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In this course we will learn all about Aruba ACMA exam topics and wireless fundamental information.Topics include:• Wavelength, frequency, amplitude, phase, sine waves• RF propagation and coverage• Reflection, refraction, diffraction and scattering• Multipath and RF interference• Gain and loss• Amplification• Attenuation• Absorption• Voltage Standing Wave Ratio (VSWR)• Return Loss• Free Space Path Loss (FSPL)• Watt and milliwatt• Decibel (dB)• dBm and dBi• Noise floor• SNR• RSSI• dBm to mW conversion rules of 10 and 3• Equivalent Isotropically Radiated Power (EIRP)• RF and physical line of sight and Fresnel zone clearance• Beamwidths• Passive gain• Polarization• Antenna diversity types• Radio chains• Spatial multiplexing (SM)• Transmit Beamforming (TxBF)• Maximal Ratio Combining (MRC)• MIMO • Omni-directional antennas• Semi-directional antennas• Highly directional antennas• Reading Azimuth and Elevation charts for different antenna types• Antenna orientation• RF cables and connectors• Lightning arrestors and grounding rods/wires• IEEE• Wi-Fi Alliance• IETF• Regulatory domains and agencies• DSSS - 802.11• HR-DSSS - 802.11b• OFDM - 802.11a• ERP - 802.11g• Wi-Fi 4 - HT - 802.11n• Wi-Fi 5 - VHT - 802.11ac• Wi-Fi 6 - HE - 802.11ax• DSSS• OFDM• OFDMA and Resource Units• BPSK• QPSK• QAM (16, 64, 256,1024)• Primary channels• Adjacent overlapping and non-overlapping channels• Throughput vs. data rate• Bandwidth• Guard Interval• Frequency bands used by the 802.11 PHYs• Available channels• Regulatory power constraints• Dynamic Frequency Selection (DFS)• Transmit Power Control (TPC)• Wireless LAN (WLAN) - BSS and ESS• Wireless bridging• Wireless Ad-Hoc (IBSS)• Wireless Mesh• Stations (STAs)• Basic Service Set (BSS) (Infrastructure mode)• SSID• BSSID• Extended Service Set (ESS)• IBSS (Ad-Hoc)• Distribution System (DS)• Distribution System Media (DSM)• MSDU, MPDU, PSDU, and PPDU• A-MSDU and A-MPDU• MAC frame format• MAC addressing• Management• Control• Data• Scanning (active and passive)• Authentication• Association• Open System Authentication and Shared Key authentication• Connecting to 802.1X/EAP and Pre-Shared Key authentication networks• BSS selection• Connecting to hidden SSIDs• DCF• EDCA• RTS/CTS• CTS-to-Self• NAV• Interframe spaces (SIFS, DIFS, EIFS, AIFS)• Physical carrier sense and virtual carrier sense• Hidden node• Roaming• Power save modes and frame buffering• Protection mechanisms• Access Points (APs)• WLAN controllers• Wireless network management systems• Wireless bridge and mesh APs• Client devices • Power Source Equipment• Powered Device• Midspan and endpoint PSEs• Power classes to include power differences between PSE and PD• Power budgets and powered port density• Centralized data forwarding• Distributed data forwarding• Control, Management and Data planes• Scalability and availability solutions• Tunneling, QoS and VLANs• Design considerations for data• Design considerations for voice• Design considerations for video• Design considerations for location services including (RTLS)• Design considerations for highly mobile devices (e.g. tablets and smartphones)• Capacity planning for high and very high-density environments• Design considerations for guest access/BYOD• Design considerations for supporting legacy 802.11 devices• AirTime Fairness• Band steering• Dynamic power and channel management features• DHCP for client addressing, AP addressing and/or controller discovery• DNS for address resolution for clients and APs• Time synchronization protocols (e.g. NTP, SNTP)• VLANs for segmentation• Authentication services (e.g. RADIUS, LDAP)• Access Control Lists for segmentation• WEP• Shared Key authentication• SSID hiding as a security mechanism• MAC filtering• Use of deprecated security methods (e.g. WPA and/or WPA2 with TKIP)• Wi-Fi Protected Setup (WPS)• Application of AES with CCMP for encryption and integrity• WPA2-Personal including limitations and best practices for pre-shared (PSK) use• WPA2-Enterprise -configuring wireless networks to use 802.1X• Access control solutions (e.g. captive portals, NAC, BYOD)• Protected management frames• Fast Secure Roaming methods• Wireless Intrusion Prevention System (WIPS) and/or rogue AP detection• Protocol and spectrum analyzers• Best practices in secure management protocols• Understand basic security enhancements in WPA3 vs. WPA2• Understand basic security enhancements of encryption and integrity• Network and service availability• VoIP testing• Real-time application testing• Throughput testing• Use of protocol analyzers for troubleshooting tasks• Use of spectrum analyzers for identifying sources of interference• Use of management, monitoring and logging systems for troubleshooting tasks• Use of wireless LAN scanners for troubleshooting tasks• Identify and troubleshoot common wireless issues

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