JN0-250 Online Practice Questions and Answers

Which organization is responsible for certifying that products and technology satisfy Wi-Fi interoperability?

A. Wi-Fi Alliance

B. IETF

C. IEEE

D. ISO

Which Mist feature provides an overview of the user experience?

A. Service Level Expectations

B. Policy

C. Location Services

D. Insights

Which organization is responsible for creating the 802.11 standard?

A. Wi-Fi Alliance

B. Ethernet Technology Consortium

C. Institute of Electrical and Electronics Engineers (IEEE)

D. International Organization for Standardization (ISO)

Which Mist feature offers Al-based interactive troubleshooting?

A. Marvis

B. Wireless Assurance

C. Insights

D. Site Configuration

What does 802.11ac (Wi-Fi 5) specify as the maximum channel width?

A. 160 MHz

B. 60 MHz

C. 20 MHz

D. 40 MHz

What are three valid administrator roles that you would be able to assign to a user within an organization? (Choose three.)

A. Super User

B. View

C. Root User

D. Network Admin

E. Helpdesk

Marvis requires which subscription?

A. Wired Assurance

B. Asset Visibility

C. Virtual Network Assistant

D. Premium Analytics

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. co-channel interference

B. secondary coverage

C. primary coverage

D. data rate

What would cause 5 GHz interference?

A. Bluetooth

B. a wireless video camera

C. BLE

D. a microwave oven

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

Which two 802.11 amendments operate within the 2.4 GHz band? (Choose two.)

A. 802.11ax

B. 802.11ac

C. 802.11a

D. 802.11b

What are two characteristics of the 2.4 GHz band when compared to the 5 GHz band? (Choose two.)

A. shorter wavelength

B. lower frequency

C. less non-Wi-Fi interference

D. more congestion

Under ideal conditions, which frequency band will have the farthest usable range?

A. 900 MHz

B. 2.4 GHz

C. 5 GHz

D. 6 GHz

Referring to the exhibit, what do you determine about the site's Time to Connect SLE metric?

A. Successful connect averaged 1.6 seconds.

B. Eighty percent of the Time to Connect failures are related to DHCP failures.

C. All clients cannot connect to the Internet.

D. Time to Connect Association DHCP failures impacted 80% of users.

What is an 802.11 management frame transmitted by an AP?

A. echo request

B. ping

C. keepalive

D. beacon