CWNP CWNP Certification CWNA-108 Questions & Answers

• Question 31:

  What non-standard WLAN solution attempts to give a longer transmission windows to devices with higher data rates than devices with lower data rates?

  A. AirTime Faimess

  B. Band Steering

  C. ARM

  D. RRM

  Correct Answer: A

• Question 32:

  A standard PoE injector is use to power an access point requiring 802.3at. CAT6 cabling is in use. What is the maximum distance supported between the access point and the Ethernet switch with the use of a midspan power injector?

  A. 100 meters

  B. 300 meters

  C. 328 meters

  D. 200 meters

  Correct Answer: A

• Question 33:

  You administer a WLAN that offers a guest SSID of GUESTNWORK. User connect to the GUESTNWORK SSID, but report that they cannot browse the internet. The devices simply report no internet connection. What common problem causes this scenario?

  A. NTP issues

  B. Hardware issues

  C. IP routing issues

  D. Captive portal issues

  Correct Answer: C

• Question 34:

  You recently purchased four laptops containing dual-band 802.11ac adapters. The laptops can connect to your 2.4 GHz network, but they cannot connect to the 5 GHz network. The laptops do not show the 5 GHz SSIDs, which are different that the 2.4 GHz SSIDs. Existing devices can connect to the 5 GHz SSIDs with no difficulty. What is the likely problem?

  A. Interference from no-Wi-Fi sources

  B. Faulty drivers

  C. DoS attack

  D. Interference from other WLANs

  Correct Answer: D

• Question 35:

  In an 802.11n 2.4 GHz BSS, what prevents each station from using the full network data rate (e.g. 216.7 Mbps) for user data when multiple clients are actively exchanging data with the AP?

  A. Half of the bandwidth is allocated to uplink traffic and half to downlink traffic

  B. All data frames must be acknowledged and the medium is shared

  C. Radio receiver hardware cannot process data is quickly as it can be transmitted

  D. APs do not have sufficient wired connection speeds to the LAN, even at 1 Gbps connections, with 802.11n and earlier APs

  Correct Answer: B

• Question 36:

  You are evaluating access points for use in the 5 GHZ frequency band. What PHY supports this band and supports 80 MHz channels?

  A. OFDM

  B. HT

  C. VHT

  D. ERP

  Correct Answer: C

  Reference https://www.cwnp.com/802-11ac-vht-just-the-facts/

• Question 37:

  You are using a site survey tool for post-implementation validation. You have installed the appropriate adapter driver and imported a floor plan. Now, you want to take the next step in proper tool use. What must you do before gathering survey data after the floor plan is imported?

  A. Install iPerf

  B. Install WinPCAP

  C. Calibrate the floor plan D. Nothing, you can simply start capturing signal readings

  Correct Answer: C

• Question 38:

  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.

  Correct Answer: A

• Question 39:

  You are reconfiguring an AP to use the short guard interval. How long will the new guard interval duration be after the change?

  A. 400 ns

  B. 10 ms

  C. 800 ns

  D. 104 ms

  Correct Answer: A

  Reference https://www.sonicwall.com/en-us/support/knowledge-base/170504672960493

• Question 40:

  When using an RF splitter to connect one transceiver to sector antennas loss is incurred. What is this loss called?

  A. Conversion loss

  B. Intentional loss

  C. Through loss

  D. Active loss

  Correct Answer: C