JN0-251 Real Exam Questions and Verified Answers

Question 1 Single choice

Users are complaining about WLAN performance and the Mist dashboard reports non-Wi-Fi interference.

Which diagnostics tool would you use to further investigate this issue on-site and determine the location of the interference?

A
spectrum analyzer
B
protocol analyzer
C
wireless design software
D
WLAN scanner

Show answer and explanation

Correct answer: A

Explanation

References:
https://www.mist.com/resources/ap43-access-point/

Question 2 Single choice

You have just brought online a new site of AP43s. While verifying that everything looks good, you notice that all of the access points (APs) are reporting "insufficient power." The APs are connected to an 802. 3at- capable switch.

In this scenario, what would be the cause of the error?

A
The cable run to each AP is too long.
B
The Ethernet cable is plugged into the wrong port on the AP.
C
The APs' firmware must be upgraded.
D
LLDP-MED is not configured on the switch.

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Correct answer: D

Question 3 Single choice

What is the minimum administrator role needed to invite a user to be an administrator of an organization?

A
network admin
B
installer
C
helpdesk
D
super user

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Correct answer: D

Question 4 Multiple choice

The Mist help menu provides direct access to which two features? (Choose two.)

A
hardware updates
B
company updates
C
feature updates
D
firmware updates

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Correct answers: C, D

Question 5 Single choice

What is a Mist Coverage SLE based upon?

A
an average of client data
B
a summary of switch data
C
a summary of user minutes
D
an average across APs

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Correct answer: B

Explanation

References:
https://www.mist.com/documentation/service-level-expectations-sle/#:~:text=SLE%20Metric%3A%20Coverage,the%20classifiers%20are%20not%20fired

Question 6 Single choice

Which statement defines the total user minutes?

A
The total number of minutes for which Mist has statistics for each client.
B
The total number of minutes between a client's last association and disassociation.
C
The total amount of device uptime over the last seven days.
D
The average number of minutes that all clients have been associated to the network.

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Correct answer: B

Question 7 Multiple choice

Mist has detected a bad cable.

What are two ways that Marvis determined this result? (Choose two.)

A
It identified network loops.
B
It identified port flapping.
C
It identified interface errors.
D
It identified a missing VLAN.

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Correct answers: A, B

Explanation

References:
https://www.mist.com/resources/mist-marvis-overview/

Question 8 Single choice

Which protocol is used by Mist access points to discover third-party switches?

A
LLDP
B
SNMP
C
CDP
D
ICMP

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Correct answer: C

Explanation

References:
https://www.mist.com/documentation/wired-visibility-mist-dashboard/

Question 9 Multiple choice

Which two statements are correct about an Organization ID? (Choose two.)

A
The Organization ID is randomly created by the system.
B
The Organization ID is used to identify the organization when using APIs.
C
The Organization ID is the encrypted version of the Organization Name field.
D
The Organization ID is manually defined by the user.

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Correct answers: A, B

Question 10 Multiple choice

In which two Mist configuration levels would you create labels? (Choose two.)

A
site
B
organization
C
switch
D
location

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Correct answers: A, B

Explanation

References:
https://www.mist.com/documentation/organization-labels-vs-site-labels/