[Nov-2023] Latest CWNP CWNA-108 exam dumps and online Test Engine
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CWNP CWNA-108 certification exam is aimed at professionals who wish to establish their expertise in the field of wireless network administration. CWNA-108 exam is designed to test the candidate's understanding of wireless networking concepts, protocols, and technologies. The CWNP Certified Wireless Network Administrator (CWNA) certification is a vendor-neutral certification that is recognized globally and is highly valued by employers.
NEW QUESTION # 61
What is a common feature of an 802.11 WLAN client utility? (Choose 2)
- A. VLAN configuration
- B. Spectrum analyzer utility
- C. Real-time retry monitor
- D. AP Signal strength meter
- E. Link statistics display
Answer: D,E
NEW QUESTION # 62
You are implementing a VHT-capable AP. Which one of the following channels is available in the 802.11-
2016 standard that was not available before the ratification of 802.11 ac?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: B
NEW QUESTION # 63
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 first introduced in 802.11a and is used by the ERP, HT and VHT PHYs as well.
- C. OFDM implements BPSK modulation to allow for data rates up to 7 Gbps.
- D. OFDM was used by Frequency Hopping Spread Spectrum (FHSS) PHY devices.
Answer: B
Explanation:
https://en.wikipedia.org/wiki/IEEE_802.11
NEW QUESTION # 64
Which IEEE 802.11 physical layer (PHY) specification includes support for and compatibility with both ERP and HR/DSSS?
- A. OFDM (802.11a)
- B. VHT (802.11ac)
- C. HT (802.11n)
- D. DSSS (802.11-Prime)
Answer: C
Explanation:
Explanation
The HT (802.11n) physical layer (PHY) specification includes support for and compatibility with both ERP and HR/DSSS. ERP stands for Extended Rate PHY, which is an extension of the original DSSS (Direct Sequence Spread Spectrum) PHY that supports data rates up to 54 Mbps in the 2.4 GHz band. HR/DSSS stands for High Rate/Direct Sequence Spread Spectrum, which is another extension of DSSS that supports data rates up to 11 Mbps in the 2.4 GHz band. HT stands for High Throughput, which is a new PHY that supports data rates up to 600 Mbps in both the 2.4 GHz and 5 GHz bands. HT uses OFDM (Orthogonal Frequency Division Multiplexing) as its modulation scheme, but it also supports legacy DSSS and ERP devices by using a dual preamble and header structure that allows backward compatibility. References: , Chapter 3, page 103; , Section 3.1
NEW QUESTION # 65
You are implementing a VHT-capable AP. Which one of the following channels is available in the
802.11-2016 standard, which was not available before the ratification of 802.11ac?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: B
NEW QUESTION # 66
When a client moves to a new BSS within an ESS, what step is a part of the 802.11 reassociation process?
- A. The client station transmits a Reassociation Request frame to its currentaccess point.
- B. The current access point informs the IP gateway of the reassociation.
- C. The new access point transmits a Reassociation Response to the client station with a status value.
- D. The current access point triggers the client's reassociation service.
Answer: C
NEW QUESTION # 67
What best describes WPA2 in relation to 802.11 wireless networks?
- A. WPA2 is a certification created by the Wi-Fi Alliance that validates devices correctly implement CCMP/ AES.
- B. WPA2 is specified in the 802.11 standard as implementing CCMP/AES.
- C. WPA2 is the second version of WPA and it enhances security through the use of TKIP instead of WEP.
- D. WPA2 is the standard that defines security for WLANs.
Answer: D
NEW QUESTION # 68
An AP is advertised as a tri-band, 4x4:4, Wi-Fi 6, 802. 11ax AP. Based on this information and assuming it is correctly advertised, what can be determined as certainly true about this AP?
- A. It has 4 radio chains
- B. It supports four channels in 2.4 GHz and 4 channels in 5 GHz
- C. It uses a modified OpenWRT firmware
- D. It supports UL-MU-MIMO
Answer: A
Explanation:
Explanation
Based on the information given, what can be determined as certainly true about this AP is that it has 4 radio chains. A radio chain is a hardware component that consists of an antenna, a radio frequency (RF) amplifier, and a transceiver. The number of radio chains indicates how many spatial streams an AP can transmit or receive simultaneously using Multiple Input Multiple Output (MIMO) technology. The notation x:y:z in an AP specification denotes the number of radio chains (x), the number of spatial streams (y), and the number of spatial streams per band (z). Therefore, a tri-band, 4x4:4, Wi-Fi 6, 802.11ax AP has four radio chains in each of its three bands (2.4 GHz, low 5 GHz, and high 5 GHz). It also supports four spatial streams in total and four spatial streams per band. It cannot be determined as certainly true that it supports four channels in each band, UL-MU-MIMO, or uses a modified OpenWRT firmware based on the information given. References: [CWNP Certified Wireless Network Administrator Official Study Guide: Exam CWNA-107], page 223; [CWNA:
Certified Wireless Network Administrator Official Study Guide: Exam CWNA-106], page 213.
NEW QUESTION # 69
When a STA has authenticated to an AP (AP-1), but still maintains a connection with another AP (AP-2), what is the state of the STA on AP-1?
