Access to Free JNCIA-MistAI JN0-250 Practice Questions and Answers

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JNCIA-MistAI as the associate-level certification is designed for Wireless LAN networking professionals with introductory knowledge of wireless networking using the Mist AI. The written exam for the certification verifies your basic understanding of WLAN and Mist AI technology, features, and functionality.

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1. In a standard roam from one access point to another access point, what makes the

decision to roam?

the controller

the access point

the client device

the cloud

2. The DHCP server has run out of address leases on a site.

In this scenario, which SLE would be useful to what is happening?

capacity

throughput

roaming

successful connects

3. You have designed a WLAN to satisfy primary coverage, secondary coverage, and capacity requirements. However, you still do not have enough BLE radios to satisfy your location requirements. You want to fill the gaps with a low cost, BLE-only device.

Which Mist device will satisfy this requirement?

AP41

BT11

AP32

AP43

4. What does 802.11ac (Wi-Fi 5) specify as the maximum channel width?

160 MHz

60 MHz

20 MHz

40 MHz

5. 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.

6. What are two requirements to connect an AP to the Mist Cloud? (Choose two.)

You need a CA SSL certificate.

You need DNS resolution.

You need a static IP address.

You need a DHCP server

7. Which Juniper Mist device enables seamless roaming for large campus networks through on-premises tunneling?

Mist BT11

Mist AP43

Mist AP33

Mist Edge

8. Marvis requires which subscription?

Wired Assurance

Asset Visibility

Virtual Network Assistant

Premium Analytics

9. Which organization is responsible for WLAN standards?

FCC

IEEE

IETF

ISO

10. When designing for a multiple frequency deployment (5 GHz and 2.4 GHz), which statement is correct?

The coverage of the multiple bands at the same power will be identical.

5 GHz is a higher frequency and so will travel further and penetrate walls better.

5 GHz should generally be used for planning.

802. 11ac is available in both frequency bands so the design frequency is not important.

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11. A user is experiencing DNS problems.

In this scenario, where in the GUI would you be able to see the problems?

WLAN tab

Live View

Clients tab

Insights

12. You are troubleshooting a WLAN from a mobile handheld device that displays radio information. You see a signal on the same SSID from two separate access points (APs). AP A shows a signal strength of -57 dBm and AP B shows a signal strength of -72 dBm.

In this scenario, which statement is correct?

dBm is not a measure of signal strength.

The client's signal strength is not known.

Access point A has the stronger signal.

Access point B has the stronger signal.

13. What is the width for a 2.4 GHz OFDM channel?

20 MHz

30 MHz

5 MHz

10 MHz

14. Which Mist feature offers Al-based interactive troubleshooting?

Marvis

Wireless Assurance

Insights

Site Configuration

15. You are configuring your Mist network and you want to separate certain users into their own networks and VLANs. You are concerned about the network's utilization and want to make sure that only a single SSID is sending beacons.

In this scenario, which feature would accomplish this behavior?

geofence

multiple PSK

virtual SSID

SSID scheduling

16. Which device is responsible for roaming decisions?

user

client

controller

17. What is an 802.11 management frame transmitted by an AP?

echo request

ping

keepalive

beacon