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Juniper JN0-251 Practice Test - Questions Answers, Page 8

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Question 71

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Under ideal conditions, which frequency band will have the farthest usable range?

Question 72

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Which statement is correct about a WLAN RF medium?

Question 73

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Referring to the exhibit, what do you determine about the site's Time to Connect SLE metric?

Question 74

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What is an 802.11 management frame transmitted by an AP?

Question 75

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You are troubleshooting a signal strength issue when you notice that the signal strength changes from -70 to -73 dBm as you move from one room to another. In this scenario, what is happening?

Question 76

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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

Question 77

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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

Question 71

Under ideal conditions, which frequency band will have the farthest usable range?

900 MHz

2.4 GHz

5 GHz

6 GHz

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Question 72

Which statement is correct about a WLAN RF medium?

A WLAN RF is a full duplex, contention free medium where each client transmits on a separate channel.

A WLAN RF is a full-duplex, contention-free medium where 802.11 stations can transmit and receive at the same time.

A WLAN RF is a half-duplex, shared medium where 802.11 stations contend with each other for access.

A WLAN RF is a half-duplex, contention-free medium where the access point polls each station in turn.

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Question 73

Referring to the exhibit, what do you determine about the site's Time to Connect SLE metric?

Successful connect averaged 1.6 seconds.

Eighty percent of the Time to Connect failures are related to DHCP failures

All clients cannot connect to the Internet.

Time to Connect Association DHCP failures impacted 80% of users.

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Question 74

What is an 802.11 management frame transmitted by an AP?

echo request

ping

keepalive

beacon

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Question 75

You are troubleshooting a signal strength issue when you notice that the signal strength changes from -70 to -73 dBm as you move from one room to another.

In this scenario, what is happening?

Signal strength has increased by 10x.

Signal strength has decreased by 10x.

Signal strength has doubled.

Signal strength has halved.

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Question 76

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?

spectrum analyzer

protocol analyzer

wireless design software

WLAN scanner

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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?

The cable run to each AP is too long.

The Ethernet cable is plugged into the wrong port on the AP.

The APs' firmware must be upgraded.

LLDP-MED is not configured on the switch.

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Total 77 questions