Use Free JN0-451 Exam Questions that Stimulates Actual EXAM [Q28-Q52]

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Use Free JN0-451 Exam Questions that Stimulates Actual EXAM

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NEW QUESTION # 28
What is the AP's role in the IEEE 802.1X authentication process?

  • A. It acts as an authentication server.
  • B. It acts as a RADIUS proxy server.
  • C. It acts as an authenticator.
  • D. It acts as a supplicant.

Answer: C

Explanation:
Explanation
In the IEEE 802.1X authentication process, the AP acts as an authenticator.


NEW QUESTION # 29
You have received a Marvis Actions Missing VLAN notification.
In this scenario, where is the problem?

  • A. An access point is missing the VLAN.
  • B. A client is missing the VLAN.
  • C. The gateway is missing the VLAN.
  • D. A switch is missing the VLAN.

Answer: D


NEW QUESTION # 30
Which modulation method will result in the highest theoretical data rates?

  • A. QPSK
  • B. BPSK
  • C. 16 QAM
  • D. 64 QAM

Answer: D

Explanation:
According to the Wi-Fi - Radio Modulation - TutorialsPoint document1, 64 QAM is a modulation method that will result in the highest theoretical data rates among the given options. 64 QAM uses both phase and amplitude modulation to encode six bits of information into each transmitted symbol. It can achieve up to 54 Mbps in the 802.11a and g systems.


NEW QUESTION # 31
You are deploying three WLAN 2.4 GHz networks in your US-based site. You must ensure that each network frequency is unique and does not overlap with the other frequency channels.
In this scenario, which three OFDM channels should be used? (Choose three.)

  • A. 0
  • B. 1
  • C. 2
  • D. 3
  • E. 4

Answer: A,D,E

Explanation:
When deploying three WLAN 2.4 GHz networks in your US-based site while ensuring that each network frequency is unique and does not overlap with other frequency channels, you should use OFDM channels 1, 6 and 11. So the correct answers are B.1, D.6, and A.11.


NEW QUESTION # 32
What is meant when a Marvis Action is shown as "AI Validated"?

  • A. Marvis has observed an issue that is no longer present.
  • B. Marvis has observed a new issue.
  • C. The issue which triggered an alert has been set to Resolved status.
  • D. Marvis has observed a recurring issue.

Answer: A


NEW QUESTION # 33
All the access points (APs) on the site will obtain an IP address for the Management VLAN. You notice an additional IP address for each configured VLAN on the AP.
Which statement is correct in this scenario?

  • A. This behavior is enabled by default under the Site configuration.
  • B. The AP MAC has a DHCP reservation.
  • C. The Local Status Page has been enabled in the AP setting under the Site configuration.
  • D. The AP is configured to support wireless mesh.

Answer: C

Explanation:
Explanation
According to the Mist documentation1, a Mist AP will pull a management IP address from the Native VLAN by default. However, if the Local Status Page is configured for the Site, all the site APs will pull their own IP address from the Management VLAN, but also addresses for each of the VLANs configured on the AP. This is because each AP creates a Switch Virtual Interface (SVI) for each VLAN on its eth0 interface.
The Local Status Page is a feature that allows you to access information about an AP's status and configuration through a web browser by connecting to its IP address2. This feature can be enabled or disabled at the site level under Site Settings > Access Points > Advanced Settings.


NEW QUESTION # 34
Referring to the exhibit, you asked Marvis to troubleshoot a client. In this scenario, what did Marvis determine?

  • A. DHCP errors over the past seven days
  • B. two authentication failures today
  • C. two authentication failures over this week
  • D. two DHCP failures today

Answer: B


NEW QUESTION # 35
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.

Answer: D


NEW QUESTION # 36
Click the Exhibit button.

Referring to the exhibit, which two statements are correct? (Choose two.)

