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

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Questions # 21:

Which one of the following 802.11 PHYs is more likely to be used in an industrial deployment but not likely to be used in standard office deployments?

Options:

A.

SIG


B.

VHT


C.

OFDM


D.

HT


Expert Solution
Questions # 22:

You are performing a post-implementation validation survey. What basic tool can be used to easily locate areas of high co-channel interference?

Options:

A.

Throughput tester


B.

Access point spectrum analyzer


C.

Laptop-based spectrum analyzer


D.

Wi-Fi scanner


Expert Solution
Questions # 23:

What 802.11 PHY uses available space in very low frequency ranges that is not in use at the time by broadcast video signals?

Options:

A.

DMG


B.

SIG


C.

DSSS


D.

TVHT


Expert Solution
Questions # 24:

What Linux shell command can be used to view the hardware and PHY capabilities of a wireless adapter in detail including channel widths, output power setting, channels supported, and more?

Options:

A.

ifconflg


B.

iw phy


C.

netsh wlan show device


D.

iwconflg


Expert Solution
Questions # 25:

You are evaluating a connection that states the data rate is 150 Mbps. What is the expected throughput of this connection?

Options:

A.

Less than 150 Mbps because of 802.11 overhead and contention


B.

54 Mbps because that is the actual maximum throughput of an 802.11 connection


C.

More than 150 Mbps because of compression


D.

150 Mbps because the data rate is equal to the throughput


Expert Solution
Questions # 26:

You are troubleshooting a WLAN problem and you suspect hidden node as the cause. What should you look for in a protocol analyzer?

Options:

A.

Frames with the HN bit set to 1


B.

Frames with the retry bit set to 0


C.

Frames transmitted from the AP without acknowledgement


D.

Retransmitted frames from multiple STAs at higher rates than other STAs


Expert Solution
Questions # 27:

What Linux shell command can be used to view the hardware and PHY capabilities of a wireless adapter in detail including channel widths, output power settings, channels supported, and more?

Options:

A.

ifconfig


B.

iw phy


C.

netsh wlan show device


D.

iwconfig


Expert Solution
Questions # 28:

What phrase defines Equivalent Isotropically Radiated Power (EIRP)?

Options:

A.

Power supplied from the transmission line to the antenna input


B.

The power output from the radio after cable losses


C.

The power output from the radio into the RF cable


D.

The highest RF signal strength that is transmitted from a given antenna


Expert Solution
Questions # 29:

What is the most effective method of testing roaming in relation to 802.11 VoIP handsets?

Options:

A.

Use the built-in roaming monitor built into all VoIP handsets.


B.

Use a protocol analyzer to capture the traffic generated when a laptop roams.


C.

Place a call with the handset and move around the facility to test quality during roaming.


D.

Use a spectrum analyzer to monitor RF activity during a VoIP call.


Expert Solution
Questions # 30:

What 802.11 PHY uses available space in very low frequency ranges that is not in use at the time by broadcast video signals?

Options:

A.

DMG


B.

SIG


C.

DSSS


D.

TVNT


Expert Solution
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