[Free] Download New Updated (February 2016) CWNP CWNA-106 Practice Tests 71-80

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QUESTION 71

In a Wi-Fi client configuration utility, what feature is most likely to be user configurable?

 

A.

802.1p to WMM mappings

B.

SNMPv3 Users

C.

WMM-PS Dozing Interval

D.

RADIUS Server IP Address

E.

EAP Authentication Type

 

Correct Answer: E

< font face="Arial">QUESTION 72

What is a common feature of an 802.11 WLAN client utility? (Choose 2)

 

A.

Real-time retry monitor

B.

AP Signal strength meter

C.

Spectrum analyzer utility

D.

VLAN configuration

E.

Link statistics display

 

Correct Answer: BE

 

 

QUESTION 73

What features are most often configurable within 802.11 WLAN client utilities? (Choose 2)

 

A.

Frame generator utility

B.

Power management

C.

Co-channel interference threshold

D.

Roaming aggressiveness

E.

AES key and block size

 

Correct Answer: BD

 

 

QUESTION 74

As a consultant, you have been hired by ABC Company to implement an outdoor WLAN connection between two buildings that are 2 kilometers (1.24 miles) from each other, with no obstructions in between.

 

Your first required objective is to create a point-to-point link between the two buildings within the local regulatory body’s 800 mW EIRP maximum.

 

Your second required objective is to provide an industry-standard security solution capable of supporting mutual authentication.

 

As an optional objective, you must minimize the amount of interference from, and to, nearby WLAN networks.

 

You install an OFDM wireless bridge at each building, configuring one in root mode and the other in non-root mode. You set each radio for 100 mW (20 dBm) and attach 9 dBi omni-directional antennas to both. You configure the network for WPA2-Enterprise with PEAPv0/EAP-MSCHAPv2 authentication.

 

Which statement is true about the solution you chose to deploy?

 

A.

Your solution meets both required objectives and the optional objective.

B.

Your solution meets the first required objective and the optional objective, but not the second objective.

C.

Your solution meets the second required objective and the optional objective, but not the first required objective.

D.

Your solution meets neither required objective but meets the optional objective.

E.

Your solution meets both required objectives, but does not meet the optional objective.

F.

Your solution does not meet either required objective, or the optional objective.

Correct Answer: E

 

 

QUESTION 75

Lynne runs a small hotel, and as a value added service for her customers she has implemented a Wi-Fi hot-spot. Lynne has read news articles about how hackers wait at hot-spots trying to take advantage of unsuspecting users. She wants to avoid this problem at her hotel. What is an efficient and practical step that Lynne can take to decrease the likelihood of active attacks on her customers’ wireless computers?

 

A.

Implement Network Access Control (NAC) and require antivirus and firewall software along with OS patches

B.

Require EAP-FAST authentication and provide customers with a username/password on their receipt

C.

Implement an SSL VPN in the WLAN controller that initiates after HTTPS login

D.

Enable station-to-station traffic blocking by the access points in the hotel

 

Correct Answer: D

 

 

QUESTION 76

ABC Hospital is planning a Wi-Fi infrastructure upgrade where the 802.11b/g APs (HR/DSSS and ERP) would be replaced with new dual-radio 802.11n/802.11ac (HT and VHT) APs. ABC wants to minimize the time and cost associated with performing a new site survey, so they will be mounting all of the new APs in the same locations and with the same cable drops as the existing APs. What is one performance drawback with this deployment method?

 

A.

Multipath will increase, causing excessive layer-2 retransmissions. The retransmissions will cause latency for VoWiFi handsets.

B.

Increased receiver sensitivity on the VHT APs will cause them to continually change channels to avoid co-channel interference.

C.

If the existing UTP cabling is not Category 3 or better, the total Ethernet backhaul for each AP will be limited to 100 Mbps.

D.

The existing WLAN plan, including the AP locations, may not provide the benefits seen in HT and VHT 802.11 PHY capabilities.

 

Correct Answer: D

 

 

QUESTION 77

For what likely reasons might an organization choose to purchase an AP designed for outdoor deployment to use as an indoor WLAN AP at an industrial facility? (Choose 2)

 

A.

Aesthetic requirements

B.

Physical security and theft prevention

C.

Protection from environmental conditions

D.

Reduce transient RF interference

E.

802.11 security compliance

 

Correct Answer: BC

 

 

 

 

QUESTION 78

What causes of hidden nodes within a BSS would be more likely lead to an increase in collisions and retries? (Choose 2)

 

A.

Data frames too large for the physical environment

B.

Client stations broadcasting with too much power

C.

Access points broadcasting with too little power

D.

Client stations too close in proximity to each other

E.

Obstacles between client stations causing attenuation

F.

Large 802.11 cells with physically distributed stations

 

Correct Answer: EF

 

 

QUESTION 79

If an 802.11 RF transmission reaches a receiving antenna simultaneously by direct and reflected paths, what effect will the reflected signal have on the signal that took the direct line-of-sight path?

 

A.

The direct signal will only be received if the reflected signal is more than 180 degrees out of phase.

B.

The direct signal cannot be received if the indirect signal is less than 90 degrees out-of-phase.

C.

The signals will be distorted if the indirect signal arrives simultaneously at the receiver, but 90 degrees out-of-phase.

D.

If the signals are in-phase, they will combine together, cancel one another out, and create a null.

 

Correct Answer: C

 

 

QUESTION 80

Two co-located 802.11b/g/n APs can interfere with one another and cause contention and collisions, even when the two APs are operating on non-overlapping channels (e.g. 1 & 6). What deployment flaw could cause this problem? (Choose 2)

 

A.

The access points are mounted too closely to one another.

B.

Reflective objects in the area are causing significant multipath.

C.

A client station is using active scanning to probe for access points on multiple channels.

D.

The output power on the access points is too high.

E.

A client station authenticates to both access points, but does not associate.

F.

The access points are not synchronized to the same NTP server.

 

Correct Answer: AD

 

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