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Understanding functional and technical aspects of CWNA® - Certified Wireless Network Administrator Business Principles and Practices
The following will be discussed in CWNP CWNA-108 exam dumps:
- DSSS - 802.11
- QAM (16, 64, 256,1024)
- Wireless LAN (WLAN) - BSS and ESS
- Wireless bridging
- BPSK
- Describe the OSI model layers affected by the 802.11-2016 standard and amendments
- Wi-Fi 4 - HT - 802.11n
- OFDM - 802.11a
- CWNP
- Identify and apply 802.11 WLAN functional concepts
- Regulatory power constraints
- Bandwidth
- QPSK
- Frequency bands used by the 802.11 PHYs
- Wi-Fi Alliance
- OFDMA and Resource Units
- OFDM
- IETF
- Identify and comply with regulatory domain requirements and constraints (specifically in 2.4 GHz and 5 GHz)
- IEEE
- ERP - 802.11g
- Wi-Fi 6 - HE - 802.11ax
- Understand spread spectrum technologies, Modulation and Coding Schemes (MCS)
- Wireless Ad-Hoc (IBSS)
- Wi-Fi 5 - VHT - 802.11ac
- Guard Interval
NEW QUESTION # 28
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 yoy findings, what term do you use to describe the problem in this configuration?
- A. CCI
- B. Non-Wi-Fi interference
- C. ACI
- D. Bluetooth interference
Answer: C
Explanation:
Adjacent channel interference is more serious and occurs when 2 or more AP's are on overlapping channels, for example channel 1 + 4 on the 2.4Ghz band. ACI creates overlap in the frequency space causing corrupted data and layer 2 re-transmissions.
NEW QUESTION # 29
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. Unauthenticated and Unassociated
- C. Authenticated and Associated
- D. Transitional
Answer: D
NEW QUESTION # 30
Which one of the following channels can be used for VHT transmissions?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: B
NEW QUESTION # 31
What can an impedance mismatch in the RF cables and connectors cause?
- A. Increased range of the RF signal
- B. Increased amplitude of the RF signal
- C. Excessive VSWR
- D. Fewer MCS values in the MCS table
Answer: C
NEW QUESTION # 32
A dual-band 802-1 lac AP must be powered by PoE. As a class 4 device, what power level should be received at the AP?
- A. 30 W
- B. 12.95 W
- C. 25. 5W
- D. 15.4 W
Answer: D
NEW QUESTION # 33
What factors will have the most significant impact on the amount of wireless bandwidth available to each station within a BSS?
- A. The layer 3 protocol used by each station to transmit data over the wireless link
- B. The number of client stations associated to the BSS
- C. The presence of co-located (10m away) access points on non-overlapping channels
- D. The power management settings in the access point's beacons
Answer: B
NEW QUESTION # 34
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 5GHz 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: A
Explanation:
Explanation/Reference:
NEW QUESTION # 35
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 on their department.
What WLAN feature would allow the network administrator to accomplish this task?
- A. RBAC
- B. SNMP
- C. WPA2
- D. VRRP
- E. IPSec
- F. WIPS
Answer: A
NEW QUESTION # 36
Which directional antenna types are commonly used by indoor Wi-Fi devices in a MIMO multiple spatial stream implementation?
- A. Patch and panel
- B. Grid and sector
- C. Dipole and yagi
- D. Dish and grid
Answer: A
NEW QUESTION # 37
Users and Network support personnel at a mid-sized equipment manufacturer have been discussing the potential uses and benefits of implementing an indoor WLAN. The network administrator and network manager have requested a meeting of senior management personnel to discuss a WLAN implementation before performing a site survey or taking any implementation steps. The first topic of discussion in the meeting is the corporate policy concerning implementation and use of WLAN technology.
What specific topics are appropriate in this policy meeting? (Choose 2)
- A. Business justification
- B. Defining RF channels for use
- C. Antenna types
- D. User productivity impact
- E. Use of the latest 802.11ac equipment
Answer: A,D
NEW QUESTION # 38
You are using a tool that allows you to see signal strength for all Aps in the area with a visual representation. It shows you SSIDs available and the security settings for each SSID. It allows you to filter by frequency band to see only 2.4 GHz networks or only 5 GHz networks. No additional features are available.
What kind of application is described?
- A. Spectrum analyzer
- B. Protocol analyzer
- C. WLAN scanner tool
- D. Site survey utility
Answer: C
NEW QUESTION # 39
You are configuring an access point to use channel 128. What important fact should be considered about this channels?
- A. It is a channel that is unsupported by most access points
- B. It is a 22 MHz channel so it will overlap with the channels above and below it
- C. It is a 2.4 GHz frequency band 40 MHz channel, so it should not be used
- D. It is a channel that likely requires DFS when used
Answer: D
NEW QUESTION # 40
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. Access BSS
- B. WPAN
- C. Wireless bridging
- D. IBSS
Answer: D
NEW QUESTION # 41
What common feature of MDM solutions can be used to protect enterprise data on mobile devices?
- A. Containerization
- B. Self-registration
- C. Onboarding
- D. Over-the-air registration
Answer: C
NEW QUESTION # 42
What term describes the effect of increasing the intensity of an RF wave with an antenna by focusing the energy in a specific direction?
- A. RF Flooding
- B. Active Amplification
- C. Passive Gain
- D. Beam Compression
- E. Distributed Radiation
Answer: C
NEW QUESTION # 43
A non-802.11 device is suspected of causing interference on the WLAN. You are not certain of the location or type of device. What is the best solution for locating this non-802.11 device?
- A. Laptop-based spectrum analyzer with an omni-directional antenna
- B. Access point spectrum analyzer
- C. Laptop-based spectrum analyzer with an omni-directional antenna
- D. Laptop-based spectrum analyzer with a directional antenna
Answer: D
NEW QUESTION # 44
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