CWNP CWNA-106 Online Practice Questions and Exam Preparation

CWNP CWNA-106 Online Questions & Answers

• Question 111:

  In a single channel architecture (SCA) WLAN system, 802.11n (HT) APs should not share an SSID with 802.11g (ERP) APs. What is the reason for this recommendation?

  A. Client stations would see two different sets of AP capabilities as they roam between APs with the same BSSID.
  B. The added range of 802.11n APs would cause additional co-channel interference.
  C. The additional beacon material in 802.11n beacons wouldconfuse 802.11b/g client stations.
  D. Beacons from 802.11n APs use 40 MHz channels, while beacons from 802.11g APs use 20 MHz channels.
  A. Client stations would see two different sets of AP capabilities as they roam between APs with the same BSSID.

• Question 112:

  Which one of the following channels can be used for VHT transmissions?

  A. 11
  B. 6
  C. 48
  D. 1
  D. 1

• Question 113:

  In addition to throughput enhancements, what other improvements does a dual-band 802.11ac AP provide when compared with 802.11a/g APs? (Choose 2)

  A. Introduces "fast transition" roaming protocols for VoWiFi phones
  B. Better link reliability between 802.11a/b/g client devices and 802.11ac APs
  C. Improves service quality for real-time applications at greater distances
  D. Increases in receive sensitivity enhance RTLS location accuracy
  E. Stronger security with more robust encryption modes.
  B. Better link reliability between 802.11a/b/g client devices and 802.11ac APs
  C. Improves service quality for real-time applications at greater distances

• Question 114:

  What information is transmitted in the Beacon management frames of an HT access point to communicate about backward compatibility with ERP andHR/DSSS stations? (Choose 2)

  A. HT Protection mode
  B. Secondary channel offset
  C. RIFS mode
  D. Power save mode of clients
  A. HT Protection mode

• Question 115:

  As a station moves away from the access point to which it is associated, it changes its data rate from 600 Mbps to 540 Mbps and then to 450 Mbps.

  What IEEE 802.11 term or phase is used to describe this functionality?

  A. Dynamic Rate Switching
  B. Multirate Control
  C. Modulation and Coding Selection
  D. Rate Set Selectivity
  A. Dynamic Rate Switching

• Question 116:

  Your consulting firm has recently been hired to complete a site survey for a company. Your engineers use predictive modeling software forsurveying, but the company insists on a pre- deployment site visit. What task should be performed as part of the pre-deployment visit to prepare for a predictive survey?

  A. Evaluatethe building materials at ABC's facility and confirm that the floor plandocuments are consistent with the actual building.
  B. Test several antenna types connected to the intended APs for use in the eventual deployment.
  C. Collect information about the company's security requirements and the current configuration of their RADIUS and user database servers.
  D. Install at least one AP on each side of the exterior walls to test for co-channel interference through these walls.
  A. Evaluatethe building materials at ABC's facility and confirm that the floor plandocuments are consistent with the actual building.

• Question 117:

  What HT technology requires MIMO support on both the transmitter and receiver?

  A. Spatial multiplexing
  B. Shot guard intervals
  C. Maximal ratio combining
  D. Orthogonal Frequency Division Multiplexing
  A. Spatial multiplexing

• Question 118:

  What distinguishes an independent basic service set (IBSS) from an infrastructure basic serviceset (BSS)?

  A. An IBSS does not have a distribution system (DS), but a BSS does.
  B. An IBSS does not require beacon frames, but a BSS does.
  C. An IBSS does not support 802.11authentication or association, but a BSS does.
  D. An IBSS does not support any 802.11ac enhancements, but a BSS does.
  A. An IBSS does not have a distribution system (DS), but a BSS does.

• Question 119:

  You are the network administrator for ABC Company. Your manager has recently attended a wireless security seminar. The seminar speaker taught that a wireless network could be hidden from potential intruders if you disabled the broadcasting of the SSID in Beacons and configured the access points not to respond to Probe Request frames that have a null SSID field.

  Your manager suggests implementing these security practices. What response should you give to this suggestion? (Choose 2)

  A. Any 802.11 protocol analyzer can see the SSID in clear text inframes other than Beacons and Probe Responseframes. This negates any security benefit of trying to hide the SSID in Beacons and Probe Response frames.
  B. This security practice prevents manufacturers' client utilities from detecting the SSID. As a result,the SSID cannot be obtained by attackers, except through social engineering, guessing, or use of a WIPS.
  C. Although it does not benefit the security posture, hiding the SSID in Beacons and Probe Response frames can be helpful for preventing some users (such as guests) from attempting to connect tothe corporate network.
  D. Any tenants in the same building using advanced penetration testing tools will be able to obtain the SSID by exploiting WPA EAPOL-Key exchanges. This poses an additional risk of exposingthe WPA key.
  E. To improve security by hiding the SSID, the AP and client stations must both be configured to remove the SSID from association request and response frames. Most WLAN products support this.
  A. Any 802.11 protocol analyzer can see the SSID in clear text inframes other than Beacons and Probe Responseframes. This negates any security benefit of trying to hide the SSID in Beacons and Probe Response frames.
  C. Although it does not benefit the security posture, hiding the SSID in Beacons and Probe Response frames can be helpful for preventing some users (such as guests) from attempting to connect tothe corporate network.

• Question 120:

  In addition to coverage analysis results, what should be included in a site survey report to ensure WLAN users experience acceptable performance?

  A. Application Layer protocol availability analysisresults
  B. Layer 4 protocol availability analysis results
  C. Capacity analysis results
  D. WAN interface analysis results
  C. Capacity analysis results