JN0-452認証資格、JN0-452日本語受験教科書

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Juniper JN0-452 Exam Syllabus Topics:

Section	Weight	Objectives
Topic 1: Wi-Fi Fundamentals	20%	- Modulation, coding and channel access - 802.11 PHY protocols - Frequency bands and RF principles - WLAN association, roaming and lifecycle
Topic 2: Juniper Mist Location-Based Services	10%	- User engagement and asset tracking - Wi-Fi and vBLE location technologies - Proximity services and analytics
Topic 3: Juniper Mist Network Operations	15%	- Monitoring and troubleshooting workflows - Radio Resource Management (RRM) - Wi-Fi Assurance and Service Level Expectations (SLE) - Events, alerts and insights
Topic 4: Marvis Virtual Network Assistant	15%	- Marvis concepts and capabilities - Natural language queries and actions - Proactive and reactive troubleshooting
Topic 5: Juniper Mist WLAN Concepts	20%	- WxLAN policies and guest services - Wireless intrusion detection and prevention - Multi-PSK and advanced policy features - WLAN configuration and security
Topic 6: Juniper Mist WLAN Architecture and Deployment	20%	- Account, organization and site management - API and webhook fundamentals - Initial setup and access point deployment - Mist cloud architecture and components

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Juniper Mist AI Wireless, Specialist (JNCIS-MistAI-Wireless) 認定 JN0-452 試験問題 (Q123-Q128):

質問 # 123
Site A is configured with a WLAN and a policy. The administrator creates a configuration template at the organization level with additional policies for the same WLAN and mentions Site A in this template.
In this scenario, which statement is correct?

A. The policy that is created at the site level will execute first.
B. The policy created at the organization level can be applied to a site group, not to an individual site.
C. There is no option to mention the site in the config template at the organization level.
D. The policy that is created in the config template at the organization level will execute first.

正解：D

解説：
Reference: https://www.mist.com/documentation/create-1st-wlan-using-configuration-templates/

質問 # 124
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. Clients Insights
B. Dynamic Packet Capture
C. Alerts dashboard
D. Service Level Expectations

正解：B

質問 # 125
Which two statements are true about 802.1X/EAP? (Choose two.)

A. Credentials are exchanged with a RADIUS server prior to the 802.11 Association.
B. Credentials are exchanged with a RADIUS server after the 4-way Handshake.
C. Credentials are exchanged with a RADIUS server after the 802.11 Association.
D. Credentials are exchanged with a RADIUS server prior to the 4-way Handshake.

正解：C、D

解説：
According to Wikipedia1, 802.1X is an IEEE Standard for port-based network access control (PNAC). It provides an authentication mechanism to devices wishing to attach to a LAN or WLAN using Extensible Authentication Protocol (EAP) over wired IEEE 802 networks and over 802.11 wireless networks, which is known as "EAP over LAN" or EAPOL.
The authentication process involves three parties: a supplicant (the client device), an authenticator (the network device such as an access point), and an authentication server (typically a RADIUS server). The supplicant must provide valid credentials to the authenticator before it can access the network resources.
The credentials are exchanged with a RADIUS server prior to the 4-way Handshake because the 4-way Handshake is used to establish encryption keys between the supplicant and authenticator after successful authentication2. The credentials are exchanged with a RADIUS server after the 802.11 Association because the 802.11 Association is used to establish a logical link between the supplicant and authenticator before authentication can take place3.

質問 # 126
Which two terms correctly describe transmissions over Wi-Fi? (Choose two.)

A. shared medium
B. half-duplex
C. point-to-point medium
D. full-duplex

正解：A、D

質問 # 127
What does Mist's patented 16-element vBLE Antenna Array do when "engagement" is enabled?

A. performs personal pre-shared key sharing
B. locates Wi-Fi assets
C. performs radio resource management
D. transmits unique and directional BLE beams

正解：D

解説：
Reference: https://www.mist.com/resources/ap61-access-point/
According to the Mist AP43 Access Point Data Sheet document, Mist's patented 16-element vBLE Antenna Array transmits unique and directional BLE beams when "engagement" is enabled. This feature allows for personalized location-based services such as wayfinding, proximity messaging, and asset tracking.
References: https://www.mist.com/wp-content/uploads/Mist-AP43-Data-Sheet.pdf

質問 # 128
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