Pass the CWNP CWNA CWNA-107 Questions and answers with CertsForce

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Questions # 1:

What statement about 802.11 WLAN bridges is true?

Options:

A.

WLAN bridges only work in the 2.4 GHz frequency band and they support only SISO communications


B.

WLAN bridges must use a channel with acceptable SNR at both transceivers to maintain the desired data rate bi-directionally


C.

WLAN bridges may support MIMO communications, but only if used in the 5 GHz frequency band


D.

WLAN bridges must be implemented such that no interference occurs on the channel anywhere between the two endpoints used to establish the bridge


Expert Solution
Questions # 2:

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

Options:

A.

Mesh Gate


B.

Mesh Switch


C.

Mesh Router


D.

Mesh Portal


Expert Solution
Questions # 3:

Your manager asked you to locate a solution that allows for centralized monitoring of WLAN performance over time. He wants a single pane of glass for administration and monitoring of the solution. What do you recommend?

Options:

A.

AP-based spectrum analysis


B.

Laptop-based spectrum analyzers


C.

Overlay WLAN monitoring solution


D.

Laptop-based protocol analyzers


Expert Solution
Questions # 4:

During a post-implementation survey, you have detected a non-802.11 wireless device transmitting in the area used by handheld 802.11g scanners. What is the most important factor in determining the impact of this non-802.11 device?

Options:

A.

Protocols utilized


B.

Channel occupied


C.

Receive sensitivity


D.

Airtime utilization


Expert Solution
Questions # 5:

What statement is true concerning the use of Orthogonal Frequency Division Multiplexing (OFDM) modulation method in IEEE 802.11 WLANs?

Options:

A.

OFDM was used by Frequency Hopping Spread Spectrum (FHSS) PHY devices.


B.

OFDM was first introduced in 802.11 and is used by the ERP, HT and VHT PHYs as well.


C.

OFDM implement BPSK modulation to allow for data rates up to 7 Gbps.


D.

OFDM modulation is used only in 5 GHz 802.11 transmissions.


Expert Solution
Questions # 6:

Option 43 must be configured to allow access points to locate controllers. In what network service should this option be configured?

Options:

A.

DHCP


B.

LDAP


C.

DNS


D.

RADIUS


Expert Solution
Questions # 7:

What statement about 802.11 WLAN bridges is true?

Options:

A.

WLAN bridges only work in the 2.4 GHz frequency band and they support only SISO communications


B.

WLAN bridges must use a channel with acceptable SNR at both transceivers to maintain the desired data rate bi-directionally


C.

WLAN bridges may support MIMO communications, but only if used in the 5 GHz frequency band


D.

WLAN bridges must be implemented such that no interference occurs on the channel anywhere between the two endpoints used to establish the bridge


Expert Solution
Questions # 8:

An RF sigma sometimes bends as it passes through some material other than free space. What is the term that describes this behavior?

Options:

A.

Reflection


B.

Refraction


C.

Scattering


D.

Warping


Expert Solution
Questions # 9:

Which unit of measurement is an absolute unit that is used to quantify received signal power levels on a logarithmic scale?

Options:

A.

dBm


B.

SNR


C.

RSSI


D.

VSWR


Expert Solution
Questions # 10:

Which IEEE 802.11 physical layer (PHY) specification includes support for and compatibility with both ERP and HR/DSSS?

Options:

A.

VHT (802.11ac)


B.

OFDM (802.11a)


C.

DSSS (802.11-Prime)


D.

HT (802.11n)


Expert Solution
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