Updated Nov-2021 Official licence for CWNA-108 Certified by CWNA-108 Dumps PDF
Grab latest Amazon CWNA-108 Dumps as PDF Updated on 2021
Domain Details for CWNP CWNA-108
When it comes to particulars of this test, they are as follows:
- Standards & Regulations for WLAN
This tested area includes the roles played by WLAN as well as networking industry companies, the application of differing PHY (Physical Layer) solutions aimed at IEEE 802.11-2016 standard based on the amendment that includes supported widths, spatial streams, and data rate for a channel, and technologies and Modulation & Coding Schemes (MCS) related to spread spectrum. Also, such a domain deliberates OSI layers impacted by 802.11-2016 amendment and standard, the application of WLAN operation concepts for 802.11, and basic scenarios targeting 802.11 wireless networks.
- WLAN Protocols & Devices
This sector touches on the elements as well as functions that constitute an 802.11 wireless service set, terminology that relates to 802.11 MAC & PHY, MAC frame design, and the purpose of the three major frame types of 802.11. Also, it scrutinizes the process followed when locating and connecting to WLANs, access techniques for 802.11 channel, 802.11 MAC functioning, and the features, selection, and installation of WLAN gadgets, control, and the management of systems.
- RF Validation
Under such a topic, candidates will be looking at verifying and documenting that design demands are met, including roaming, coverage, throughput, and connectivity alongside a validation survey for post-implementation. Also, to consider is the location and identification of sources associated with RF interference. Next is dealing with the performance of app testing to enable the validation of WLAN performance, which captures the network in addition to service availability, VoIP testing, throughput testing, and others. The last area to get into concerns the basic features associated with validation tools. Particularly, this explains using throughput testers in validating tasks, using validation software for wireless scanners, and using protocol analyzers to validate tasks, among other issues.
- WLAN Network Infrastructure & Design Concepts
This section is about the implementation of Power over Ethernet (PoE), the advantages, constraints, and differences of various infrastructures for WLAN, design considerations related to common deployments within wireless that include coverage needs, roaming considerations, capacity, security, throughput, and awareness on common proprietary elements relating to wireless networks. Another field is about considering and configuring the needed services for networks that are supporting wireless ones.
- Security for WLAN Network
Included in the topic is the matter of the identification of weak options of security that shouldn't be utilized in WLANs for the enterprise. Also, included here is the identification and configuration of efficient security mechanisms targeted at enterprise WLANs, basic concepts relating to WPA3 & Opportunistic Wireless Encryption (OWE) as well as enhancements in comparison with WPA2, and common options of security as well as tools used within wireless based networks.
- RF Technologies
In particular, RF or Radio Frequency technologies concern the defining and explaining of basic features of RF in addition to RF behavior. Under this category, one will be learning about wavelength, frequency, phase, amplitude, sine waves, RF propagation & coverage, reflection, refraction, scattering, and diffraction, multipath as well as RF interference, gain & loss, amplification, absorption, and more. Also, to be learned is the application of fundamental concepts relating to RF measurements and mathematics. This details watt & milliwatt, decibel (dB), noise floor, SNR, RSSI, EIRP, and others. The next part is focused on identifying RF signal features according to the way they relate to antennas. The areas it touches on include beamwidths, RF in addition to a physical line of sight & Fresnel zone clearance, polarization, passive gain, radio chains, spatial multiplexing (SM), and MIMO, among others. The other domain covered is centered on RF antennas, antenna-related systems, as well as accessories functionality. This covers antennas that are omni-directional, highly directional, and semi-directional. It also covers antenna orientation, lightning arrestors as well as grounding rods or wires, RF cables & connectors, and more.
- WLAN Troubleshooting
This part covers common tools for troubleshooting that are often used within WLANs. Issues addressed by such a topic revolve around the usage of protocol analyzers to troubleshoot tasks, the usage of spectrum analyzers in identifying interference sources, and more. The last area looks at the identification and troubleshooting of wireless problems.
NEW QUESTION 81
An RF signal sometimes bends as it passes through some material other than free space. What is the term that describes this behavior?
- A. Scattering
- B. Warping
- C. Refraction
- D. Reflection
Answer: C
NEW QUESTION 82
What security method is commonly used for VoIP handsets when the infrastructure does not support OKC or FT roaming?
- A. WPA2-Enterprise with PEAP
- B. WPA2 -Personal
- C. WPA2-Enterprise with EAP-TTLS
- D. WPA2-Enterprise with EAP-TLS
Answer: D
NEW QUESTION 83
When compared with legacy Power Save mode, how does VHT TXOP power save improve battery life for devices on a WLAN?
- A. VHT TXOP power save allows stations to enter sleep mode and legacy Power Save does not.