- A. Authenticated and Unassociated
- B. Transitional
- C. Unauthenticated and Unassociated
- D. Authenticated and Associated
Answer: A
Explanation:
Explanation
Authenticated and Unassociated. According to one of the web search results1, a STA can be authenticated to multiple APs, but it can only be associated to one AP at a time. Association is the process of establishing a logical link between the STA and the AP, which allows the STA to send and receive data frames through the AP2. Therefore, when a STA has authenticated to an AP-1, but still maintains a connection with another AP-2, it means that the STA is authenticated to both APs, but only associated to AP-2. The state of the STA on AP-1 is authenticated and unassociated, which means that the STA can switch to AP-1 without repeating the authentication process, but it cannot send or receive data frames through AP-1 until it becomes associated.
NEW QUESTION # 70
What cipher suite is specified by the 802.11-2016 standard and is not deprecated?
- A. Extensible Authentication Protocol
- B. Wired Equivalent Privacy
- C. Counter Mode with CBC-MAC Protocol
- D. Temporal Key Integrity Protocol
Answer: C
NEW QUESTION # 71
Which one of the following frequency ranges is not specified for use by IEEE 802.11 radios as of
802.11-2012?
- A. 5.725-5.874 GHz
- B. 2.4000-2.4835 MHz
- C. 600-630 MHz
- D. 5.15-5.25 GHz
Answer: C
NEW QUESTION # 72
Which data rate is supported by 802.11g radios that is not supported by 802.11a radios?
- A. 12 Mbps
- B. 65 Mbps
- C. 9 Mbps
- D. 11 Mbps
- E. 54 Mbps
- F. 130 Mbps
Answer: D
NEW QUESTION # 73
A client STA must choose the best AP for connectivity. As part of the evaluation, it must verify compatible data rates. What can the client STA use to verify that an AP supports the same data rates that it supports?
- A. Data frames sent between the AP and current client STAs
- B. Beacon frames transmitted by the AP
- C. Probe request frames transmitted by other client STAs
- D. Authentication frames transmitted by the other client STAs
Answer: C
Explanation:
https://supportforums.cisco.com/t5/wireless-mobility-documents/802-11-sniffer-capture-analysis- management-frames-and-open-auth/ta-p/3120622
NEW QUESTION # 74
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. SNMP
- C. WPA2
- D. WIPS
Answer: A
NEW QUESTION # 75
What terms accurately complete the following sentence?
The IEEE 802.11-2012 standard specifies mandatory support of the ___________ cipher suite for Robust Security Network Associations, and optional use of the ___________ cipher suite, which is designed for use with pre-RSNA hardware.
- A. RC5, RC4
- B. TLS, SSL
- C. 802.1X/EAP, WEP
- D. CCMP, TKIP
Answer: D
NEW QUESTION # 76
What statement about 802.11 WLAN bridges is true?
- A. WLAN bridges must be implemented such that no interference occurs on the channel anywhere between the two endpoints used to establish the bridge
- B. WLAN bridges only work in the 2.4 GHz frequency band and they support only SISO communications
- C. WLAN bridges must use a channel with acceptable SNR at both transceivers to maintain the desired data rate bi-directionally
- D. WLAN bridges may support MIMO communication, but only if used in the GHz frequency band
Answer: D
Explanation:
https://www.apm.com.tw/mimo-300mbps-outdoor-bridge-2-4ghz-ape-2405mm8.html WiGig Is 802.11ad and 802.11ay WiGig transmits data wirelessly on the 60 GHz frequency published in 2012, uses the 802.11ad standard offer 5Gbps at up to 10 meters release in 2019, 802.11ay is scheduled for release in
2019 offering 10Gbps at up to 100 meters
Wifi 6
802.11ax,
https://www.cnet.com/home/internet/wi-fi-6-and-what-it-means-for-you-wifi-routers/ WPA3 WPA3 standard also replaces the pre-shared key (PSK) exchange with Simultaneous Authentication of Equals (SAE) WPA3 The new standard uses an equivalent 192-bit cryptographic strength in WPA3-Enterprise mode Protection of management frames as specified in the IEEE 802.11w amendment is also enforced by the WPA3 specifications.
NEW QUESTION # 77
When implementing PoE, what role is played by a switch?
- A. PD
- B. PSE
- C. Power splitter
- D. Midspan injector
Answer: B
NEW QUESTION # 78
ABC Company is planning to install a new 802.11ac WLAN, but wants to upgrade its wired infrastructure first to provide the best user experience possible. ABC Company has hired you to perform the RF site survey. During the interview with the network manager, you are told that the new Ethernet edge switches will support VoIP phones and 802.11 access points, both using
802.3 PoE.
After hearing this information, what immediate concerns do you note?
- A. The edge Ethernet switches should support Ether-channel to get the best results out of the network.
- B. The power budget in the edge switches must be carefully planned and monitored based on the number of supported PoE devices.
- C. If the switches are in optimal locations for VoIP phones, they are likely to be suboptimal locations for 802.11 APs
- D. VoIP phones and 802.11 access points should not be powered by the same edge switch due to distortion.
