220-802 · Question #589
Which of the following wireless standards used on modern smartphones depends on direct client- to-client handshake pin code authorization for establishing transmission connection?
The correct answer is D. Bluetooth. Bluetooth uses a pairing process to establish a secure connection between two devices. During pairing, the devices perform a handshake that often involves exchanging or confirming a PIN code or passkey, ensuring both parties have authorized the connection before data can be…
Question
Which of the following wireless standards used on modern smartphones depends on direct client- to-client handshake pin code authorization for establishing transmission connection?
Options
- A802.11n Wi-Fi
- BWiMAX
- CInfrared
- DBluetooth
How the community answered
(29 responses)- A3% (1)
- B3% (1)
- C3% (1)
- D90% (26)
Explanation
Bluetooth uses a pairing process to establish a secure connection between two devices. During pairing, the devices perform a handshake that often involves exchanging or confirming a PIN code or passkey, ensuring both parties have authorized the connection before data can be transmitted. This client-to-client (peer-to-peer) PIN-based authorization is a defining characteristic of Bluetooth. 802.11n Wi-Fi (A) connects devices to an access point (infrastructure mode) using network passwords/keys, not a direct device-to-device PIN handshake. WiMAX (B) is a long-range broadband wireless standard similar to cellular, used for wide-area network access. Infrared (C) is an older, line-of-sight technology that does not use PIN-based handshake authorization.
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