CWNP CWNA-106 Online Practice Questions and Exam Preparation

CWNP CWNA-106 Online Questions & Answers

• Question 121:

  What facts are true regarding controllers and APs in a Split MAC architecture? (Choose 2)

  A. An IP tunnel is established between the AP and controller for AP management and control functions.
  B. Using centralized data forwarding, APs never tag Ethernet frames with VLAN identifiers or 802.1p CoS.
  C. With 802.1X/EAP security, the AP acts as the supplicant and the controller acts as the authenticator.
  D. Management and data frame types must be processed locally by the AP, while control frame types must be sent to the controller.
  E. In a distributed data forwarding model, the AP handles frame encryption and decryption.
  A. An IP tunnel is established between the AP and controller for AP management and control functions.
  E. In a distributed data forwarding model, the AP handles frame encryption and decryption.

• Question 122:

  A WLAN transmitter that emits a 200 mW signal is connected to a cable with 3 dB loss.

  If the cable is connected to an antenna with 10 dBi gain, what is the EIRP at the antenna element?

  A. 10 dBm
  B. 13 dBm
  C. 20 dBm
  D. 26 dBm
  E. 30 dBm
  E. 30 dBm

• Question 123:

  Prior to association, what parameter can 802.11 client devices measure and use to select the optimal access point for association?

  A. Signal strength of access point beacons received
  B. Proximity to potential access points
  C. Retry rate of probe request and responseframes
  D. Average round trip time to reach the Internet DNS server
  E. Average round trip time to reach the IP router
  A. Signal strength of access point beacons received

• Question 124:

  What statement about 802.3-2012, Clause 33 Power over Ethernet is true?

  A. Up to 30 watts of power may be provided through an Ethernetcable.
  B. By using CAT3 cabling, you can increase the maximum draw available to the PD.
  C. When using CAT5 cabling, you decrease the maximum draw available to the PD.
  D. Only endpoint PSEs are supported.
  E. Only midspan PSEs are supported.
  A. Up to 30 watts of power may be provided through an Ethernetcable.

• Question 125:

  ABC Company has a 2.4 and 5 GHz WLAN deployment. DFS functionality is enabled as required by the regulatory domain andAPs use DFS channels as long as radar is not detected. Band steering is also enabled to encourage dual-band clients to use frequency bands with more capacity.

  Your performance analysis shows that many dual-band VoWiFi client devices will move back and forth between 2.4 and 5 GHz as the users roam throughout the building. All APs have 2.4 and 5 GHz radios enabled with transmit power adjusted to accommodate relatively similar cell sizes.

  This "band hopping" behavior is viewed by network staff to be undesirable. What is the most likely cause of the unpredictable client band selection behavior?

  A. Interference from 5 GHz radar sources has increased frame corruption and retries on channels 36-48.
  B. 5 GHz frequencies offer better RF penetration than 2.4 GHz, but2.4 GHz offers more voice call capacity and lower latency than 5 GHz.
  C. The voice client does not support DFS, and therefore experiences some 5 GHz coverage holesas it moves through the network.
  D. The client's band selection algorithm prefers 5 GHz, butband steering behavior usually steers 75-85% of client devices to 2.4 GHz.
  C. The voice client does not support DFS, and therefore experiences some 5 GHz coverage holesas it moves through the network.

• Question 126:

  What feature(s) are most likely to be supported by 802.11 enterprise-class WLAN controllers? (Choose 4)

  A. Link aggregation / port trunking
  B. 802.1p and DSCP QoS
  C. BGP and Frame Relay
  D. Captive web portals
  E. IGMP snooping
  A. Link aggregation / port trunking
  B. 802.1p and DSCP QoS
  D. Captive web portals
  E. IGMP snooping

• Question 127:

  What problems may exist for a multiple channel architecture (MCA) WLAN when its APs are all operating at full power (typically 100mW)? (Choose 2)

  A. Wi-Fi enabled voice handsets with low transmit power can experience asynchronous downlink and uplink performance.
  B. WLAN client stations can experience the hidden node problem when located near each other within the same cell.
  C. The mismatched power between WLAN client stations and APs violates regulatory and IEEE signal quality requirements.
  D. Cell size may be too large, causing co-channel interference to adjacent cells and reducing system capacity.
  E. APs operating in the 2.4 GHz band wouldprevent microwave ovens and analog video cameras from functioning.
  A. Wi-Fi enabled voice handsets with low transmit power can experience asynchronous downlink and uplink performance.
  D. Cell size may be too large, causing co-channel interference to adjacent cells and reducing system capacity.

• Question 128:

  A Wi-Fi Alliance interoperability certificate indicates that a device is a/b/g/n certified. It further indicates one transmit and receive spatial stream for both the 2.4 GHz and 5.0 GHz bands. It further indicates support for both WPA and WPA2 Enterprise and Personal. Finally, it indicates support for EAP-TLS, EAP-TTLS/MSCHAPv2, PEAPv0/EAP- MSCHAPv2 and PEAPv1/EAP-GTC. Which one of the following statements is false?

  A. This client device supports protection mechanisms such as RTS/CTS and/or CTS-to- Self.
  B. This client device supports both TKIP and CCMP ciphersuites.
  C. 300 Mbps is the maximum supported data rate for this device.
  D. This client device supports X.509 certificates for EAP authentication.
  C. 300 Mbps is the maximum supported data rate for this device.

• Question 129:

  Which answer correctly completes the following sentence?

  The WMM certification, created by the Wi-Fi Alliance, is based on the ___________ coordination function with support for ___________ QoS priority.

  A. Hybrid, contention-based
  B. Point, scheduled
  C. Dynamic, distributed
  D. Distributed,trigger-and-delivery
  E. Enhanced, contention-free
  A. Hybrid, contention-based

• Question 130:

  The client devices that connect to your network include a mix of dual-band 802.11n and 802.11ac, single-band 802.11b/g/n, and some 802.11a/g/n. Your access points are configured with the same SSID on both the 2.4 and 5 GHz bands. The APs are also configured to prioritize client connectivity to 5 GHz.

  How does an AP perform band steering to encourage clients to use 5 GHz?

  A. When the client sends a probe request in the 2.4GHz band, the AP may reply with information about the 5 GHz BSS.
  B. The AP may ignore the initial probe requests or 802.11 authentication requests sent in the 2.4 GHz band by dual-band clients
  C. The AP may allow an 802.11 association with the client in the 2.4 GHz band, then send unicast channel switch announcements to the client announcing the 5 GHz channel as the new channel.
  D. The AP may allow an 802.11 association with the client in the 2.4 GHz band, then the AP may perform a transparent client handoff by transferring the client's MAC address to the 5 GHz radio.
  B. The AP may ignore the initial probe requests or 802.11 authentication requests sent in the 2.4 GHz band by dual-band clients