Practice Free CWNA-109 Exam Online Questions
Which medium contention and access method is used as the foundation of 802.11 Distributed Coordination Function (DCF)?
- A . Carrier Sense Multiple Access with Collision Detection (CSMA/CD)
- B . Carrier Sense Multiple Access with Collision Avoidance (CSMA/CA)
- C . Token passing
- D . Demand priority
The Fresnel zone should not be blocked by more than what percentage to maintain a reliable communications link?
- A . 20 percent
- B . 40 percent
- C . 50 percent
- D . 60 percent
When using a hotspot, you should do which of the following to ensure security back to your corporate network?
- A . Enable WEP.
- B . Enable 802.1X/EAP.
- C . Use an IPsec VPN.
- D . Security cannot be provided because you do not control the access point.
When a client moves to a new BSS within an ESS, what steps are part of the 802.11 reassociation process? (Choose 2)
- A . The client station transmits a Reassociation Request frame to its current access point.
- B . The current access point informs the IP gateway of the reassociation.
- C . The current access point triggers the client’s reassociation service.
- D . The new access point transmits a Reassociation Response to the client station with a status value.
- E . The client and new access point create unicast encryption keys.
- F . The client station transmits a deauthentication frame to the current access point.
At which layer of the OSI model will a BSSID address be used?
- A . Physical
- B . Network
- C . Session
- D . Data-Link
- E . Application
The Crocker company has generated a visual model of RF coverage for its corporate headquarters by using predictive modeling site survey software. The next step requires validation with a manual site survey.
What modeling parameters should be validated during the manual site survey? (Choose all that apply.)
- A . AP placement and power settings
- B . Throughput
- C . Coverage boundaries
- D . Encryption settings
- E . Roaming parameters
At which layers of the OSI model does 802.11 technology operate? (Choose all that apply.)
- A . Data-Link
- B . Network
- C . Physical
- D . Presentation
- E . Transport
What type of information can be seen on a mobile device that is monitored by an MDM server? (Choose all that apply.)
- A . SMS messages
- B . Battery life
- C . Web browsing history
- D . Installed applications
- E . Device capacity
Which one of the following channels can be used for VHT transmissions?
- A . 44
- B . 1
- C . 7
- D . 13
Which technology has a greater tolerance of delay spread?
- A . DSSS
- B . FHSS
- C . OFDM
- D . HR-DSSS