Remember Wi-Fi 4
Full name: Wi-Fi generation 4, based on IEEE 802.11n
Memory aid: Four = n; multiple antennas share the work.
802.11n can operate in 2.4 or 5 GHz; products vary.
Study area: Wi-Fi & radio · Batch 2
Relevant study for: CompTIA Network+ N10-009 · Cisco CCNA 200-301 · CompTIA A+ Core 1 220-1201 · ISC2 CISSP 2024 outline
Practice with exam flashcards →Networking & Connectivity / Knowledge library
Wi-Fi 4 — Wi-Fi generation 4, based on IEEE 802.11n
Introduces high-throughput features including MIMO.
Why learn Wi-Fi 4 — Wi-Fi generation 4, based on IEEE 802.11n?
Introduces high-throughput features including MIMO.
Where it came from
802.11n can operate in 2.4 or 5 GHz; products vary.
- Memory aid (a learning cue, not the expansion): Four = n; multiple antennas share the work.
Build your understanding
Work through these exercises in order. Try the task before opening a reference.
- Without looking, expand Wi-Fi 4: Wi-Fi generation 4, based on IEEE 802.11n.
- Recall this memory aid: Four = n; multiple antennas share the work.
- Explain the practical use: Introduces high-throughput features including MIMO.
- Explain this distinction: 802.11n can operate in 2.4 or 5 GHz; products vary.
- Identify Wi-Fi 4 in a device specification, architecture diagram, or system inventory.
Documentation and sources
- Wi-Fi Alliance MAC/PHY generations (www.wi-fi.org)