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| Section | Objectives |
|---|
Basic RF Characteristics (15%) |
| Describe RF signal characteristics | - Frequency - Amplitude - Phase - Wavelength |
| Explain RF behaviors and signal propagation | - Gain and loss - Reflection - Refraction - Scattering - Free space path loss |
| Understand how to detect RF signal factors | - Wireless scanner tools - Client signal strength reports - RSSI vs. dBm - Output power vs. received signal strength |
| Understand basic RF channel plans | - Available channels by protocol - Regulatory constraints on channel selection - Best practices for channel selection - Co-Channel Interference (CCI) and Co-Channel Contention (CCC) |
| Describe the basic differences among antenna types | - Omnidirectional - Semi-directional - Highly directional - Antenna mounting kits |
| Use the appropriate external antenna when required | - Antenna pattern charts - Antenna cables and connectors - Passive antenna gain |
Wireless Device Features and Capabilities (25%) |
| Describe device types and varying capabilities | - Laptops - Tablets - Mobile phones - Desktops - Specialty devices (video cameras, Wi-Fi peripheral connections, printers, IoT, etc.) |
| Explain the basic WLAN location processes for 802.11 wireless networks | - Passive scanning - Active scanning |
| Describe the basic steps required in the WLAN connection process for 802.11 wireless networks | - Authentication - Association - 802.1X/EAP authentication - 4-way handshake |
| Determine the RF features supported by client and IoT devices | - Supported channels - Channel widths - Transmit power - Receive sensitivity |
| Configure client and IoT devices | - Configure client drivers for optimum performance (band preference, roaming threshold, regulatory domain, etc.) for 802.11 devices- Configure various client operating systems for wireless connectivity with 802.11 devices Windows
- macOS
- Chrome OS
- Linux
- Tablets and mobile phones (iOS and Android)
- Configure various IoT devices based on the supported protocol - Provisioning
- Network join
- Security
|
Wireless Protocol Features and Capabilities (25%) |
| Identify 802.11 AP features and capabilities and understand configuration options related to them | - PHY and frequency band support - Single-band vs. dual-band - Output power control - Operational modes - Multiple-SSID support - Guest access - Security features - Management interfaces (web-based, CLI, remote CLI) - Internal and external antennas - PoE support |
| Use appropriate 802.11 AP mounting kits for a specified installation location | - Wall mount - Pole/mast mount - Ceiling mount |
| Ensure proper PoE provisioning for 802.11 APs and other wireless devices, when required | - Power levels required - PoE switches - PoE injectors - Testing power availability |
| Ensure IoT devices support the appropriate protocols and configuration | - Common wireless IoT protocols - Use cases for wireless IoT protocols |
Configuration of Security Parameters (15%) |
| Understand the basics of 802.11 standard security solutions | - WPA vs. WPA2 vs. WPA3 - Personal vs. Enterprise - 6 GHz security requirements - Pre-Shared Key - 802.1X/EAP - Common EAP methods |
| Identify legacy security technologies that should not be used | - WEP - Shared Key Authentication - Hidden SSIDs - MAC filtering |
| Understand the basic security options available for common wireless IoT protocols | |
Troubleshooting Common Wireless Connection Issues (20%) |
| Troubleshoot connectivity problems | - Configuration errors - Interference - Poor signal strength - Driver issues - Supplicant issues - Feature incompatibility |
| Troubleshoot performance problems | - Configuration errors - Interference - Low data rates - Co-channel interference (CCI) and Co-channel contention (CCC) |
| Troubleshoot security problems | - Configuration errors - Incorrect passphrases - Incompatible EAP methods - Incorrect network keys - Incorrect join keys |
| Troubleshoot mobility problems | - Configuration errors - Improper network settings - Unsupported fast roaming methods - Non-implemented roaming features |
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