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Network Security for WLAN: 10%

Here a potential candidate needs to prepare for the following objectives:

• Understand the fundamental concepts of OWE (Opportunistic Wireless Encryption), WPA3, and improvements compared to WPA2;
• Establish and configure efficient security mechanisms designed for enterprise WLANs;
• Understand the fundamental security enhancements in WPA2 versus WPA3;
• Explain basic security tools and options utilized within wireless networks.
• Establish the options of weak security that are not needed within enterprise WLANs;

Target Audience for CWNA-108 Test

This test is developed for admins in wireless technology who wish to gain solid experience in WLAN technology, how it works, and how it is managed.

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:

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

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:

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

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