Online Access Free CWNA-109 Practice Test

What channel width is defined as the default, and only mandatory, channel width for all 802.11 amendments prior to 802.11n?

• A.80 MHz
• B.40 MHz
• C.22 MHz
• D.20 MHz

Which regulatory domain organization is responsible for defining RF power and channel regulations for WLAN devices operating in the United States?

• A.ETSI
• B.FCC
• C.Wi-Fi Alliance
• D.IEEE

An IEEE 802.11 amendment is in the daft state. What impact does this draft amendment have on the 802.11 standard?

• A.Devices will be released based on the draft amendment and the draft amendment features are part of the standard.
• B.No impact: Until an amendment is ratified, it does not become part of the standard.
• C.The standard is changed to reflect the new capabilities as soon as an amendment enters the draft stage.
• D.No impact: Draft amendments do not become part of the standard until a working group is formed.

What frame type is used to reserve the wireless medium for the transmission of high data rate frames that may not be understood by all clients connected to the BSS?

• A.PS-Poll
• B.RTS
• C.ACK
• D.Beacon

What modulation and multiplexing technique, used by 802.11a/g/n/ac/ax, divides a wireless channel into multiple narrow, orthogonal subcarriers to transmit data in parallel?

• A.OFDM
• B.FHSS
• C.DSSS
• D.CCK