[2022] CWNA-108 by CWNA Certification Actual Free Exam Practice Test
Free CWNA Certification CWNA-108 Exam Question
Exam Syllabus
The CWNA-108 exam covers seven knowledge domains. Each of these areas has detailed topics and subtopics that must be understood to improve your performance in the certification test. The highlights of these sections are as follows:
RF Technologies: 15%
This is the first topic to deal with that will evaluate the following skills that you need to possess:
- Establish RF signal attributes to antennas: This means that you should know about passive gain, MINO, radio chains, polarization, beamwidths, transmit beamforming, passive gain, spatial multiplexing, and maximal ratio combining;
- Describe and use the functionality of the RF antennas, accessories, and antenna systems: The area includes highly directional antennas, Omni-directional and semi-directional antennas, RF connectors & cables, Antenna orientation, grounding wires/rods, and Lightning arrestors.
- Apply the fundamental concepts of the Radio Frequency measurement and mathematics: This subtopic focuses on Watt & milliwatt, RSSI, SNR, Decibel, Noise floor, dBm & dBi, as well as EIRP;
- Identify and describe the basic attributes of Radio Frequency (RF) and RF behaviors: The concepts covered in this area include multipath & RF interference, attenuation, amplification, return loss, gain & loss, free space path loss, and absorption, among others;
Exam Prerequisites
This CWNA-108 test does not have any prior demands, but there is a recommendation concerning the earning of the CWS (Certified Wireless Specialist) or the CWT (Certified Wireless Technician) certificates as they offer the appropriate wireless technology foundational skills for all aspiring applicants.
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NEW QUESTION 23
You are onsite with a client to perform a post-deployment site survey. When verifying a multiple channel VoWiFi deployment using a VoWiFi handset, which aspect is most important?
- A. Performing protocol analysis with a single wireless adapter that is scanning all channels in use
- B. Testing a constant conversation orhandset tone while roaming from area to area, or performing an active survey
- C. Configuring DSCP-to-802.11e QoS maps on the handset for each access category.
- D. Verifying the VHT functionality to handle the call volume incurred by a single VoIP phone call.
Answer: B
NEW QUESTION 24
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. Improves service quality for real-time applications at greater distances
- B. Stronger security with more robust encryption modes.
- C. Increases in receive sensitivity enhance RTLS location accuracy
- D. Introduces "fast transition" roaming protocols for VoWiFi phones
- E. Better link reliability between 802.11a/b/g client devices and 802.11ac APs
Answer: A,E
NEW QUESTION 25
You are performing a post-implementation validation survey. What basic tool can be used to easily locate areas of high co-channel interference?
- A. Wi-Fi scanner
- B. Throughput tester
- C. Laptop-based spectrum analyzer
- D. Access point spectrum analyzer
Answer: A
NEW QUESTION 26
What statement describes the authorization component of a AAA implementation?
- A. Granting access to specific network services or resources according to a user profile.
- B. Validating client device credentials against a database.
- C. Verifying that a user is who he says he is.
- D. Implementing a WIPS as a full-time monitoring solution to enforce policies.
Answer: A
NEW QUESTION 27
To ease user complexity, your company has implemented a single SSID for all employees. However, the network administrator needs a way to control the network resources that can be accessed by each employee based in their department.
What WLAN feature would allow the network administrator to accomplish this task?
- A. RBAC
- B. WIPS
- C. WPA2
- D. SNMP
Answer: A
NEW QUESTION 28
When a client station sends a broadcast probe request frame with a wildcard SSID, how do APs respond?
- A. For each probe request frame, only one AP may reply with a probe response.
- B. Each AP checks with the DHCP server to see if it can respond and then acts accordingly.
- C. Each AP responds in turn after preparing a probe response and winning contention.
- D. After waiting a SIFS, all APs reply at the same time with a probe response.
Answer: C
NEW QUESTION 29
You administer a small WLAN with nine access point. As a small business, you do not rum a RADIUS server and use WPA2-Personal for security. Recently, you changed the passphrase for WPA2-personal in all Aps and clients. Several users are now reporting the inability to connect to the network at time and it is constrained to one area of the building. When using scanner, you see that the AP covering that area is online
- A. The AP that covers the problem area is improperly configured
- B. The AP that covers the problem area has failed
- C. The clients are improperly configured
- D. The AP that covers the problem area requires a firmware update
Answer: D
NEW QUESTION 30
What factor will have the most significant impact on the amount of wireless throughput available to each station within a BSS?
- A. The presence of co-located (10m away) access points on non-overlapping channels
- B. The number of client stations associated to the BSS
- C. The Layer 3 protocol used by each station to transmit data over the wireless link
- D. The power management settings in the access point beacons
Answer: B
NEW QUESTION 31
What statement is true concerning the use of Orthogonal Frequency Division Multiplexing (OFDM) modulation method in IEEE 802.11 WLANs?
