JN0-250 Online Practice Questions and Answers

What does RSSI measure?

A. frequency

B. signal strength

C. interference

D. noise

Which Juniper Mist device enables seamless roaming for large campus networks through on-premises tunneling?

A. Mist BT11

B. Mist AP43

C. Mist AP33

D. Mist Edge

Which two statements are correct about Marvis? (Choose two.)

A. Marvis is the main configuration tool.

B. Marvis lets you ask questions about your network.

C. Marvis will send custom reports.

D. Marvis can be used as a proactive monitoring tool.

Which SLE would you use to determine Wi-Fi interference?

A. AP Uptime

B. Roaming

C. Successful Connects

D. Capacity

Which Mist device is designed exclusively for Bluetooth Low Energy?

A. AP63

B. BT11

C. AP43

D. AP12

What would cause 5 GHz interference?

A. Bluetooth

B. a wireless video camera

C. BLE

D. a microwave oven

What would cause reduced Wi-Fi performance?

A. using 40 MHz channels on 5 GHz

B. using a PSK

C. using a single SSID

D. using too many SSIDs

Which statement is correct about Mist Edge?

A. Mist Edge extends select microservices to the customer premises.

B. Mist Edge must be deployed in the public cloud.

C. Mist Edge is a firewall.

D. Mist Edge is a VPN client.

Which site survey ensures that RF design requirements are satisfied?

A. passive

B. spectrum

C. real time

D. active

Which statement is correct about 802.11 wireless network interfaces?

A. Wireless NICs process all frames that are heard.

B. Wireless NICs use Carrier Sense Multiple Access Collision Detection.

C. Wireless NICs operate in full-duplex mode.

D. A wireless NIC only receives frames destined for it.