CWNP CWNA CWNA-107 Questions & Answers

• Question 41:

  Option 43 must be configured to allow access points to locate controllers. In what network service should this option be configured?

  A. DHCP

  B. LDAP

  C. DNS

  D. RADIUS

  Correct Answer: A

  Reference https://www.cisco.com/c/en/us/support/docs/wireless-mobility/wireless-lan-wlan/97066-dhcp-option-4300.html

• Question 42:

  Which one of the following 802.11 PHYs is more likely to be used in an industrial deployment but not likely to be used in standard office deployments?

  A. SIG

  B. VHT

  C. OFDM

  D. HT

  Correct Answer: B

• Question 43:

  You have received a report of poor wireless connections on the third floor of a building under your administration. Three individuals have reported the problem. Apparently, the connections are reposting a strong signal, but the users cannot access the Internet. With the problem identified, what is the next logical step in the troubleshooting process?

  A. Perform corrective actions

  B. Discover the scale of the problem

  C. Create a plan of action or escalate the problem

  D. Verify the solution

  Correct Answer: A

• Question 44:

  What 802.11 PHY uses available space in very low frequency ranges that is not in use at the time by broadcast video signals?

  A. DMG

  B. SIG

  C. DSSS

  D. TVNT

  Correct Answer: C

• Question 45:

  You are attempting to locate the cause of a performance problem in two WLAN cells in a mostly overlapping coverage area. You note that one AP is on channel 1 and the other is on channel 2. When you document your findings, what term do you use to describe the problem in this configuration?

  A. Bluetooth interference

  B. Non-Wi-Fi interference

  C. CCI

  D. ACI

  Correct Answer: CD

• Question 46:

  What statement about 802.11 WLAN performance is true?

  A. In modem networks, both centralized and distributed data forwarding work well for most standard office deployments

  B. In most WLANs, no special skill or tuning is required to get peak performance

  C. WLANs perform better as more wireless clients connect with each AP

  D. To get the best performance out of an AP, you should disable data rates of 72 Mbps and lower

  Correct Answer: D

• Question 47:

  An 802.11-based network uses an AP and has several connecting clients. The clients include iPhones, iPads, laptops and one desktop. What WLAN use case is represented?

  A. WPAN

  B. Ad-hoc

  C. BSS

  D. IBSS

  Correct Answer: C

• Question 48:

  What statement about 802.11 WLAN bridges is true?

  A. WLAN bridges only work in the 2.4 GHz frequency band and they support only SISO communications

  B. WLAN bridges must use a channel with acceptable SNR at both transceivers to maintain the desired data rate bi-directionally

  C. WLAN bridges may support MIMO communications, but only if used in the 5 GHz frequency band

  D. WLAN bridges must be implemented such that no interference occurs on the channel anywhere between the two endpoints used to establish the bridge

  Correct Answer: C

• Question 49:

  You are troubleshooting a client issue on a Windows laptop. The laptop can see and connect to 2.4 GHz APs, but is does not even see 5 GHz APs. While evaluating the issue, you determine that this problem is happening for all of the laptops of this model in the organization. Several other tablets connect on channel 48 and channel 52 in the same work areas. What is the likely problem?

  A. The clients are configured to use WPA and 5 GHz channels only support WPA2.

  B. The antennas in the laptop have insufficient gain to detect the 5 GHz signals.

  C. The access points are configured to disallow 5 GHz.

  D. The client drivers are faulty and should be upgraded.

  Correct Answer: B

• Question 50:

  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 than 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 non-Wi-Fi sources

  B. Faulty drivers

  C. DoS attack

  D. Interference from other WLANs

  Correct Answer: D