- B. VHT TXOP power save uses the partial AID in the preamble to allow clients to identify frames targeted for them.
- C. Legacy Power Save mode was removed in the 802.11ac amendment.
- D. VHT TXOP power save allows the WLAN transceiver to disable more components when in a low power state.
Answer: B
NEW QUESTION 84
You are troubleshooting a client problem with a 2.4 GHz WLAN connection. The client is experiencing surprisingly low data rates during the work day. You analyze the workspace outside of business hours and detect a strong signal with a typical noise floor at the client location. During working hours, the user works with a laptop in the area and uses an external USB hard drive for continuous data access. The user also states that the laptop works as expected on her home network. The user working approximately 8 feet away from this client experiences no problems.
Based on this information, what is the likely cause of the problem?
- A. The laptop has a falling wireless adapter
- B. The external hard drive is USB 3.0 and is causing a significant increase in the noise floor when in use
- C. The AP is overloaded during the work day
- D. The drivers in the laptop are corrupt
Answer: C
NEW QUESTION 85
What phrase defines Equivalent Isotropically Radiated Power (EIRP)?
- A. Power supplied from the transmission line to the antenna input
- B. The power output from the radio after cable losses
- C. Reflected power due to an impedance mismatch in the signal path
- D. The highest RF signal strength that is transmitted from a given antenna
- E. The power output from the radio into the RF cable
Answer: D
NEW QUESTION 86
What item is essential for performing a manual RF site survey for a warehouse facility?
- A. A facility map with an explanation of applications used in each area
- B. Predictive site survey software that supports highly directional antennas
- C. Low-gain omni antennas for APsmounted high on warehouse ceilings
- D. I-Beam mounting kits for hanging temporary access points
Answer: A
NEW QUESTION 87
Two co-located 802.11b/g/n APs can interfere with one another and cause contention and collisions, even when the two APs are operating on non-overlapping channels (e.g. 1 & 6).
What deployment flaw could cause this problem?
- A. The access points are mounted too closely to one another.
- B. A client station is using active scanning to probe for access points on multiple channels.
- C. The access points are not synchronized to the same NTP server.
- D. Reflective objects in the area are causing significant multipath.
Answer: A
NEW QUESTION 88
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. VoIP phones and 802.11 access points should not be powered by the same edge switch due to distortion.
- B. The edge Ethernet switches should support Ether-channel to get the best results out of the network.
- C. The power budget in the edge switches must be carefully planned and monitored based on the number of supported PoE devices.
- D. If the switches are in optimal locations for VoIP phones, they are likely to be suboptimal locations for 802.11 APs
Answer: C
NEW QUESTION 89
ABC Company has just purchased a 6 dBi patch antenna. After performing some tests with the 6 dBi antenna, they have concluded that more antenna gain is needed to cover their outdoor courtyard. When choosing an antenna with higher gain, what other antenna characteristic will also always change?
- A. Fresnel Zone size
- B. Beamwidth
- C. Impedance
- D. Maximum input power
- E. VSWR Ratio
Answer: B
NEW QUESTION 90
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. BSS
- B. IBSS
- C. Ad-hoc
- D. WPAN
Answer: A
Explanation:
Explanation/Reference:
NEW QUESTION 91
When antenna gain is reported in dBI, the gain of the antenna is compared to what theoretical antenna?
- A. Dipole
- B. Yagl
- C. Rubber ducky
- D. Isotropic radiator
Answer: D
Explanation:
https://www.cwnp.com/forums/posts?postNum=292616
NEW QUESTION 92
What fact is true regarding controllers and Aps in a split-MAC architecture?
- A. An IP tunnel is established between the AP and controller for AP management and control functions
- B. Using centralized data forwarding, frames leaving the Aps are never tagged Ethernet frames with VLAN identifiers
- C. With 802.1X/EAP security, the AP acts as the supplicant and the controller acts as the authenticator
- D. Management and data frames must be processed locally by the AP, while control frames are sent to the controller
Answer: A
NEW QUESTION 93
A company has hired you to perform a pre-deployment site survey of their facility. During an interview, the network manager informs you that the new wireless network must use 5 GHz bands and OFDM, and VoWiFi handsets will be used extensively over the wireless network.
What items do you need to include in the RF site survey report? (Choose 2)
- A. Results of OFDM versus ERP performance in each BSA
- B. A heat map demonstrating signal quality in areas where VoWiFi is supported.
- C. Codec types and sampling rates for each VoWiFi phone
- D. Test results from an active survey with a VoWiFi handset
- E. Security parameters and configuration steps for VoWiFi handsets.
