CWNA-106 Practice Test

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.

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

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

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.

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

E.

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

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

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