  • A. The WLAN with SSID Verizon-5G_Tuna will cause adjacent channel interference.
  • B. The WLAN with SSID Bob24WiFi will cause adjacent channel interference.
  • C. The WLAN with SSID Eero1234 will cause adjacent channel interference.
  • D. The WLAN with SSID NETGEAR24 will cause adjacent channel interference.

Answer: B,D

Explanation:
Explanation
The WLANs with SSIDs NETGEAR24 and Bob24WiFi will cause adjacent channel interference because they are using overlapping channels in the 2.4 GHz frequency band.


NEW QUESTION # 37
Click the Exhibit button.

Referring to the exhibit, what is the meaning of the AI VALIDATED status update?

  • A. The issue was opened and Marvis confirms it has been closed.
  • B. The issue was opened and closed manually.
  • C. The issue was opened and Marvis has closed it.
  • D. The issue was opened and is unresolved.

Answer: C


NEW QUESTION # 38
Click the Exhibit button.

Referring to the exhibit, what is the meaning of the AI VALIDATED status update?

  • A. The issue was opened and closed manually.
  • B. The issue was opened and Marvis confirms it has been closed.
  • C. The issue was opened and is unresolved.
  • D. The issue was opened and Marvis has closed it.

Answer: B

Explanation:
The AI VALIDATED status update means that the issue was opened and Marvis confirms it has been closed.
According to the Marvis Virtual Network Assistant Datasheet1, the AI-VALIDATED status update means that the issue was opened and Marvis confirms it has been closed. This status indicates that Marvis has verified that the issue is no longer present and the root cause has been resolved.


NEW QUESTION # 39
Click the Exhibit button.

Referring to the exhibit, in the USA, which two statements are correct? (Choose two.)

  • A. The WLAN with SSID NETGEAR24 is configured to industry best practices.
  • B. The WLAN with SSID Eero1234 is configured to industry best practices.
  • C. The WLAN with SSID NETGEAR24 is not configured to industry best practices.
  • D. The WLAN with SSID Eero1234 is not configured to industry best practices.

Answer: A,D

Explanation:
Referring to the exhibit and considering that it is in the USA, the WLAN with SSID Eero1234 is not configured to industry best practices while the WLAN with SSID NETGEAR24 is configured to industry best practices.


NEW QUESTION # 40
Click the Exhibit button.

Referring to the exhibit, which statement is correct about the Post-Install user's role?

  • A. It has access limited to installing APs and switches at all sites.
  • B. It has full access to all sites.
  • C. It has read-only access to all sites.
  • D. It is used for help desk monitoring and workflow for all sites.

Answer: A

Explanation:
the Post-Install user role is also known as Installer role, which has a minimum level of access to the org, sites, and APs. It can do the initial installation such as claim AP to Org, assign/unassign AP, or place on map, etc., but cannot unclaim or remove the AP from the Org. Site and AP access is allowed based on timed grace period and/or explicit site access.
https://www.mist.com/documentation/mist-ai-mobile-app/


NEW QUESTION # 41
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 AP BLE radios do not hear the SDK-enabled client's BLE beacons.
  • C. The clients are connected to the wrong WLAN.
  • D. The client devices are not connected to Wi-Fi or to a cellular data plan.

Answer: B


NEW QUESTION # 42
Click the Exhibit button.

Referring to the exhibit, which statement is correct about the Post-Install user's role?

  • A. It has access limited to installing APs and switches at all sites.
  • B. It has full access to all sites.
  • C. It has read-only access to all sites.
  • D. It is used for help desk monitoring and workflow for all sites.

Answer: A


NEW QUESTION # 43
You must define VLANs as untagged, tagged, or using VLAN pooling.
In this scenario, where would you accomplish this task in the Juniper Mist UI?

  • A. policy settings
  • B. WLAN settings
  • C. organization settings
  • D. site settings

Answer: B

Explanation:
Explanation
In Juniper Mist UI, to define VLANs as untagged, tagged or using VLAN pooling, you would accomplish this task in WLAN settings. So the correct answer is B. WLAN settings.