Answer: B,D
NEW QUESTION 94
You are troubleshooting an issue reported by several wireless users. The problem is contained to one cell (several users connected to the same AP). You manage the WLAN and no other network devices. After analysis it appears to be a switch problem. What action should be taken?
- A. Escalate the problem to the wireless vendor support staff
- B. Document the results and close the case
- C. Escalate the problem to the network administration team
- D. Create a plan of action and implement it
Answer: C
NEW QUESTION 95
The OSI model is a 7-layer model for understanding the functions of a communication system.
What OSI sublayers are specifically addressed by the IEEE 802.11-2012 standard? (Choose 2)
- A. MAC
- B. Transport
- C. IP
- D. PPDU
- E. Network
- F. PLCP
Answer: A,F
NEW QUESTION 96
You are evaluating access points for use in the 5GHz frequency band.
What PHY supports this band and supports 80 MHz channels?
- A. HT
- B. ERP
- C. VHT
- D. OFDM
Answer: C
NEW QUESTION 97
The center frequency of channel 1 in the 2.4 GHz band is 2.412 GHz (2412 MHz).
What is the center frequency of channel 4?
- A. 2.427 GHz
- B. 2.417 GHz
- C. 2.422 GHz
- D. 2.413 GHz
Answer: A
NEW QUESTION 98
What common feature of MDM solutions can be used to protect enterprise data on mobile devices?
- A. Onboarding
- B. Containerization
- C. Over-the-air registration
- D. Self-registration
Answer: A
NEW QUESTION 99
Which one of the following channels can be used for VHT transmissions?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: D
NEW QUESTION 100
As you prepare for a site survey in a multi-floor corporate office, you have learned about several wireless devices that support connection-oriented, real-time applications. These applications are sensitive to service interruptions and require excellent signal quality, low latency, and low loss.
For that reason, it is important to identify sources of RF interference as well as building characteristics that would cause RF blockage or dead spots.
What systems or environmental characteristics are most likely to cause interference or RF blockage and disrupt service for these applications? (Choose 2)
- A. Microwave ovens
- B. RFID chokepoints
- C. Narrow hallways
- D. Elevator shafts
- E. Workspace dividers
Answer: A,D
NEW QUESTION 101
Return Loss is the decrease of forward energy in a system when some of the power is being reflected back toward the transmitter.
What will cause high return loss in an RF transmission system, including the radio, cables, connectors and antenna?
- A. The use of cables longer than one meter in the RF system
- B. High output power at the transmitter and use of a low-gain antenna
- C. A Voltage Standing Wave Ratio (VSWR) of 1:1
- D. An impedance mismatch between components in the RF system
Answer: D
NEW QUESTION 102
You are deploying a WLAN with the access points configured for 10 mW of output power on the
2.4 GHz radios and 20 mW of output power on the 5 GHz radios. Some semi- directional antennas are also in use. What kind of deployment is described?
- A. SOHO
- B. Standard office
- C. High density
- D. Residential
Answer: C
NEW QUESTION 103
What statement accurately describes the RF cables and connectors that are used in an
802.11 WLAN system?
- A. 75 and 125 ohms are the typical impedances of 802.11 WLAN connectors.
- B. Some RF connectorsdo not cause insertion loss.
- C. Large diameter RF cables cause greater loss than small diameter cables.
- D. Two RF connectors of the same type (e.g. SMA), manufactured by different companies, may vary in specifications.
Answer: D
NEW QUESTION 104
Which one of the following is not a factor considered when calculating the Link Budget for an outdoor point-to- point WLAN bridge link?
- A. Transmit power
- B. MU-MIMO capabilities of the bridges
- C. Receive antenna gain
- D. Operating frequency
Answer: B
NEW QUESTION 105
A dual-band 802.11ac AP must be powered by PoE. As a class 4 device, what power level should be received at the AP?
- A. 12.95 W
- B. 30 W
- C. 15.4 W
- D. 25.5 W
Answer: D
NEW QUESTION 106
......
More about CWNA-108 Exam
The goal of CWNA-108 test is the installation, configuration, troubleshooting, and maintenance of wireless networks deployed in small businesses as well as enterprises. If you are to take such a test, here are vital details to note first:
- Passing mark: 70%;
- Cost: $225.
- Questions: 60;
- Question styles: multiple-choice, multiple-answer;
- Delivery language: English;
- Time: 90 minutes;
Latest CWNA-108 Exam Dumps CWNP Exam from Training: https://www.actual4dump.com/CWNP/CWNA-108-actualtests-dumps.html
Newly Released CWNA-108 Dumps for CWNA Certification Certified: https://drive.google.com/open?id=1OzQBWTDVUaW5ii6i3XatQ_8FBp8O4MDu