CWNP CWNP Certifications CWNA-108 Questions & Answers

• Question 51:

  In which plane of the three networking planes is an access point configured by a WLAN controlled?

  A. Control

  B. Management

  C. Security

  D. Data

  Correct Answer: B

• Question 52:

  What is an advantage of using WPA2-Personal instead of WEP-128 as a security solution for 802.11 networks?

  A. WPA2-Personal uses CCMP for encryption, and WEP-128 uses TKIP for encryption

  B. WPA2-Personal uses dynamic encryption keys, and WEP-128 uses static keys

  C. WPA2-Personal uses 802.1X/EAP for authentication, and WEP-128 uses preshared keys

  D. WPA2-Personal is based on IEEE 802.11 industry standards, but WEP is not

  Correct Answer: B

• Question 53:

  What standard is referenced in the 802.11-2016 specification and is recommended for robust WLAN client security?

  A. SSID hiding

  B. WEP

  C. 802.1X/EAP

  D. IPSec VPN

  Correct Answer: C

• Question 54:

  You are troubleshooting a problem with interference from a non-802.11 device. Given that the device is not a WLAN device, you cannot use a protocol analyzer and have chosen to use a spectrum analyzer. You want to view the signal from the interfering device over time to see the activity that is generating.

  What common spectrum analyzer view should you use for this analysis?

  A. Waterfall/Spectrogram

  B. Real-time FFT

  C. APs

  D. Clients

  Correct Answer: A

• Question 55:

  What primary metric of scanning can stations use to select the best AP for connectivity to the desired BSS?

  A. Signal strength of AP beacons received.

  B. PING latency when testing against an Internet server.

  C. FCS errors in frames transmitted to and from the AP.

  D. Throughput speed in Mbps.

  Correct Answer: A

• Question 56:

  You are configuring an access point to use channel 128. What important fact should be considered about this channel?

  A. It is a 22 MHz channel so it will overlap with the channels above and below it

  B. It is a 2.4 GHz frequency band 40 MHz channel, so it should not be used

  C. It is a channel that is unsupported by most access points

  D. It is a channel that likely requires DFS when used

  Correct Answer: D

• Question 57:

  A WLAN is implemented using wireless controllers. The APs must locate the controllers when powered on and connected to the network. Which one of the following methods is commonly used to locate the controllers by the APs?

  A. DHCP

  B. GRE

  C. NTP

  D. SNMP

  Correct Answer: A

  Reference https://books.google.com.pk/books?id=YEW0DAAAQBAJandpg=SA7-PA9andlpg=SA7-PA9anddq=methods+is +commonly+used+to+locate+the+controllers+by+the +APsandsource=blandots=O2sMDljjDVandsig=M1_gvQnGaWfGg13Pbb1xTkflklAandhl=enandsa=Xandved=0ahUKEwj 3hvmPoaLZAhWRPFAKHb5MAyQQ6AEIJzAA#v=onepageandq=methods%20is%20commonly%20used% 20to%20locate%20the% 20controllers%20by%20the%20APsandf=false

• Question 58:

  You are troubleshooting a controller-based AP that is unable to locate the controller. DHCP is not use and the controller is located at 10.10.10.81/24 while the AP is on the 10.10.16.0/24 network. What should be inspected to verify proper configuration?

  A. NTP

  B. BOOTH

  C. DNS

  D. AP hosts file

  Correct Answer: C

• Question 59:

  You are troubleshooting a WLAN problem and you suspect hidden node as the cause. What should you look for in a protocol analyzers?

  A. Frames with the HN bit set to 1

  B. Frames with the retry bit set to 0

  C. Frames transmitted from the AP without acknowledgement

  D. Retransmitted frames from multiple STAs at higher rates than other STAs

  Correct Answer: D

  Reference http://setup-wireless.blogspot.com/2008/11/wireless-hidden-node.html

• Question 60:

  You are planning for PoE in a standard office deployment. Which one of these devices is least likely to be a PoE PD?

  A. Video camera

  B. Access point

  C. VoIP phone

  D. Ethernet switch

  Correct Answer: D