Juniper JN0-451 Online Practice Questions and Exam Preparation

Juniper JN0-451 Online Questions & Answers

• Question 31:

  A retail customer has legacy 2. 4 GHz scanners that need to connect to the WLAN, but they are not connecting.

  Which WLAN data rate setting is required for these devices to connect?

  A. Custom Rates
  B. Compatible
  C. High Density
  D. No Legacy
  B. Compatible

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  Explanation

• Question 32:

  You are deploying multiple Mist APs across many sites in your network. You must ensure that you apply consistent WxLAN and WLAN policies across all sites within the same organization. Which configuration object should be used to accomplish this behavior?

  A. site labels
  B. an RF template
  C. a device profile
  D. a config template
  B. an RF template

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  Explanation

  https://www.juniper.net/documentation/en_US/junos-space-apps/network- director4. 0/topics/concept/wireless-rogue-ap.html

• Question 33:

  In which two layers of the OSI model are WLANs located? (Choose two.)

  A. Network
  B. Transport
  C. Physical
  D. Data Link
  C. Physical
  D. Data Link

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  Explanation

  https://www.controleng.com/articles/wi-fi-and-the-osi-model/

• Question 34:

  Click the Exhibit button.

  

  Referring to the exhibit, as part of the Throughput SLE in the Mist UI, the Coverage classifier indicates the signal strength of which device?

  A. the AP's radio strength
  B. the signal strength between APs
  C. the client
  D. the AP's radio for a single SSID
  C. the client

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  Explanation

• Question 35:

  Which Wireless Assurance SLE has classifiers of Association, Authorization, DHCP, and Internet Services?

  A. Roaming
  B. Coverage
  C. Time to Connect
  D. Capacity
  D. Capacity

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  Explanation

  https://www.mist.com/documentation/service-level-expectations-sle/

• Question 36:

  You have deployed location services at a site and have installed an application which includes the Mist SDK on Bluetooth-only mobile client devices. The devices with the SDK- enabled app have Bluetooth enabled, but the devices do not appear in the Mist GUI under Clients/App Clients.

  What is causing this problem?

  A. There is BLE and Wi-Fi co-channel interference.
  B. The clients are connected to the wrong WLAN.
  C. The AP BLE radios do not hear the SDK-enabled client's BLE beacons.
  D. The client devices are not connected to Wi-Fi or to a cellular data plan.
  C. The AP BLE radios do not hear the SDK-enabled client's BLE beacons.

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  Explanation

• Question 37:

  You are the only tenant in a building that has Wi-Fi. At times, the Wi-Fi network appears to be slow and you want to determine if the microwave oven is causing an issue because it is used throughput the day. Which SLE metric and classifier should you look at to determine the issue?

  A. throughput/network issues
  B. capacity/wifi interference
  C. throughput/coverage
  D. capacity/non-wifi interference
  D. capacity/non-wifi interference

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  Explanation

  https://www.mist.com/documentation/radio-management-event-types/

• Question 38:

  You receive a Marvis Actions alert informing you that there is a non-compliant AP at one of your sites. What should you do to correct the problem?

  A. Request an RMA.
  B. Disconnect the Rogue AP from your Ethernet switch.
  C. Replace the AP with the correct hardware model.
  D. Install the correct version of firmware on the AP.
  D. Install the correct version of firmware on the AP.

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  Explanation

  https://www.mist.com/documentation/what-is-marvis-actions/

• Question 39:

  Click the Exhibit button.

  

  A user opened a ticket. Upon troubleshooting, you determine that frequent roaming is the root cause of the problem. Referring to the exhibit, which statement describes the roaming issue that the client is experiencing?

  A. There are frequent roams between different protocols.
  B. There are frequent roams between different bands.
  C. There are frequent roams between different WLANs.
  D. There are frequent roams between different access points.
  D. There are frequent roams between different access points.

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  Explanation

• Question 40:

  Click the Exhibit button.

  

  Referring to the exhibit, which statement is correct?

  A. The packet capture was taken automatically.
  B. The packet capture was taken manually.
  C. The packet capture will contain full frames.
  D. The packet capture will contain only management frames.
  C. The packet capture will contain full frames.

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  Explanation