[Free] Download New Updated (February 2016) CWNP CWNA-106 Practice Tests 31-40

Ensurepass

QUESTION 31

In addition to throughput enhancements, what other improvements does a dual-band 802.11ac AP provide when compared with 802.11a/g APs? (Choose 2)

 

A.

Introduces “fast transition” roaming protocols for VoWiFi phones

B.

Better link reliability between 802.11a/b/g client devices and 802.11ac APs

C.

Improves service quality for real-time applications at greater distances

D.

Increases in receive sensitivity enhance RTLS location accuracy

E.

Stronger security with more robust encryption modes.

 

Correct Answer: BC

 

 

 

 

 

 

QUESTION 32

What factors are likely to cause the greatest impact on the application layer throughput of an 802.11n client station in a 2.4 GHz HT BSS? (Choose 3)

 

A.

Use of WEP or TKIP for encryption instead of CCMP

B.

Use of passphrase authentication instead of 802.1X/EAP authentication

C.

Increasing the beacon interval from 100 to 200 (TUs)

D.

RF interference from more than 10 nearby Bluetooth transmitters

E.

Increasing or decreasing the number of spatial streams in use by the client station and AP

 

Correct Answer: ADE

 

 

QUESTION 33

What factors will have the most significant impact on the amount of wireless bandwidth available to each station within a BSS? (Choose 2)

 

< td style="border-top-style: none; border-left-style: none; background: white; border-bottom-style: none; padding-bottom: 0cm; padding-top: 0cm; border-right-style: none; padding-left: 0cm; padding-right: 0cm" valign="top" width="708">

The data rates at which nearby client stations are transmitting and receiving data

A.

The number of client stations associated to the BSS

B.

The power management settings in the access point’s beacons

C.

The presence of co-located (10m away) access points on non-overlapping channels

D.

E.

The layer 3 protocol used by each station to transmit data over the wireless link

 

Correct Answer: AD

 

 

QUESTION 34

What are two channel modes specified by the 802.11n (High Throughput) PHY? (Choose 2)

 

A.

20 MHz

B.

20/40 MHz

C.

40/80 MHz

D.

22 MHz

E.

80 MHz

F.

160 MHz

 

Correct Answer: AB

 

 

QUESTION 35

In an 802.11 2.4 GHz system, what 22 MHz channels are considered non-overlapping? (Choose 2)

 

A.

Channels 5 and 10

B.

Channels 1 and 5

C.

Channels 3 and 7

D.

Channels 2 and 8

E.

Channels 8 and 11

F.

Channels 10 and 13

 

Correct Answer: AD

 

QUESTION 36

What facts are true regarding controllers and APs in a Split MAC architecture? (Choose 2)

 

A.

An IP tunnel is established between the AP and controller for AP management and control functions.

B.

Using centralized data forwarding, APs never tag Ethernet frames with VLAN identifiers or 802.1p CoS.

C.

With 802.1X/EAP security, the AP acts as the supplicant and the controller acts as the authenticator.

D.

Management and data frame types must be processed locally by the AP, while control frame types must be sent to the controller.

E.

In a distributed data forwarding model, the AP handles frame encryption and decryption.

 

Correct Answer: AE

 

 

QUESTION 37

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 GHz

B.

2.417 GHz

C.

2.422 GHz

D.

2.427 GHz

E.

2.437 GHz

 

Correct Answer: D

 

 

QUESTION 38

What answers correctly complete the following sentence?

 

____________ and ____________ carrier sense functions are used to determine if the wireless medium is busy. (Choose 2)

 

A.

Backoff

B.

Pseudo-random

C.

Virtual

D.

Active

E.

Physical

F.

Interframe

G.

Vector

 

Correct Answer: CE

 

 

QUESTION 39

In an 802.11n 2.4 GHz BSS, what prevents each station from using the full network bandwidth (e.g. 130 Mbps) for user data throughput when multiple clients are actively exchanging data with the AP? (Choose 2)

 

A.

Radio receiver hardware cannot process data as quickly as it can be transmitted.

B.

Half of the bandwidth is allocated to uplink traffic and half to downlink traffic.

C.

The DCF and EDCA coordination functions require backoff algorithms

D.

WLAN devices cannot detect collisions and must receive positive frame acknowledgment.

E.

APs do not have sufficient wired connection speeds to the LAN.

 

Correct Answer: CD

 

 

QUESTION 40

When a client station sends a broadcast probe request frame with a wildcard SSID, how do APs respond?

 

A.

After waiting a SIFS, all APs reply at the same time with a probe response.

B.

After waiting a SIFS, a designated AP sends an ACK, and then replies with a probe response.

C.

Each AP checks with the DHCP server to see if it can respond and then acts accordingly.

D.

For each probe request frame, only one AP may reply with a probe response.

E.

Each AP responds in turn after preparing a probe response and winning contention.

 

Correct Answer: E

 

Free VCE & PDF File for CWNP CWNA-106 Real Exam

Instant Access to Free VCE Files: CompTIA | VMware | SAP …
Instant Access to Free PDF Files: CompTIA | VMware | SAP …

This entry was posted in CWNA-106 Practice Tests (February 2016) and tagged , , , , , , , . Bookmark the permalink.