[2022年01月13日]JN0-250試験問題集、JN0-250練習テスト問題
無料で使えるJN0-250学習ガイド試験問題と解答
Juniper JN0-250 認定試験の出題範囲：
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質問 37
You are designing a wireless network that requires smooth roaming performance and redundant coverage from at least two access points at every location.
What ensures that both of these functional requirements are satisfied?
- A. primary coverage
- B. co-channel interference
- C. data rate
- D. secondary coverage
正解: C
質問 38
How should you design a WLAN to ensure optimal performance?
- A. Place one access point in every room and allow RRM to tune the power and channel settings.
- B. Place an access point every 8-15 meters in all areas requiring coverage.
- C. Initially install 4-8 access points, then use the Mist capacity SLE to determine the remaining access point placements.
- D. Use RF modelling software to design a WLAN to satisfy customer requirements.
正解: D
質問 39
Which organization is responsible for creating the 802.11 standard?
- A. Wi-Fi Alliance
- B. Institute of Electrical and Electronics Engineers (IEEE)
- C. Ethernet Technology Consortium
- D. International Organization for Standardization (ISO)
正解: B
質問 40
You are troubleshooting a signal strength issue when you notice that the signal strength changes from -70 to -73 dBm as you move from one room to another.
In this scenario, what is happening?
- A. Signal strength has doubled.
- B. Signal strength has halved.
- C. Signal strength has decreased by 10x.
- D. Signal strength has increased by 10x.
正解: C
質問 41
What does 802.11ac (Wi-Fi 5) specify as the maximum channel width?
- A. 60 MHz
- B. 40 MHz
- C. 20 MHz
- D. 160 MHz
正解: D
解説:
Reference:
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質問 42
By default, which statement is correct regarding the upstream interfaces configuration on a Mixtape?
- A. The interface is configured to use VLAN 10.
- B. The interface is configured as a trunk port and accepts only tagged traffic.
- C. The Interface is configured to send untagged traffic.
- D. The Interface is configured to use VLAN 11.
正解: B
質問 43
You are replacing an existing WLAN with a Mist Cloud-based WLAN.
Which statement is true about WLAN design in this scenario?
- A. You should always perform a full WLAN design for new equipment.
- B. WLAN designs are not needed with Mist artificial intelligence and machine learning.
- C. You only need to perform a new WLAN design if the requirements have changed.
- D. You do not need to create a new design if the existing WLAN design documentation is available.
正解: D
質問 44
Which statement is correct about channel bonding?
- A. Channel bonding combines two or more adjacent channels to increase throughput.
- B. A maximum of two channels can be bonded in the 5 GHz frequency.
- C. Channel bonding increases the total number of 20 MHz channels available in the 5 GHz frequency.
- D. Channel bonding combines two frequency bands together to increase operational efficiency.
正解: A
質問 45
Which Mist subscription is required for location tracking of Bluetooth badges?
- A. Asset Visibility
- B. Wi-Fi Assurance
- C. Virtual Network Assistant
- D. User Engagement
正解: A
質問 46
When would be the earliest opportunity to configure an access point (AP)?
- A. after the AP is online
- B. after the AP is claimed to inventory
- C. after the AP is installed
- D. after you are on the same network as the AP
正解: C
質問 47
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?
- A. virtual SSID
- B. multiple PSK
- C. SSID scheduling
- D. geofence
正解: C
質問 48
Under ideal conditions, which frequency band will have the farthest usable range?
- A. 2.4 GHz
- B. 6 GHz
- C. 900 MHz
- D. 5 GHz
正解: A
質問 49
When designing for a multiple frequency deployment (5 GHz and 2.4 GHz), which statement is correct?
- A. 802. 11ac is available in both frequency bands so the design frequency is not important.
- B. 5 GHz is a higher frequency and so will travel further and penetrate walls better.
- C. The coverage of the multiple bands at the same power will be identical.
- D. 5 GHz should generally be used for planning.
正解: B
質問 50
Which statement is correct about 802.11 wireless network interfaces?
- A. Wireless NICs use Carrier Sense Multiple Access Collision Detection.
- B. A wireless NIC only receives frames destined for it.
- C. Wireless NICs operate in full-duplex mode.
- D. Wireless NICs process all frames that are heard.
正解: A
質問 51
You have just brought online a new site of AP43s. While verifying that everything looks good, you notice that all of the access points (APs) are reporting "insufficient power." The APs are connected to an 802. 3at-capable switch.
In this scenario, what would be the cause of the error?
- A. The cable run to each AP is too long.
- B. LLDP-MED is not configured on the switch.
- C. The Ethernet cable is plugged into the wrong port on the AP.
- D. The APs' firmware must be upgraded.
正解: D
質問 52
A customer wants to physically wire their interior automated sliding doors to Mist APs to directly control location access to certain office areas.
In this scenario, which Mist AP capability allows them to accomplish this task?
- A. header pins
- B. audio sensor
- C. optical sensor
- D. IoT interface
正解: A
質問 53
Which site survey ensures that RF design requirements are satisfied?
- A. passive
- B. active
- C. real time
- D. spectrum
正解: D
質問 54
What would cause 5 GHz interference?
- A. a microwave oven
- B. a wireless video camera
- C. Bluetooth
- D. BLE
正解: B
質問 55
Which Juniper Mist device enables seamless roaming for large campus networks through on-premises tunneling?
- A. Mist AP43
- B. Mist AP33
- C. Mist BT11
- D. Mist Edge
正解: D
質問 56
Marvis requires which subscription?
- A. Premium Analytics
- B. Wired Assurance
- C. Asset Visibility
- D. Virtual Network Assistant
正解: D
質問 57
Which Mist feature offers Al-based interactive troubleshooting?
- A. Site Configuration
- B. Insights
- C. Wireless Assurance
- D. Marvis
正解: D
質問 58
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JN0-250試験問題集、JN0-250練習テスト問題：https://www.goshiken.com/Juniper/JN0-250-mondaishu.html