JN0-250 Online Practice Questions and Answers

You have designed a WLAN to satisfy primary coverage, secondary coverage, and capacity requirements. However, you still do not have enough BLE radios to satisfy your location requirements. You want to fill the gaps with a low cost, BLE- only device.

Which Mist device will satisfy this requirement?

A. AP41

B. BT11

C. AP32

D. AP43

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. Use RF modelling software to design a WLAN to satisfy customer requirements.

C. Initially install 4-8 access points, then use the Mist capacity SLE to determine the remaining access point placements.

D. Place an access point every 8-15 meters in all areas requiring coverage.

You configured an 802.11n AP to use the 2.4 GHz frequency band and 20 MHz channel width.

In this scenario, how many non-overlapping channels are available for clients to use in Europe?

A. 11

B. 4

C. 1

D. 6

Marvis requires which subscription?

A. Wired Assurance

B. Asset Visibility

C. Virtual Network Assistant

D. Premium Analytics

A user is experiencing DNS problems.

In this scenario, where in the GUI would you be able to see the problems?

A. WLAN tab

B. Live View

C. Clients tab

D. Insights

You are troubleshooting a WLAN from a mobile handheld device that displays radio information. You see a signal on the same SSID from two separate access points (APs). AP A shows a signal strength of -57 dBm and AP B shows a signal strength of -72 dBm.

In this scenario, which statement is correct?

A. dBm is not a measure of signal strength.

B. The client's signal strength is not known.

C. Access point A has the stronger signal.

D. Access point B has the stronger signal.

Which underlying technology does Mist use to calculate BLE location?

A. trilateration

B. triangulation

C. probability surface

D. time of flight

Which two statements about the Mist UI are true? (Choose two.)

A. It can initiate a wireless packet capture.

B. It can initiate a wired packet capture.

C. It can initiate a BLE packet capture.

D. It can initiate a packet capture on cloud uplink.

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 increased by 10x.

B. Signal strength has decreased by 10x.

C. Signal strength has doubled.

D. Signal strength has halved.

Users are complaining about WLAN performance and the Mist dashboard reports non-Wi-Fi interference.

Which diagnostics tool would you use to further investigate this issue on-site and determine the location of the interference?

A. spectrum analyzer

B. protocol analyzer

C. wireless design software

D. WLAN scanner