JN0-451合格させる問題集でJuniper24時間で試験合格できます
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Juniper JN0-451試験は、Mist AI - Specialist (JNCIS-MistAI)試験としても知られており、JuniperのMist AIワイヤレスネットワーキングソリューションの展開、設定、管理におけるスキルと専門知識を検証したいITプロフェッショナル向けに設計されています。この認定試験は、JuniperのMist AIワイヤレスネットワーキング技術を扱う人々が、これらのソリューションの設定、展開、管理における熟練度を証明したいと考えている場合に向けられています。JN0-451試験に合格することは、上位レベルのJNCIPおよびJNCIE認定の前提条件となります。
Juniper JN0-451（Mist AI-Specialist（JNCIS-Mistai））認定試験は、MIST AIテクノロジーの分野を専門としているIT専門家にとって貴重な認定です。認定試験は、AI駆動型ネットワークの展開、構成、トラブルシューティングに精通している専門家のスキルと知識を検証し、AI駆動型ネットワークの実装と維持を検討している組織から非常に人気のあるものにします。
質問 # 36
Which two authentication methods would be used with a guest portal? (Choose two.)
- A. external portal
- B. Kerberos
- C. RSA
- D. social login
正解：A、D
解説：
Explanation
Two authentication methods that would be used with a guest portal are social login and external portal. So the correct answers are A. social login and B. external portal.
質問 # 37
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. Custom Rates
- C. Compatible
- D. No Legacy
正解：C
解説：
The Compatible WLAN data rate setting is required for legacy 2.4 GHz scanners to connect to the WLAN.
According to the Data Rates - Mist document4, the WLAN data rate setting that is required for legacy 2.4 GHz scanners to connect to the WLAN is Compatible. This setting enables all data rates from 1 Mbps to 54 Mbps for both 2.4 GHz and 5 GHz bands. This setting is recommended for legacy devices that need low data rates to connect.
質問 # 38
Referring to the exhibit, what is the site ID?
- A. 02e208b2d34f
- B. 978c48e6-6ef6-11e6-8bbf-02e208b2d34f
- C. 9777c1a0-6ef6-11e6-8bbf-02e208b2d34
- D. 02e208b2d34
正解：B
質問 # 39
Referring to the exhibit, what are two reasons why a Mist AP would have multiple IP addresses? (Choose two.)
- A. One IP address is used for control traffic and one address is used for management traffic.
- B. The Local Status Page is enabled in the site settings.
- C. A guest portal is configured on a tagged VLAN.
- D. One IP address is used for redundancy.
正解：A、C
質問 # 40
Which two SLEs measure the amount of time that it takes for a process to complete? (Choose two.)
- A. roaming
- B. AP uptime
- C. throughput
- D. time to connect
正解：A、D
解説：
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.
質問 # 41
Click the Exhibit button.
Referring to the exhibit, what would a guest user be able to do?
- A. Use Gmail and Slack.
- B. Use only the Intranet.
- C. Use the HP Printer and Internet.
- D. Use the Internet, except for Gmail and Slack.
正解：D
解説：
A firewall is a network security system that monitors and controls incoming and outgoing network traffic based on predetermined security rules. It typically establishes a barrier between a trusted internal network and an untrusted external network, such as the Internet .
質問 # 42
Which Wireless Assurance SLE has classifiers of Association, Authorization, DHCP, and Internet Services?
- A. Coverage
- B. Roaming
- C. Capacity
- D. Time to Connect
正解：D
解説：
Explanation
The Wireless Assurance SLE that has classifiers of Association, Authorization, DHCP, and Internet Services is Time to Connect. So the correct answer is C. Time to Connect.
質問 # 43
Which Wireless Assurance SLE provides information on Opportunistic Key Caching (OKC)?
- A. Coverage
- B. Capacity
- C. Roaming
- D. Time to Connect
正解：C
質問 # 44
Regarding roaming, which device determines when it is time to connect to another AP?
