CWNA-107 Online Practice Questions and Answers

The BSA of an AP covers the area used by the sales and marketing department. Thirty-five stations operate in this space. The users indicate that they need more throughput and all stations are 5 GHz capable 802.11ac clients. The current AP configuration uses 20 MHz channels in both 2.4 GHz and 5 GHz. What is the least expensive solution available for increasing throughput for these users without implementing configuration options that are not recommended?

A. Use a 160 MHz channel on the 5 GHz radio

B. Use a 40 MHz channel on the 5 GHz radio

C. Install a second AP in the coverage area

D. Use a 40 MHz channel on the 2.4 GHz radio

When using a spectrum to look for non Wi-Fi interference sources, you notice significant interference across the entire 2.4 GHz band (not on a few select frequencies) within the desktop area of a users workspace, but the interference disappears quickly after just 2 meters. What is the most likely cause of this interference?

A. USB 3 devices in the user's work area

B. Bluetooth devices in the user's work area

C. Excess RF energy from a nearby AP

D. Unintentional radiation from the PC power supply

A natural disaster has occurred in a remote area that is approximately 40 miles from the response team headquarters. The response team must setup a local wireless network using 802.11 WLAN access points. What is the best method, of those listed, for implementation of network backhaul for communications across the Internet in this scenario?

A. Temporary wired cable

B. 802.11 bridging

C. Cellular/LTE

D. Temporary wired DSL

What primary metric of scanning can stations use to select the best AP for connectivity to the desired BSS?

A. Signal strength of AP beacons received.

B. PING latency when testing against an Internet server.

C. FCS errors in frames transmitted to and from the AP.

D. Throughput speed in Mbps.

The center frequency of channel 1 in the 2.4 GHz band is 2.412 GHz (2412 MHz). What is the center frequency of channel 4?

A. 2.413

B. 2.427

C. 2.422

D. 2.417

A non-802.11 device is suspected of causing interference on the WLAN. You are not certain of the location or type of device. What is the best solution for locating this non-802.11 device?

A. Access point spectrum analyzer

B. Laptop-based spectrum analyzer with an omni-directional antenna

C. Laptop-based spectrum analyzer with a directional antenna.

D. Laptop-based spectrum analyzer with an omni-directional antenna.

You are deploying a WLAN with the access points configured for 10 mW of output power on the 2.4 GHz radios and 20mW of output power on the 5GHz radios. Some semi-directional antennas are also in use. What kind of deployment is described?

A. High density

B. SOHO

C. Standard office

D. Residential

Which one of the following channels can be used for VHT transmissions?

A. 44

B. 1

C. 7

D. 13

What security method is commonly used for VoIP handsets when the infrastructure does not support OKC or FT roaming?

A. WPA2-Enterprise with EAP-TTLS

B. WPA2-Enterprise with EAP-TLS

C. WPA2-Enterprise with PEAP

D. WPA2 -Personal

In a mesh BSS (MBSS), according to the 802.11-2016 standard, what device connect the mesh to an Ethernet network?

A. Mesh Gate

B. Mesh Switch

C. Mesh Router

D. Mesh Portal