Exam JN0-251 All QuestionsBrowse all questions from this exam
Question 6

What does Mist with Wi-Fi Assurance do to detect a bad cable connected to an AP?

    Correct Answer: D

    Mist with Wi-Fi Assurance detects a bad cable connected to an AP by applying machine learning to telemetry data such as frame errors, link statistics, link errors, and traffic patterns. This allows the system to identify issues with cables without performing active tests.

Discussion
VarshadasOption: B

B. It performs cable tests.

ToshihikoOption: D

" Marvis can detect bad cables easily by using cable data such as frame errors, link statistics, link errors, and traffic patterns." https://www.juniper.net/documentation/us/en/software/mist/marvis/topics/concept/layer1-actions.html

admin1982Option: D

D is correct. Mist DOES NOT run any active test to determine a bad cable. Watch the entire 1 Minute provided in the link below, also in the Juniper learning portal. https://www.juniper.net/documentation/us/en/software/mist/marvis/topics/concept/layer1-actions.html

VarshadasOption: A

A. It monitors SNMP trap information.

ap___Option: D

Marvis can detect bad cables easily by using cable data such as frame errors, link statistics, link errors, and traffic patterns. https://www.juniper.net/documentation/us/en/software/mist/mist-aiops/topics/concept/layer1-actions.html#:~:text=When%20you%20click%20the%20Layer,see%20on%20the%20Actions%20dashboard.

xiaoyl_examsOption: D

In WIFI Assurance, bad cable is detected based on the telemetry data collected on APs.

admin1982Option: D

100% D

Telonic

definitly wrong! B is correct.

admin1982

D is correct. Mist DOES NOT run any active test to determine a bad cable. https://www.juniper.net/documentation/us/en/software/mist/marvis/topics/concept/layer1-actions.html

Telonic

yes it does: https://www.juniper.net/documentation/us/en/software/mist/marvis/topics/concept/layer1-actions.html ".... By performing its own cable tests and...." --> B is correct

Telonic

They changed the text in this document meanwhile. When I first checked it said "by performing its won cable tests.." now: "Marvis can detect bad cables easily by using cable data such as frame errors, link statistics, link errors, and traffic patterns." so yes, you could be right with D.

TelonicOption: B

https://www.juniper.net/documentation/us/en/software/mist/marvis/topics/concept/layer1-actions.html ".... By performing its own cable tests and...." --> B is correct

OkoJunOption: D

SNMP definitely not, because Mist is connected to the switches via pyAgent. Since Marvis uses product data for analysis, my opinion is "D" - machine learning

kujupOption: B

Hard to answer, because it monitors AP, Switch and so on. But I would say B, its a layer1 problem. https://www.juniper.net/documentation/us/en/software/mist/marvis/topics/concept/layer1-actions.html