CWNA-106 Online Practice Questions and Answers

What information is transmitted in the Beacon management frames of an HT access point to communicate about backward compatibility with ERP andHR/DSSS stations? (Choose 2)

A. HT Protection mode

B. Secondary channel offset

C. RIFS mode

D. Power save mode of clients

The network administrator at XYZ Company recently attended a training class on wireless security and realized that heshould update the corporate security policy to address WLAN technology. The network administrator is listing the items that should be addressed in the security policy update, and has asked for your input.

What WLAN topics should be addressed by a companysecurity policy? (Choose 3)

A. Theft prevention and data security of WLAN infrastructure devices

B. Wireless intrusion monitoring and response procedures

C. WLAN performance analysis baseline documentation

D. Wired network performance analysis andbaseline documentation

E. Training of the IT staff on WLAN operational security

F. User density planning and AP client association thresholds

A WLAN transmitter that emits a 200 mW signal is connected to a cable with 3 dB loss.

If the cable is connected to an antenna with 10 dBi gain, what is the EIRP at the antenna element?

A. 10 dBm

B. 13 dBm

C. 20 dBm

D. 26 dBm

E. 30 dBm

The OSI model is a 7-layer model forunderstanding the functions of a communication system. What OSI sublayers are specifically addressed by the IEEE 802.11-2012 standard? (Choose 2)

A. Network

B. PPDU

C. PLCP

D. MAC

E. IP

F. Transport

Why is it recommended for a wireless network administrator to disable 1 Mbps and 2 Mbps data rates on the WLANinfrastructure? (Choose 2)

A. To improve capacity in the BSS

B. To reduce the size of the AP's effective service area

C. Toprevent 802.11b devices from associating

D. To maximize the range of the highest data rates

E. To prevent VoWiFi multicast frames

F. To enable support for long preambles

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 component of the 802.11 standard allows stations to reserve access to the RF medium for a specified period of time?

A. Short guard intervals

B. DTIMInterval

C. Listen Interval

D. Probe Request frames

E. RTS or CTS frames

In an 802.11n WLAN with a heterogeneous set of associated client devices including 802.11b, 11g, and 11n, what HT protection mode will theBSS use?

A. Mode 0: No protection mode (Greenfield)

B. Mode 1: Nonmember protection mode

C. Mode 2: 20 MHz protection mode

D. Mode 3: Non-HT mixed mode

What feature was introduced in the 802.11h amendment in order to uphold regulatory requirements for 5 GHz operations.

A. 256-QAM

B. Distributed Coordination Function (DCF)

C. Transmit Power Control(TPC)

D. Radio Resource Management (RRM)

In an infrastructure Basic Service Set (BSS), how does the passive scanning process occur?

A. Access pointsbroadcast Beacons on all channels of each radio within the regulatory domain. Nearby client stations record information found in the Beacons for use in the association process.

B. Client stations broadcast Probe Request frames on all supportedchannels inthe regulatory domain. Nearby access points respond with Probe Response frames. Client stations record information in the Probe Response frames for use in the association process.

C. Client stations broadcast Probe Request frames on the singlechannel forwhich they are programmed. Nearby access points respond on that channel with Probe Response frames. Client stations record information found in the Probe Response frames for use in the association process.

D. Access points broadcast Beacons on asingle channel for which they are programmed. Nearby client stations listen for Beacon frames and record information found in the Beacons for use in the association process.