CWNA-106 Practice Test

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

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

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

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.

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