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Juniper JN0-451 (Mist AI - Specialist (JNCIS-MistAI)) Exam is a certification exam offered by Juniper Networks. JN0-451 exam focuses on the skills and knowledge required to design, configure, and manage networks using Juniper Mist AI technology. JN0-451 exam is intended for network engineers, architects, and administrators who are responsible for implementing and managing network infrastructures.
NEW QUESTION # 10
What do 802.11 stations perform to help avoid collisions on the WLAN medium?
- A. Stations only transmit when polled by the access point.
- B. Transmit on a fixed schedule.
- C. 802.11 stations detect collisions and set a back-off timer.
- D. Listen to verify that the medium is free before transmitting.
Answer: D
NEW QUESTION # 11
Some users cannot connect to the network. You want to identify these users. In Marvis, which query accomplishes this task?
- A. unhappy clients
- B. troubleshoot clients
- C. troubleshoot access points
- D. list clients
Answer: A
Explanation:
According to the Marvis - Mist document, unhappy clients is a query that can be used in Marvis to identify users who cannot connect to the network. Unhappy clients shows a list of clients who have experienced poor service level expectations (SLEs) such as connection failures, coverage issues, or low throughput.
NEW QUESTION # 12
Under which hierarchy level would you create a new site configuration?
- A. location
- B. access points
- C. clients
- D. organization
Answer: A
Explanation:
According to the Cisco Catalyst 9800 Series Wireless Controller Software Configuration Guide2, you can create a new site configuration under the location hierarchy level in the Juniper Mist UI. A site is a logical grouping of devices based on physical location or other criteria.
NEW QUESTION # 13
You are deploying multiple Mist APs across many sites in your network. You must ensure that you apply consistent WxLAN and WLAN policies across all sites within the same organization.
Which configuration object should be used to accomplish this behavior?
- A. a config template
- B. an RF template
- C. a device profile
- D. site labels
Answer: A
Explanation:
Explanation
To ensure consistent WxLAN and WLAN policies across all sites within an organization when deploying multiple Mist APs, you should use a config template. So the correct answer is D. a config template.
NEW QUESTION # 14
Your organization has recently purchased new VoIP handsets. All of the VoIP handsets fail to connect to the corporate WLAN. However, all other devices connect successfully. You expect that there might be a bug with the new handsets. The vendor asks you to provide a pcap file of the handsets' connection attempts.
Which Juniper Mist feature will provide this file?
- A. Alerts dashboard
- B. Service Level Expectations
- C. Dynamic Packet Capture
- D. Clients Insights
Answer: C
Explanation:
Explanation
Dynamic Packet Capture is a Juniper Mist feature that can provide a pcap file of the VoIP handsets' connection attempts.
NEW QUESTION # 15
A retail customer has legacy 2.4 GHz scanners that need to connect to the WLAN, but they are not connecting.
Which WLAN data rate setting is required for these devices to connect?
- A. High Density
- B. Compatible
- C. No Legacy
- D. Custom Rates
Answer: B
Explanation:
Explanation
The Compatible WLAN data rate setting is required for legacy 2.4 GHz scanners to connect to the WLAN.
NEW QUESTION # 16
Which two statements are correct about Juniper Mist Dynamic Packet Capture? (Choose two.)
- A. It is automatically attached to a client event displayed on the Insights page.
- B. It is automatically attached to the Affected Items list in the Successful Connects SLE.
- C. No configuration is necessary for Mist's Dynamic Packet Capture.
- D. It must be globally configured at the organization level.
Answer: A,C
Explanation:
Explanation
Two correct statements about Juniper Mist Dynamic Packet Capture are that no configuration is necessary for Mist's Dynamic Packet Capture and it is automatically attached to a client event displayed on the Insights page. So the correct answers are A. No configuration is necessary for Mist's Dynamic Packet Capture and B. It is automatically attached to a client event displayed on the Insights page.
NEW QUESTION # 17
Which Wireless Assurance SLE provides information on Opportunistic Key Caching (OKC)?
- A. Roaming
- B. Coverage
- C. Capacity
- D. Time to Connect
Answer: A
Explanation:
Reference:
According to the Cisco Catalyst 9800 Series Wireless Controller Software Configuration Guide1, the Wireless Assurance SLE that provides information on Opportunistic Key Caching (OKC) is Roaming. OKC is a fast roaming technique that allows wireless clients and the WLAN infrastructure to cache only one PMK for client association with a WLAN, even when roaming between multiple APs.
NEW QUESTION # 18
Regarding the seven layer OSI networking model, which two layers are different between Ethernet and Wi-Fi? (Choose two.)
- A. network layer
- B. physical layer
- C. media access control (MAC) sub-layer
- D. logical link control (LLC) sub-layer
Answer: B,C
NEW QUESTION # 19
A retail customer has legacy 2.4 GHz scanners that need to connect to the WLAN, but they are not connecting.
Which WLAN data rate setting is required for these devices to connect?
- A. High Density
- B. Compatible
- C. No Legacy
- D. Custom Rates
Answer: B
NEW QUESTION # 20
What information would be streamed through webhooks? (Choose two.)
- A. alerts
- B. SLE metrics of clients
- C. location coordinates of RFID tags
- D. audit logs
Answer: A,C
NEW QUESTION # 21
Which two SLEs measure the amount of time that it takes for a process to complete? (Choose two.)
- A. AP uptime
- B. throughput
- C. roaming
- D. time to connect
Answer: C,D
Explanation:
According to the Virtual Network Assistant | Juniper Networks US document3, two SLEs that measure the amount of time that it takes for a process to complete are:
Roaming, which measures how long it takes for a client to switch from one AP to another without losing connectivity.
Time to Connect, which measures how long it takes for a client to complete all steps of network access such as authentication, DHCP, and DNS.
NEW QUESTION # 22
All the access points (APs) on the site will obtain an IP address for the Management VLAN. You notice an additional IP address for each configured VLAN on the AP.
Which statement is correct in this scenario?
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The JN0-451 exam is part of the Juniper Networks Certification Program, which is designed to validate the skills and knowledge of network professionals. Mist AI - Specialist (JNCIS-MistAI) certification program offers various levels of certification, ranging from entry-level to expert-level certifications. The JN0-451 exam is a specialist-level certification exam that focuses specifically on Mist AI.
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