CWNA-109考試證照將成為您通過CWNP Wireless Network Administrator (CWNA)的可靠支持

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CWNP CWNA-109 Exam Syllabus Topics:

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

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CWNA-109考試 & CWNA-109熱門考古題

VCESoft題供了不同培訓工具和資源來準備CWNP的CWNA-109考試，編制指南包括課程，實踐的檢驗，測試引擎和部分免費PDF下載，我們的考題及答案反應的問題問CWNP的CWNA-109考試。

最新的 CWNA Certification CWNA-109 免費考試真題 (Q50-Q55):

問題 #50
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 9dBi gain, what is the EIRP at the antenna element?

答案：C

解題說明：
To calculate the EIRP at the antenna element, we need to add the transmitter output power, subtract the cable loss, and add the antenna gain. All these values need to be converted to dBm first, if they are not already given in that unit. In this case, we have:
Transmitter output power = 50 mW = 10 log (50) dBm = 16.99 dBm Cable loss = 3 dB Antenna gain = 9 dBi EIRP = Transmitter output power - Cable loss + Antenna gain EIRP = 16.99 - 3 + 9 EIRP = 22.99 dBm Rounding up to the nearest integer, we get 23 dBm as the EIRP at the antenna element.


問題 #51
A wireless engineer needs to calculate the total power radiated from an antenna, accounting for transmitter power, cable/connector losses, and antenna gain. What is this calculated value called?

答案：A

解題說明：
Effective Isotropic Radiated Power (EIRP) is the total amount of power that is effectively radiated from an antenna in the direction of maximum gain, calculated by taking the transmitter's output power, subtracting any losses from cables and connectors, and adding the antenna's gain. EIRP is an important calculation because regulatory bodies, such as the FCC, impose maximum EIRP limits for unlicensed WLAN devices to prevent excessive interference, and exceeding these limits without proper licensing is a regulatory violation.


問題 #52
You are implementing a multi-AP WLAN and fast secure roaming is essential. Which one of the following methods is an IEEE 802.11 standard method for fast roaming?

答案：A

解題說明：
FT (Fast Transition) is an IEEE 802.11 standard method for fast roaming. FT is defined in the IEEE 802.11r amendment and is also known as Fast BSS Transition (FBT) or Fast Secure Roaming. FT is a feature that allows a client station to quickly switch from one AP to another within the same ESS (Extended Service Set) without having to re-authenticate and re-associate with each AP. This reduces the latency and packet loss that may occur during roaming, thus improving the user experience and maintaining the security of the connection. FT works by using pre-authentication and key caching mechanisms that allow the client station and the APs to exchange security information before the actual roaming occurs. This way, when the client station decides to roam to a new AP, it can use a fast reassociation request and response that contain only a few fields, instead of a full authentication and association exchange that require more time and data. References: 1, Chapter 9, page 367; 2, Section 6.3


問題 #53
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?

答案：C

解題說明：
Channel 144 is a new channel that was added to the 5 GHz band by the 802.11ac amendment, which defines the VHT (Very High Throughput) PHY for WLANs. Channel 144 has a center frequency of 5720 MHz and a bandwidth of 20 MHz. It can also be combined with adjacent channels to form wider channels of 40 MHz, 80 MHz, or 160 MHz. Channel 144 is available in some regions, such as North America and Europe, but not in others, such as Japan and China.


問題 #54
Your manager asked you to locate a solution that allows for centralized monitoring of WLAN performance over time. He wants a single pane of glass for administration and monitoring of the solution. What do you recommend?

答案：B

解題說明：
The solution that you recommend is an Overlay WLAN monitoring solution. An Overlay WLAN monitoring solution is a system that uses dedicated sensors or probes to monitor the WLAN performance over time. The sensors are deployed throughout the WLAN coverage area and collect data on various metrics such as signal strength, noise level, channel utilization, interference, throughput, latency, packet loss, and QoS. The sensors send the data to a centralized server or appliance that analyzes the data and provides a single pane of glass for administration and monitoring of the solution. An Overlay WLAN monitoring solution can help to detect and troubleshoot WLAN issues, optimize WLAN performance, and generate reports and alerts. References: [CWNP Certified Wireless Network Administrator Official Study Guide: Exam CWNA-
109], page 538; [CWNA: Certified Wireless Network Administrator Official Study Guide: Exam CWNA-
109], page 508.


問題 #55
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