- A. OFDM modulation is used only in 5 GHz 802.11 transmissions.
- B. OFDM was used by Frequency Hopping Spread Spectrum (FHSS) PHY devices.
- C. OFDM implements BPSK modulation to allow for data rates up to 7 Gbps.
- D. OFDM was first introduced in 802.11a and is used by the ERP, HT and VHT PHYs as well.
Answer: D
Explanation:
https://en.wikipedia.org/wiki/IEEE_802.11
NEW QUESTION 32
What statement accurately describes the RF cables and connectors that are used in an
802.11 WLAN system?
- A. Two RF connectors of the same type (e.g. SMA), manufactured by different companies, may vary in specifications.
- B. Large diameter RF cables cause greater loss than small diameter cables.
- C. Some RF connectorsdo not cause insertion loss.
- D. 75 and 125 ohms are the typical impedances of 802.11 WLAN connectors.
Answer: A
NEW 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
Answer: C
NEW QUESTION 34
Prior to association, what parameter can 802.11 client devices measure and use to select the optimal access point for association?
- A. Average round trip time to reach the IP router
- B. Retry rate of probe request and response frames
- C. Signal strength of access point beacons received
- D. Average round trip time to reach the Internet DNS server
- E. Proximity to potential access points
Answer: C
NEW QUESTION 35
As XYZ Company's wireless specialist, you have been asked to troubleshoot some unexpected frame patterns in a wireless protocol capture. Your peers explain that the network's beacon frames are inconsistent. That is, the BSSID is the same for all beacons, but the source address varies between three different addresses.
What network configuration would cause this beacon frame behavior?
- A. The beacons are from an IBSS instead of a BSS
- B. A single AP supports multiple BSSs with different SSIDs
- C. A virtual cell single channel network has been implemented
- D. Three APs still share the same default configuration.
Answer: A
NEW QUESTION 36
You are being interviewed by ABC Company for employment as a wireless site survey expert.
The interviewing manager asks you what items should be included in a site survey report generated as part of a manual site survey process.
What answer would be accurate?
- A. Itemized list of equipment, licenses, and support contracts required for the facility
- B. Documentation proving proper entry of wall material types into the site survey software
- C. Documentation noting how each WLAN user group will authenticate to the network
- D. RF heat map illustrating coverage and signal quality for each frequency band
Answer: D
NEW QUESTION 37
You are troubleshooting a client issue on a Windows laptop. The laptop can see and connect to
2.4 GHz APs, but it 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 access points are configured to disallow 5 GHz
- B. The clients are configured to use WPA and 5 GHz channels only support WPA2
- C. The client drivers are faulty and should be upgraded
- D. The antennas in the laptops have insufficient gain to detect the 5 GHz signals
Answer: D
NEW QUESTION 38
What feature was introduced in the 802.11h amendment in order to uphold regulatory requirements for 5 GHz operations.
- A. Transmit Power Control (TPC)
- B. 256-QAM
- C. Radio Resource Management (RRM)
- D. Distributed Coordination Function (DCF)
Answer: A
NEW QUESTION 39
In which plane of the three networking planes is an access point configured by a WLAN controlled?
- A. Data
- B. Security
- C. Control
- D. Management
Answer: D
NEW QUESTION 40
Which of the following frequency ranges are specified for use by IEEE 802.11 radios? (Choose all that apply.)
- A. 5.15 - 5.25 GHz
- B. 5.725 - 5.875 GHz
- C. 2.4000 - 2.4835 GHz
- D. 5.470 - 5.725 GHz
- E. 902 - 928 MHz
Answer: A,B,C,D
NEW QUESTION 41
What statement about 802.3. Clause 33 Power over Ethernet is true?
- A. The lowest voltage drop is achieved when using CAT6 cable instead of CAT5 or CAT5e.
- B. When using CAT5 cabling, you increase the maximum draw available to the PD over that available with CAT6.
- C. Only endpoint PSEs are supported.
- D. Only midspan PSEs are supported.
Answer: B
NEW QUESTION 42
A WLAN transmitter that emits a 50 mW signal is connected to a cable with 3 dB loss.
If the cable is connected to an antenna with 9 dBi gain, what is the EIRP at the antenna element?
- A. 10 dBm
- B. 23 dBm
- C. 13 dBm
- D. 26 dBm
Answer: B
NEW QUESTION 43
What cipher suite is specified by the 802.11-2016 standard and is not deprecated?
- A. Temporal Key Integrity Protocol
- B. Counter Mode with CBC-MAC Protocol
- C. Extensible Authentication Protocol
- D. Wired Equivalent Privacy
Answer: B
NEW QUESTION 44
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