Answer: B
NEW QUESTION # 79
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. SNMP
- C. WPA2
- D. WIPS
Answer: A
Explanation:
Explanation
The WLAN feature that would allow the network administrator to control the network resources that can be accessed by each employee based on their department is Role-Based Access Control (RBAC). RBAC is a method of assigning different permissions and policies to users or groups based on their roles in the organization. RBAC can be implemented by using VLANs, ACLs, or firewalls to restrict access to certain network segments or resources. RBAC can also be integrated with 802.1X/EAP authentication to dynamically assign roles and VLANs to users based on their credentials. References: [CWNP Certified Wireless Network Administrator Official Study Guide: Exam CWNA-107], page 403; [Role-Based Access Control (RBAC) in Wireless Networks], page 1.
NEW QUESTION # 80
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. Ad-hoc
- B. WPAN
- C. IBSS
- D. BSS
Answer: D
Explanation:
Explanation/Reference:
NEW QUESTION # 81
What ID is typically mapped to an AP's MAC address if a single BSS is implemented?
- A. Device ID
- B. BSSID
- C. VLAN ID
- D. SSID
Answer: B
NEW QUESTION # 82
In addition to coverage analysis results, what should be included in a post-deployment site survey report to ensure WLAN users experience acceptable performance?
- A. Layer 4 protocol availability analysis results
- B. Application Layer protocol availability analysis results
- C. WAN interface analysts results
- D. Capacity analysis results
Answer: D
NEW QUESTION # 83
The IEEE 802.11-2012 standard requires VHT capable devices to be backward compatible with devices using which other 802.11 physical layer specifications (PHYs)?
- A. OFDM
- B. ERP-PBCC
- C. DSSS-OFDM
- D. HR/DSSS
Answer: A
Explanation:
Explanation
OFDM (Orthogonal Frequency Division Multiplexing) is the physical layer specification (PHY) that VHT capable devices must be backward compatible with according to the IEEE 802.11-2012 standard. VHT (Very High Throughput) is a PHY and MAC enhancement that is defined in the IEEE 802.11ac amendment and is also known as Wi-Fi 5. VHT operates only in the 5 GHz band and uses features such as wider channel bandwidths (up to 160 MHz), higher modulation schemes (up to 256-QAM), more spatial streams (up to eight), multi-user MIMO (MU-MIMO), beamforming, and VHT PHY and MAC enhancements. VHT can achieve data rates up to 6.9 Gbps.
According to the IEEE 802.11-2012 standard, VHT capable devices must be backward compatible with devices using OFDM PHY, which is defined in the IEEE 802.11a amendment and is also used by IEEE
802.11g, IEEE 802.11n, and IEEE 802.11h amendments. OFDM operates in both the 2.4 GHz and 5 GHz bands and uses features such as subcarriers, symbols, guard intervals, and OFDM PHY and MAC enhancements. OFDM can achieve data rates up to 54 Mbps.
Backward compatibility means that VHT capable devices can interoperate with OFDM devices on the same network by using common features and parameters that are supported by both PHYs. For example, VHT capable devices can use a channel bandwidth of 20 MHz, a modulation scheme of BPSK, QPSK, or 16-QAM, one spatial stream, no beamforming, and OFDM PHY and MAC headers when communicating with OFDM devices. Backward compatibility also means that VHT capable devices can fall back to OFDM mode when the signal quality or SNR is too low for VHT mode. References: 1, Chapter 3, page 123; 2, Section 3.2
NEW QUESTION # 84
What statement about 802.3, Clause 33 Power over Ethernet is true?
- A. When using CAT5 cabling, you increase the maximum draw available to the PD over that available with CAT6.
- B. Only midspan PSEs are supported.
- C. The lowest voltage drop is achieved when using CAT6 cable instead of Cat5 or CAT5e.
- D. Only endpoint PSEs are supported.
Answer: C
Explanation:
https://www.cablinginstall.com/articles/2012/08/cat-6a-vs-cat-5e-poe.html
NEW QUESTION # 85
You have been tasked with creating a wireless link between two buildings on a single campus. The link must support at least 150 Mbps data rates. What kind of WLAN technology role should you deploy?
- A. WPAN
- B. Wireless bridging
- C. IBSS
- D. Access BSS
Answer: B
Explanation:
Explanation
https://www.wlanmall.com/what-is-a-wireless-bridge/
Wireless bridging is a WLAN technology role that allows two or more networks to be connected wirelessly over a distance. A wireless bridge consists of two or more APs that are configured to operate in bridge mode and use directional antennas to establish a point-to-point or point-to-multipoint link. Wireless bridging can support high data rates and is suitable for scenarios where running cables is impractical or expensive. To create a wireless link between two buildings on a single campus that supports at least 150 Mbps data rates, wireless bridging is an appropriate solution678. References: CWNA-109 Study Guide, Chapter 6: Wireless LAN Devices and Topologies, page 271; CWNA-108 Study Guide, Chapter 6: Wireless LAN Devices and Topologies, page 265; Wi-Fi Wireless Bridging Explained.
NEW QUESTION # 86
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