Systematic study

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WLAN Standards & Regulations: 20%

In this domain, you will need to learn the following details to succeed in answering the exam questions:

• Describe the functions of WLAN and the networking industry enterprises: These details cover IETF, Wi-Fi Alliance, and Regulatory agencies and domains;
• Describe the fundamental user case settings for the 802.11 wireless networks.
• Identify and conform to the regulatory domain constraints and prerequisites;
• Understand the technologies of spread spectrum and MCS (Modulation & Coding Schemes), as well as learn about DSSS, QAM, BPSK, OFDM, QPSK, and OFDMA & Resource Units;
• Describe and use different PHY solutions of IEEE 802.11-2016 standard based on the amendment, including supported channel widths, spatial streams, and data rates;
• Classify and apply the functional concepts of 802.11 WLAN: The skill areas will include Throughput versus Data Rate, Guard Interval, Primary channels, Bandwidth, and Adjacent non-overlapping & overlapping channels;
• Explain the OSI model layers that are impacted by the 802.11-2016 amendments and standard;

Reference: https://www.cwnp.com/certifications/cwna

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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:

• Application of AES with CCMP for encryption and integrity
• WPA2-Enterprise -configuring wireless networks to use 802.1X including connecting to RADIUS servers and appropriate EAP methods
• Understand interference mitigation options including removal of interference source or change of wireless channel usage
• Identify and troubleshoot common wireless issues (CHAPTER 13)
• WLAN Troubleshooting
• Use of wireless LAN scanners for troubleshooting tasks
• Protected management frames
• Verify and document that design requirements are met including coverage, throughput, roaming, and connectivity with a post-implementation validation survey (CHAPTER 12)
• Perform application testing to validate WLAN performance (CHAPTER 12)
• Describe common security options and tools used in wireless networks
• Simultaneous Authentication of Equals (SAE) in WPA3 as an enhancement for legacy pre-shared key technology
• Use of management, monitoring and logging systems for troubleshooting tasks
• Real-time application testing
• Use of protocol analyzers for troubleshooting tasks
• Use of wireless validation software (specifically survey software and wireless scanners)
• Understand the purpose of Opportunistic Wireless Encryption (OWE) for public and guest networks
• Identify RF disruption from 802.11 wireless devices including contention vs. interference and causes/sources of both including co-channel contention (CCC), overlapping channels, and 802.11 wireless device proximity
• Use of protocol analyzers for validation tasks
• Network and service availability
• Use of spectrum analyzers for identifying sources of interference
• Wireless Intrusion Prevention System (WIPS) and/or rogue AP detection
• Understand basic security enhancements in WPA3 vs. WPA2
• Protocol and spectrum analyzers
• VoIP testing
• WPA2-Personal including limitations and best practices for pre-shared (PSK) use
• Identify causes of insufficient throughput in the wireless distribution systems including LAN port speed/duplex misconfigurations, insufficient PoE budget, and insufficient Internet or WAN bandwidth
• Access control solutions (e.g. captive portals, NAC, BYOD)
• Understand basic security enhancements of encryption and integrity in WPA3 (e.g. CCMP, GCMP, AES)
• Identify and configure effective security mechanisms for enterprise WLANs
• Best practices in secure management protocols (e.g. encrypted management HTTPS, SNMPv3, SSH2, VPN and password management)
• Understand basic concepts of WPA3 and Opportunistic Wireless Encryption (OWE) and enhancements compared to WPA2
• Identify and solve RF interference using spectrum analyzers
• Throughput testing
• Use of throughput testers for validation tasks
• Use of spectrum analyzers for validation tasks
• Describe and apply common troubleshooting tools used in WLANs (CHAPTER 13)
• Understand and use the basic features of validation tools (CHAPTER 12)
• Identify sources of RF interference from non-802.11 wireless devices based on the investigation of airtime and frequency utilization
• Locate and identify sources of RF interference (CHAPTER 12)
• Fast Secure Roaming methods

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Understanding functional and technical aspects of CWNA® - Certified Wireless Network Administrator Security Principles and Practices

The following will be discussed in CWNP CWNA-108 exam dumps:

• Reflection, refraction, diffraction and scattering
• Return Loss
• RSSI
• Omni-directional antennas
• Maximal Ratio Combining (MRC)
• Attenuation
• Decibel (dB)
• dBm to mW conversion rules of 10 and 3
• Watt and milliwatt
• Antenna diversity types
• Absorption
• Lightning arrestors and grounding rods/wirestween inside execution measures and client assumptions for execution
• SNR
• Spatial multiplexing (SM)
• Apply the basic concepts of RF mathematics and measurement
• Highly directional antennas
• Beamwidths
• Explain and apply the functionality of RF antennas, antenna systems, and accessories available
• Multipath and RF interference
• Define and explain the basic characteristics of RF and RF behavior (CHAPTER 2)
• dBm and dBi
• Transmit Beamforming (TxBF)
• Wavelength, frequency, amplitude, phase, sine waves
• Reading Azimuth and Elevation charts for different antenna types
• Gain and loss
• Polarization
• Semi-directional antennas
• MIMO
• Radio chains
• Passive gain
• RF and physical line of sight and Fresnel zone clearance
• Noise floor
• CWNP
• RF propagation and coverage
• Voltage Standing Wave Ratio (VSWR)
• Antenna orientation
• Equivalent Isotropically Radiated Power (EIRP)
• Amplification
• Free Space Path Loss (FSPL)
• RF cables and connectors
• Identify RF signal characteristics as they relate to antennas

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