• Home
  • Contact
  • Learn
  • Home
  • Contact
  • Learn
Quadrio Networks - Wi-Fi Professional Services in Vancouver
  • Home
  • Contact
  • Learn

IEEE 802.11 Protocols & Devices
. . . .


3.1. IEEE 802.11 Protocol Architecture

3.1.1. Summarize the processes involved in authentication and association
  • The IEEE 802.11 State Machine
  • Open System Authentication, Shared Key Authentication, and Deauthentication
  • Association, reassociation, and disassociation

3.1.2. Define, describe, and apply the following concepts associated with WLAN service sets
  • Stations
  • BSSs
  • Basic Service Area (BSA)
  • Starting and joining a BSS
  • BSSID
  • SSID
  • Ad Hoc mode and IBSS
  • Infrastructure mode and ESS
  • Distribution System (DS)
  • Distribution System Media (DSM)
  • Layer 2 and Layer 3 roaming

3.1.3. Explain and apply the following power management features of WLANs
  • Active Mode
  • Power Save Mode
  • Unscheduled Automatic Power Save Delivery (U-APSD)
  • WMM Power-Save (WMM-PS)
  • Power Save Multi-Poll (PSMP)
  • Spatial Multiplexing Power Save (SMPS)
  • TIM/DTIM/ATIM
  • VHT TXOP

3.2. IEEE 802.11 MAC & PHY Layer Technologies

3.2.1. Describe and apply the following concepts surrounding WLAN frames
  • IEEE 802.11 Frame Format vs. IEEE 802.3 Frame Format
  • Define terminology related to the MAC & PHY
  • Guard Interval (GI)
  • PSDU, PPDU, and PPDU Formats
  • MSDU and MPDU
  • A-MPDU vs. A-MSDU
  • 802.11 Frame Format and Types
  • Interframe spaces (RIFS, SIFS, PIFS, DIFS, AIFS, EIFS)
  • Block acknowledgements
  • Fragmentation
  • Jumbo frame support (Layer 2)
  • MTU discovery and functionality (Layer 3)

3.2.2. Identify methods described in the IEEE 802.11-2012 standard for locating, joining, and maintaining connectivity with an IEEE 802.11 WLAN
  • Active scanning (Probes)
  • Passive scanning (Beacons)
  • Dynamic Rate Switching (DRS)

3.2.3. Define, describe, and apply IEEE 802.11 coordination functions and channel access methods and features available for optimizing data flow across the RF medium
  • DCF and HCF coordination functions
  • EDCA channel access method
  • RTS/CTS and CTS-to-Self protocols
  • HT channel width operation
  • HT protection mechanisms
  • HT Operation Modes (0, 1, 2, 3)
  • VHT channel width operation
  • VHT protection mechanisms
  • VHT Operating Mode field

3.3. WLAN Infrastructure and Client Devices

3.3.1. Identify the purpose of the following WLAN infrastructure devices and describe how to install, configure, secure, and manage them
  • Autonomous access points
  • Controller-based access points
  • Mesh access points / routers
  • Enterprise WLAN controllers
  • Distributed WLAN architectures
  • Remote office WLAN controllers and/or APs
  • PoE injectors (single and multi-port) and PoE-enabled Ethernet switches
  • WLAN bridges
  • Home WLAN router (teleworker)

3.3.2. Describe the purpose of the following WLAN client adapters and explain how to install, configure, secure, and manage them
  • PC cards (ExpressCard, CardBus, and PCMCIA)
  • USB2/3
  • PCI, Mini-PCI, Mini-PCIe, and Half Mini PCIe cards
  • Workgroup bridges
© COPYRIGHT 2020. ALL RIGHTS RESERVED.