Juniper JNCIS-MistAI JN0-450 Questions & Answers

• Question 21:

  What is the purpose of the PoE pass-through on a Mist AP?

  A. to daisy chain BT11s

  B. to power a laptop during the deployment phase

  C. to power any Mist AP

  D. to power the Mist AP43 only

  Correct Answer: A

  Reference: https://www.mist.com/documentation/daisy-chain-access-points/

• Question 22:

  You need to deploy an external, directional patch-panel antenna to provide coverage in a specific area. You plan to use a Mist AP43, which has a 4-stream 5 GHz radio, a 4-stream 2.4 GHz radio, and a dual-band 2-stream radio for monitoring. In this scenario, how many dual-band connectors should the antenna have?

  A. 4 connectors

  B. 10 connectors

  C. 6 connectors

  D. 3 connectors

  Correct Answer: C

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

• Question 23:

  You are troubleshooting a device that has not successfully connected to the network. You know the device's hostname, and have taken all steps to locate it in the Mist dashboard, including asking Marvis to locate the device. However, you are not able to find the device in the Mist dashboard. In this scenario, what is the problem?

  A. You need to ask Marvis to locate a client, not an AP.

  B. The device has not successfully associated to the network.

  C. You need to select the correct group of access points.

  D. You have the wrong SLE selected.

  Correct Answer: A

  Reference: https://www.mist.com/documentation/troubleshoot-specific-connectivity-issues- using-marvis/

• Question 24:

  Referring to the exhibit, what does the security alert indicate?

  

  A. An AP that is not part of the Mist Org is connected to the same wired network as the Mist APs.

  B. An AP that is not part of the Mist Org is launching a DDoS attack on the Mist APs.

  C. An AP that is not part of the Mist Org is advertising the same SSIDs as the Mist APs.

  D. An AP that is not part of the Mist Org is operating in the same RF channel as the nearby Mist AP.

  Correct Answer: A

  Reference: https://www.mist.com/documentation/rogue-neighbor-honeypot-aps/

• Question 25:

  How should Mist AP43 access points be mounted for location-based services?

  A. table mounted (logo face up)

  B. horizontal (logo face down)

  C. vertical (wall mounted)

  D. above the ceiling tile (logo face up)

  Correct Answer: B

  Reference: https://www.mist.com/documentation/adding-ap-location/

• Question 26:

  What happens first when a client requests to join a WLAN?

  A. 802. 11 authentication

  B. ARP request

  C. 802.11 association

  D. DHCP discovery

  Correct Answer: A

  Reference: https://netbeez.net/blog/how-wifi-connection-works/

• Question 27:

  After setting up a Guest-WLAN using the Mist captive portal, users complain that they are not able to see the captive portal splash page. What would be two reasons for this problem? (Choose two.)

  A. The guest VLAN tag is not configured on the switch port.

  B. The DNS server's IP address is not configured in the IP pool.

  C. The Mist portal IP is not configured under the captive portal bypass.

  D. The RADIUS server is not configured on the WLAN.

  Correct Answer: AB

  Reference: https://www.mist.com/documentation/guest-network-doesnt-work/

• Question 28:

  What is the purpose of a Probe Request frame?

  A. to discover all clients associated to a particular WLAN

  B. to discover all WLAN devices on a particular channel

  C. to discover available WLANs

  D. to associate to a WLAN

  Correct Answer: B

  Reference: https://www.juniper.net/documentation/en_US/junos-space-apps/network- director3.1/topics/ concept/wireless-scanning.html

• Question 29:

  You are troubleshooting a client that has had intermittent connectivity problems. Using Marvis to troubleshoot, you see that AP uptime is negatively affecting the client. When inspecting Marvis' troubleshooting response, which category should you select to see when the AP went offline?

  A. Location

  B. Correlation

  C. AP Metrics

  D. Classifiers

  Correct Answer: C

  Reference: https://www.mist.com/documentation/metrics-on-the-access-points-page/

• Question 30:

  What are two advantages of lower modulation methods? (Choose two.)

  A. Lower modulation provides higher total aggregate throughput.

  B. Lower modulation provides higher data rates.

  C. Lower modulation is more robust against signal corruption.

  D. Lower modulation can achieve greater range.

  Correct Answer: CD