- A. the primary AP
- B. the client device
- C. the gateway router
- D. the current AP
正解：B
解説：
Explanation
Regarding roaming, it is ultimately up to the client device to determine when it's time to connect to another AP based on signal strength and other factors such as network congestion or interference. So the correct answer is B. The client device.
質問 # 45
Which two terms correctly describe transmissions over Wi-Fi? (Choose two.)
- A. half-duplex
- B. shared medium
- C. full-duplex
- D. point-to-point medium
正解：A、B
解説：
Explanation
Transmissions over Wi-Fi are shared medium and half-duplex.
質問 # 46
Which two Mist Aps would be used for BLE location? (Choose two.)
- A. AP33
- B. AP32
- C. AP12
- D. AP43
正解：A、D
解説：
Explanation
P33 and AP43 are Mist APs that can be used for BLE location.
質問 # 47
Which two statements are correct about the radio frequency rule of 10s and 3s? (Choose two.)
- A. If the signal strength decreases by 10 dB, the power decreases tenfold.
- B. If the signal strength decreases by 10 dB, the power is halved.
- C. If the signal strength increases by 3 dB, the power is tripled.
- D. If the signal strength increases by 3 dB, the power is doubled.
正解：A、D
解説：
Explanation
According to the radio frequency rule of 10s and 3s, for every loss or gain of 10 dBm, you divide or multiply the power in mW by 10. For every loss or gain of 3 dBm, you divide or multiply the power in mW by 2 1.
https://www.controleng.com/articles/radio-math/
質問 # 48
Regarding the seven layer OSI networking model, which two layers are different between Ethernet and Wi-Fi? (Choose two.)
- A. physical layer
- B. media access control (MAC) sub-layer
- C. network layer
- D. logical link control (LLC) sub-layer
正解：A、B
解説：
According to the Lecture 3 - Radio Frequency and Antenna Fundamentals - Part 2 document3, two layers that are different between Ethernet and Wi-Fi in the OSI networking model are:
Media access control (MAC) sub-layer, which is part of the data link layer and defines how devices access and share the wireless medium.
Physical layer, which defines how data is encoded and transmitted over the wireless medium.
質問 # 49
Under which hierarchy level would you create a new site configuration?
- A. access points
- B. organization
- C. clients
- D. location
正解：D
解説：
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.
質問 # 50
The customer wants to broadcast a WLAN at a certain time and day of the week.
Which statement is correct in this scenario?
- A. SSID scheduling should be configured.
- B. APs need to be upgraded for this feature.
- C. Mist supports this function with an additional subscription.
- D. Third-party integration is required to achieve this requirement.
正解：A
質問 # 51
Which two statements are true about 802.1X/EAP? (Choose two.)
- A. Credentials are exchanged with a RADIUS server prior to the 4-way Handshake.
- B. Credentials are exchanged with a RADIUS server prior to the 802.11 Association.
- C. Credentials are exchanged with a RADIUS server after the 4-way Handshake.
- D. Credentials are exchanged with a RADIUS server after the 802.11 Association.
正解：A、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 # 52
What are two ways to access Marvis? (Choose two.)
- A. Use config templates.
- B. Use the conversational assistant.
- C. Use Actions.
- D. Use Insights.
正解：B、C
解説：
According to the Cisco Catalyst 9800 Series Wireless Controller Software Configuration Guide1, there are two ways to access Marvis, which is a virtual network assistant that provides insights and troubleshooting for wireless networks:
Use the conversational assistant, which allows you to ask natural language questions and get answers from Marvis.
Use Actions, which are predefined queries that you can select from a list and get results from Marvis.
質問 # 53
What are basic data rates?
- A. fastest data rates
- B. required data rates
- C. disabled data rates
- D. optional data rates
正解：B
解説：
Explanation
Basic data rates are the required data rates that all devices on a wireless network must support in order to connect to the network. These rates are used for management and control frames and can affect the performance of the network.
質問 # 54
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