Network+ Wireless Technology Types – Flashcards

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Bluetooth

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Bluetooth – A short-range wireless technology for pairing devices like headsets, keyboards, and fitness trackers. Purpose: Great for wireless connections between nearby personal devices.

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NFC (Near Field Communication)

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Near Field Communication (NFC) – Allows devices to communicate when held a few centimeters apart. Purpose: Used in contactless payments like Apple Pay and Google Wallet.

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Tethering

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Tethering – Shares a phone’s internet connection with another device via USB, Bluetooth, or Wi-Fi. Purpose: Lets your laptop go online using your mobile data when no Wi-Fi is available.

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Z-Wave

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Z-Wave – A low-power, proprietary mesh network protocol used in smart home automation. Purpose: Connects devices like smart locks and thermostats over short ranges without using Wi-Fi.

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ZigBee

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ZigBee – An open wireless standard for creating mesh networks between smart devices. Purpose: Ideal for connecting smart home sensors and lights over short distances with low power.

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802.11a

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802.11a – 5 GHz frequency, up to 54 Mbps, ~120 ft range. Purpose: Early faster wireless option, less interference but shorter range than 2.4 GHz.

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802.11b

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802.11b – 2.4 GHz frequency, up to 11 Mbps, ~140 ft range. Purpose: First widely used home Wi-Fi; longer range but more interference.

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802.11g

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802.11g – 2.4 GHz frequency, up to 54 Mbps, ~140 ft range. Purpose: Backward-compatible with 802.11b but with faster speeds.

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802.11n (Wi-Fi 4)

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802.11n (Wi-Fi 4) – 2.4 GHz and 5 GHz, up to 600 Mbps with MIMO support. Purpose: Improved speed and reliability using multiple antennas.

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802.11ac (Wi-Fi 5)

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802.11ac (Wi-Fi 5) – 5 GHz only, up to 3.5 Gbps, supports MU-MIMO. Purpose: Great for streaming and gaming in modern homes with many devices.