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

A. Long slot times

B. DTIM Interval

C. Listen Interval

D. Probe Request frames

E. RTS or CTS frames

As a consultant, you've been hired by XYZ Company to provide recommendations about client device selection, operation, and interoperability. What information should be considered to help them choose the right WLAN client devices?

A. 802.11n OFDM is more susceptible to high-power, narrowband interference than 802.11a OFDM.

B. In order to earn Wi-Fi Alliance certification, 802.11n clients stations are required to support both 2.4 and 5 GHz frequencies

C. 802.11a/g devices may support WMM, but all 802.11n devices are required to support WMM.

D. An 802.11g/n AP that is configured to support only OFDM data rates will allow HR/DSSS devices to associate.

E. When HR/DSSS devices are present, HT MCS rates are disabled for the entire BSS.

What can cause an excessively high VSWR (Voltage Standing Wave Ratio) in a WLAN RF transmission line?

A. An impedance mismatch in the RF cables and connectors

B. Reflected direct current (DC) voltage on the main RF signal line

C. Attenuation of the RF signal as it travels along the main signal path

D. Crosstalk (inductance) between adjacent RF conductors

What three cipher suites are specified by the IEEE 802.11-2007 standard? (Choose three)

A. Counter Mode with CBC-MAC Protocol

B. Wi-Fi Protected Access v1 and v2

C. Internet Protocol Security

D. Extensible Authentication Protocol

E. Internet Key Exchange v2

F. Wired Equivalent Privacy

G. Temporal Key Integrity Protocol

What terms accurately complete the following sentence? The IEEE 802.11-2007 standard specifies mandatory support of the ___________ cipher suite for Robust Security Network Associations, and optional use of the ___________ cipher suite, which is designed for use with pre-RSNA hardware.

A. CCMP, TKIP

B. 802.1X/EAP, WEP

C. TLS, SSL

D. CCKM, WPA

E. RC5, RC4