CWNP CWNA-108 Online Practice Questions and Exam Preparation

CWNP CWNA-108 Online Questions & Answers

• Question 101:

  You must plan for POE in an office environment. Which one of these devices is least likely to be a POE PSE?

  A. Midspan multi-port injector
  B. Switch
  C. VolP Phone
  D. Midspan injector
  C. VolP Phone

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  Explanation/Reference:

  A VoIP phone is least likely to be a POE PSE of the devices listed. POE stands for Power over Ethernet, which is a technology that allows devices to receive both power and data over a single Ethernet cable. A POE PSE stands for Power Sourcing Equipment, which is a device that provides power to other devices over Ethernet. A POE PD stands for Powered Device, which is a device that receives power from a PSE over Ethernet. A midspan multi- port injector, a switch, and a midspan injector are examples of POE PSEs, as they can supply power to multiple devices over Ethernet cables. A VoIP phone is an example of a POE PD, as it can receive power from a PSE over an Ethernet cable. However, some VoIP phones can also act as POE PSEs for other devices, such as IP cameras or wireless access points, but this is not very common. References: CWNA-109 Study Guide, Chapter 8: Wireless LAN Access Points, page 2411

• Question 102:

  You are managing a wireless access point in autonomous mode using the Web based interface. You capture traffic during this management task and notice that you can see the HTML code of the Web pages used for access point management. What error in administration could be the cause of this security concern?

  A. IPsec is not in use of the management connection as recommended
  B. A VPN with the AP is not established
  C. WPA2 is disabled on the WLAN
  D. HTTP is in use instead of HTTPS
  D. HTTP is in use instead of HTTPS

• Question 103:

  Which IEEE 802.11 physical layer (PHY) specification includes support for and compatibility with both ERP and HR/DSSS?

  A. VHT (802.11ac)
  B. OFDM (802.11a)
  C. DSSS (802.11-Prime)
  D. HT (802.11n)
  D. HT (802.11n)

• Question 104:

  What ID is typically mapped to an AP's MAC address if a single BSS is implemented?

  A. VLAN ID
  B. BSSID
  C. Device ID
  D. SSID
  B. BSSID

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  Explanation/Reference:

  Reference https://technet.microsoft.com/en-us/library/cc757419(v=ws.10).aspx

• Question 105:

  Which directional antenna types are commonly used by indoor Wi-Fi devices in a MIMO multiple spatial stream implementation?

  A. Dipole and yagi
  B. Grid and sector
  C. Patch and panel
  D. Dish and grid
  C. Patch and panel

• Question 106:

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

• Question 107:

  What Linux shell command can be used to view the hardware and PHY capabilities of a wireless adapter in detail including channel widths, output power settings, channels supported, and more?

  A. ifconfig
  B. iw phy
  C. netsh wlan show device
  D. iwconfig
  D. iwconfig

• Question 108:

  You are deploying a WLAN monitoring solution that utilizes distributed sensor devices. Where should sensors be deployed for best results? Choose the single best answer.

  A. Every 20 feet and alongside each AP
  B. Closer to the APs
  C. Closer to the client devices
  D. IN critical areas where WLAN performance must be high
  C. Closer to the client devices

• Question 109:

  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. Devices will be released based on the draft amendment and the draft amendment features are 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.
  A. No impact: Until an amendment is ratified, it does not become part of the standard.

• Question 110:

  What can an impedance mismatch in the RF cables and connectors cause?

  A. Fewer MCS values in the MCS table
  B. Excessive VSWR
  C. Increased amplitude of the RF signal
  D. Increased range of the RF signal
  B. Excessive VSWR

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  Explanation/Reference:

  Reference: https://books.google.com.pk/books?id=uA68E68OqQgCandpg=PA235andlpg=PA235anddq=impedance +mismatch+in+the+RF+cables+and+connectors+causeandsource=blandots=WEynkTBqO1andsig=- Hm_d26REw_UrVZtz20xErL4Rgandhl=enandsa=Xandved=0ahUKEwj5rvW0j57ZAhVMzqQKHeCGB0kQ6AEISDAF#v=onepageandq=impedan ce%20mismatch%20in%20the%20RF%20cables%20and%20connectors%20causeandf=false