NEW QUESTION # 44
Which two authentication methods would be used with a guest portal? (Choose two.)

  • A. social login
  • B. external portal
  • C. Kerberos
  • D. RSA

Answer: A,B

Explanation:
Two authentication methods that would be used with a guest portal are social login and external portal. So the correct answers are A. social login and B. external portal.
According to the Cisco Catalyst 9800 Series Wireless Controller Software Configuration Guide2, two authentication methods that can be used with a guest portal are:
Social login, which allows guests to log in using their social media accounts such as Facebook, Twitter, or Google.
External portal, which allows guests to log in using an external web server that hosts a custom portal page.


NEW QUESTION # 45
Which two statements are correct about the radio frequency rule of 10s and 3s? (Choose two.)

  • A. If the signal strength increases by 3 dB, the power is doubled.
  • B. If the signal strength decreases by 10 dB, the power decreases tenfold.
  • C. If the signal strength increases by 3 dB, the power is tripled.
  • D. If the signal strength decreases by 10 dB, the power is halved.

Answer: B,D


NEW QUESTION # 46
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.

Answer: C

Explanation:
According to the Cisco Catalyst 9800 Series Wireless Controller Software Configuration Guide2, a non-compliant AP is an AP that has a different hardware model than what is expected by the cloud configuration. This can happen when an AP is replaced with an incorrect model or when an AP is moved to a different site group that has a different hardware model requirement. The solution is to replace the AP with the correct hardware model.


NEW QUESTION # 47
A customer is replacing their previous WLAN controller with a Mist Edge to maintain centralization of user traffic.
How does Mist Edge affect control plane forwarding and data plane forwarding in this scenario?

  • A. Control plane forwarding applies to the Mist Cloud and data plane forwarding applies to the Mist Cloud.
  • B. Control plane forwarding applies to the Mist Edge and data plane forwarding applies to the Mist Cloud.
  • C. Control plane forwarding applies to the Mist Edge and data plane forwarding applies to the Mist Edge.
  • D. Control plane forwarding applies to the Mist Cloud and data plane forwarding applies to the Mist Edge.

Answer: B


NEW QUESTION # 48
Which two statements correctly describe an extended service set (ESS)? (Choose two.)

  • A. Each BSS within the ESS has its own unique BSSID.
  • B. Each BSS within the ESS share a common BSSID.
  • C. The SSID is common across all BSSs within the ESS.
  • D. The SSID is unique across all BSSs within the ESS.

Answer: B,C


NEW QUESTION # 49
Referring to the exhibit, what is the site ID?

  • A. 978c48e6-6ef6-11e6-8bbf-02e208b2d34f
  • B. 02e208b2d34
  • C. 02e208b2d34f
  • D. 9777c1a0-6ef6-11e6-8bbf-02e208b2d34

Answer: A


NEW QUESTION # 50
Which two Mist Aps would be used for BLE location? (Choose two.)

  • A. AP43
  • B. AP32
  • C. AP33
  • D. AP12

Answer: A,B


NEW QUESTION # 51
Click the Exhibit button.

Referring to the exhibit, which statement is correct about the Post-Install user's role?

  • A. It has access limited to installing APs and switches at all sites.
  • B. It has full access to all sites.
  • C. It has read-only access to all sites.
  • D. It is used for help desk monitoring and workflow for all sites.

Answer: A

Explanation:
Explanation
the Post-Install user role is also known as Installer role, which has a minimum level of access to the org, sites, and APs. It can do the initial installation such as claim AP to Org, assign/unassign AP, or place on map, etc., but cannot unclaim or remove the AP from the Org. Site and AP access is allowed based on timed grace period and/or explicit site access.
https://www.mist.com/documentation/mist-ai-mobile-app/


NEW QUESTION # 52
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