Top CWNA-109 Exam Test Pass Certify | High Pass-Rate CWNA-109 Valid Exam Sample: CWNP Wireless Network Administrator (CWNA)

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CWNP CWNA-109 Exam Syllabus Topics:

SectionWeightObjectives
Topic 1: IEEE 802.11 Network Operations15%- Performance Optimization
  • 1. QoS (WMM)
  • 2. Channel management
  • 3. Roaming (802.11r/k/v)
- Troubleshooting
  • 1. Protocol analysis
  • 2. Common connectivity issues
  • 3. Spectrum analysis
Topic 2: IEEE 802.11 Regulations and Standards15%- IEEE 802.11 Standards
  • 1. 802.11be (Wi-Fi 7) overview
  • 2. 802.11-2020 and amendments (a/b/g/n/ac/ax)
  • 3. Channel bonding and widths
- Regulatory Bodies and Domains
  • 1. FCC, ETSI, IC, and others
  • 2. Frequency bands and channels
Topic 3: Radio Frequency (RF) Technologies15%- Antenna Concepts
  • 1. Antenna types and usage
  • 2. Polarization
  • 3. Antenna gain and patterns
- RF Fundamentals
  • 1. Wavelength, frequency, and amplitude
  • 2. Signal strength and loss (attenuation)
  • 3. RF behaviors: absorption, reflection, refraction, diffraction, scattering
- RF Mathematics
  • 1. Link budget calculations
  • 2. Inverse Square Law
  • 3. dB, dBi, dBd, dBm
Topic 4: IEEE 802.11 Protocols and Devices20%- CSMA/CA
  • 1. RTS/CTS
  • 2. DCF and EDCA
- WLAN Architecture
  • 1. Independent Basic Service Set (IBSS)
  • 2. Stations (STA), Access Points (AP)
  • 3. Extended Service Set (ESS)
  • 4. Basic Service Set (BSS)
  • 5. Distribution System (DS)
- 802.11 Frame Types
  • 1. Frame exchange processes
  • 2. Management, Control, and Data frames
Topic 5: IEEE 802.11 Network Security15%- Security Basics
  • 1. Authentication and Association
  • 2. WPA2 and WPA3
  • 3. Legacy security (WEP, WPA)
- Encryption and Authentication
  • 1. 802.1X/EAP
  • 2. OWE and SAE
  • 3. CCMP, GCMP
Topic 6: IEEE 802.11 Network Implementation20%- Power over Ethernet (PoE)
  • 1. 802.3af, 802.3at, 802.3bt
- Site Survey and Design
  • 1. Predictive and Passive site surveys
  • 2. Active site surveys
  • 3. AP placement and density
- Deployment Models
  • 1. Cloud-based and Controller-based
  • 2. Distributed and Centralized architectures
  • 3. Autonomous APs

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CWNP Wireless Network Administrator (CWNA) Sample Questions (Q174-Q179):

NEW QUESTION # 174
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?

Answer: A

Explanation:
The client STA can use Beacon frames transmitted by the AP to verify that an AP supports the same data rates that it supports. Beacon frames are management frames that are periodically broadcasted by the APs to announce their presence, capabilities, and parameters. One of the information elements contained in the Beacon frames is the Supported Rates or Extended Supported Rates, which lists the data rates that the AP can use for communication. The client STA can compare its own data rates with those advertised by the AP to determine if they are compatible. Data frames, authentication frames, and probe request frames do not contain information about data rates.


NEW QUESTION # 175
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?

Answer: B

Explanation:
The term used to describe the problem in this configuration is Co-Channel Interference (CCI)1. CCI occurs when multiple access points are on the same or overlapping channels, causing interference and degradation in network performance1. In this case, one AP is on channel 1 and the other is on channel 2, which are overlapping channels, leading to CCI1.


NEW QUESTION # 176
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?

Answer: A

Explanation:
The client STA can use Beacon frames transmitted by the AP to verify that an AP supports the same data rates that it supports. Beacon frames are management frames that are periodically broadcasted by the APs to announce their presence, capabilities, and parameters. Oneof the information elements contained in the Beacon frames is the Supported Rates or Extended Supported Rates, which lists the data rates that the AP can use for communication. The client STA can compare its own data rates with those advertised by the AP to determine if they are compatible. Data frames, authentication frames, and probe request frames do not contain information about data rates. References: [CWNP Certified Wireless Network Administrator Official Study Guide: ExamCWNA-109], page 133; [CWNA: Certified Wireless Network Administrator Official Study Guide: ExamCWNA-109], page 123.


NEW QUESTION # 177
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?

Answer: C

Explanation:
The center frequency of channel 4 in the 2.4 GHz band is 2.427 GHz (2427 MHz). The center frequency of a channel is the midpoint of its frequency range, where the signal strength is highest and most concentrated.
The center frequency of channel 1 in the 2.4 GHz band is 2.412 GHz (2412 MHz), as given in the question.
The center frequency of each subsequent channel is obtained by adding 5 MHz to the previous channel's center frequency, since the channels are spaced 5 MHz apart from each other in this band. Therefore, to find the center frequency of channel 4, we need to add 15 MHz (5 MHz x 3) to the center frequency of channel 1:
2.412 GHz + 0.015 GHz = 2.427 GHz
Alternatively, we can use a formula to calculate the center frequency of any channel in the 2.4 GHz band:
Center frequency (GHz) = 2.407 + (0.005 x Channel number)
Using this formula for channel 4, we get:
Center frequency (GHz) = 2.407 + (0.005 x 4)
Center frequency (GHz) = 2.407 + 0.02
Center frequency (GHz) = 2.427 References: 1, Chapter 3, page 85; 2, Section 3.2


NEW QUESTION # 178
What security option for 802.11 networks supports SAE and requires protected management frames?

Answer: D

Explanation:
The security option for 802.11 networks that supports SAE and requires protected management frames is WPA3. WPA3 stands for Wi-Fi Protected Access version 3 and is the latest security standard for WLANs. WPA3 supports two modes: WPA3-Personal and WPA3-Enterprise. WPA3- Personal uses Simultaneous Authentication of Equals (SAE) as the key exchange protocol, which provides stronger protection against offline dictionary attacks and password guessing than WPA2-Personal. WPA3 also requires protected management frames, which are encrypted frames that prevent spoofing, replay, or denial-of-service attacks on management frames such as deauthentication or disassociation frames. WPA, WPA2, and OWE do not support SAE or require protected management frames.


NEW QUESTION # 179
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