Practice Free JN0-253 Exam Online Questions
Which statement is correct about Bluetooth and BLE?
- A . BLE is an upgrade to Bluetooth.
- B . Bluetooth and BLE use the same radio channels.
- C . Bluetooth and BLE are compatible.
- D . BLE is a newer technology than Bluetooth.
In the U.S., which two UNII bands in the 5 GHz frequency overlap with DFS channels? (Choose two.)
- A . UNII-1
- B . UNII-3
- C . UNII-2
- D . UNII-2 Extended
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 . optical sensor
- C . audio sensor
- D . IoT interface
Over which port does an access point communicate with the Mist cloud?
- A . TCP/443
- B . TCP/53
- C . TCP/422
- D . TCP/8443
want to troubleshoot a wireless client that is no longer connected to a Mist AP.
Which area within the Mist GUI would you use?
- A . Clients ->App Clients
- B . Organization->Audit Logs
- C . Monitor -> Service Levels -> Insights
- D . Clients -> WIFI Clients
D
Explanation:
To troubleshoot a wireless client that is no longer connected to a Mist AP, you would navigate to the "Clients" section within the Mist GUI and select "WIFI Clients."
This area provides detailed information about all wireless clients that have connected to the Mist APs, including their connection history, performance metrics, and any issues encountered.
By examining the data available in the WIFI Clients section, network administrators can identify the root cause of connectivity problems and take appropriate actions to resolve them.
Reference: Juniper Networks documentation on Mist GUI and client troubleshooting procedures.
Which two signal strengths would provide good Wi-Fi performance? (Choose two.)
- A . -35 dBm
- B . -65 dBm
- C . -87 dBm
- D . -80 dBm
Which configuration object allows you to turn off the 2.4GHz radios on an AP?
- A . Organization Settings
- B . WLAN Template
- C . RF Template
- D . Wi-Fi Location Settings
Which step must you take when configuring rogue AP detection?
- A . Enable rogue AP detection.
- B . Set the proximity zones.
- C . Disable honeypot detection.
- D . Set the Radio Resource Management (RRM) interval.
A
Explanation:
Rogue AP Detection:
Rogue AP detection is crucial for maintaining network security by identifying unauthorized access points.
Configuration Step:
Enable Rogue AP Detection:
The first and necessary step in configuring rogue AP detection is enabling the feature in the Mist system.
Other Steps:
Setting proximity zones, disabling honeypot detection, and setting the RRM interval are additional configurations but not the initial or mandatory step. Conclusion:
The correct answer is A.
Reference: Mist Documentation on Rogue AP Detection: Mist Documentation
Alert templates are assigned to sites in which area of the Mist GUI?
- A . Organization Settings
- B . Alert Template Configuration
- C . Site Group
- D . Site Configuration
Which two Wi-Fi related SLEs are visible in the Mist UI? (Choose two.)
- A . Switch Health
- B . Capacity
- C . Application Health
- D . Throughput
B D
Explanation:
Wi-Fi Related SLEs in Mist UI:
SLEs (Service Level Expectations) help monitor and ensure Wi-Fi network performance.
Visible SLEs:
Capacity:
B: Capacity SLE monitors the network’s ability to handle the number of connected clients and their bandwidth requirements.
Throughput:
D: Throughput SLE measures the data transfer rates, ensuring that the network meets the expected performance levels.
Other Options:
Switch Health: Relates to wired network performance, not Wi-Fi.
Application Health: Generally focuses on application performance, not specifically Wi-Fi. Conclusion:
The correct answers are B and D.
Reference: Mist Documentation on Wi-Fi SLEs: Mist Documentation