic 1)

Which action is needed to edit the settings of an RF profile?

  1. Disable both radio networks

  2. Disable custom power level settings for all APs within the group to which the profile is linked.

  3. Remove the desired RF profile from all AP groups

  4. RF profiles cannot be edited. They must be removed and recreated with the desired values.

Answer: C Explanation:

http://www.cisco.com/c/en/us/td/docs/wireless/controller/8-0/configuration- guide/b_cg80/b_cg80_chapter_01011101.html

Question No: 57 – (Topic 1)

When connecting an autonomous access point in workgroup bridge mode to a WLAN configured on a Cisco WLC. Which two options are true? (Choose two.)

  1. The WGB mode allows to connect only one wired client behind the WGB to the WLAN.

  2. The WGB cannot serve wireless clients.

  3. The traffic of the wired client behind the WGB can be tunneled only to the Cisco WLC on the VLAN configured for the dynamic interface of the WLAN.

  4. The traffic of the wired client tagged on a specific VLAN behind the WGB can be tunneled to the same VLAN behind the the Cisco WLC.

  5. The WGB creates a network extension for the wired clients.

  6. The WGB could serve wireless clients only on the other radio not connecting to the WLAN.

Answer: B,C Explanation:

http://www.cisco.com/c/en/us/td/docs/routers/access/wireless/software/guide/RolesWGB.ht ml

Question No: 58 – (Topic 1)

You have received a new Cisco 5760 Controller and have gone through the initial startup wizard. You are now trying to add APs to the controller, but these are not joining. Which three checks should you do next? (Choose three.)

  1. Check that the radios are not in a shutdown state.

  2. Check the country code of the controller. The APs do not join the controller if the country does not match.

  3. Check that the correct time is set on the controller.

  4. Check that option 53 has been set in the DHCP scope.

  5. Check that the controller has enough AP licenses.

  6. Check that the controller has been configured with the correct hostname. Otherwise, resolution fails.

Answer: B,C,E Explanation: From:

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Ensurepass 2018 PDF and VCE

Ensurepass 2018 PDF and VCE

http://www.cisco.com/c/en/us/td/docs/wireless/controller/5700/software/release/3se/lwap/co nfiguration_guide/b_ap_3se_5700_cg/b_ap-config_32se_5700_cg_chapter_010.html

Question No: 59 – (Topic 1)

Which enhancement was introduced in 802.11ac Wave 2 and was not present in 802.lln?

  1. 64 QAM

  2. 128 QAM

  3. MU-MIMO

  4. 40MHz channel width

  5. four spatial streams

  6. SU-MIMO

Answer: C Explanation:

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http://www.cisco.com/c/en/us/solutions/collateral/enterprise-networks/802-11ac-solution/q- and-a-c67-734152.html

Question No: 60 – (Topic 1)

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Refer to the exhibit.

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Which feature (and associated show output) is seen here?

  1. Controllergt;show client tsm 802.11a 00:01:02:03:04:05 all

  2. Controllergt;show client wmm 802.11a 00:01:02:03:04:05 all

  3. Controllergt;show ap stats 802.11a00:01:02:03:04:05

  4. Controllergt;show client detail 00:01:02:03:04:05

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Answer: A Explanation:


4/configuration/guides/consolidated/b_cg74_CONSOLIDATED/b_cg74_CONSOLIDATED_ chapter_010000.html

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