CWNA-109 무료 덤프문제 온라인 액세스

When compared with legacy Power Save mode, how does VHT TXOP power save improve battery life for devices on a WLAN?

• A.VHT TXOP power save allows the WLAN transceiver to disable more components when in a low power state.
• B.VHT TXOP power save allows stations to enter sleep mode and legacy Power Save does not.
• C.VHT TXOP power save uses the partial AID in the preamble to allow clients to identify frames targeted for them.
• D.Legacy Power Save mode was removed in the 802.11ac amendment.

In an 802.11n (H T) 2.4 GHz BSS, what prevents each station from using all the airtime when other client stations are actively communicating in the same BSS?

• A.CSMA/CA
• B.CSMA/CD
• C.802.11 DOS prevention
• D.OFDMA

You are using a tool that allows you to see signal strength for all Aps in the area with a visual representation.
It shows you SSIDs available and the security settings for each SSID. It allows you to filter by frequency band to see only 2.4 GHz networks or only 5 GHz networks. No additional features are available.
What kind of application is described?

• A.Spectrum analyzer
• B.WLAN scanner tool
• C.Protocol analyzer
• D.Site survey utility

During a post-implementation survey, you have detected a non-802.11 wireless device transmitting in the area used by handheld 802.11g scanners. What is the most important factor in determining the impact of this non-
802.11 device?

• A.Channel occupied
• B.Protocols utilized
• C.Airtime utilization
• D.Receive sensitivity

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

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