In Bluetooth, which device type initiates communication in a piconet?

Question

BlackTom AI · Accepted Answer

To tackle the question, I will evaluate each option in the context of how a Bluetooth piconet is formed.
Option a: 'Scatternet controller' — This device is involved in establishing multiple piconets, but a scatternet controller does not initiate the master-slave relationship within a single piconet. It’s more about management across networks rather than the initial master role in a piconet. This makes this choice incorrect for the question.
Option b: 'Any active slave' — In a piconet, slaves do not initiate the connection; they respond to a master after it takes control. Since the initiating role is not performed by a slave, this option is inaccurate.
Option c: 'Master device' — In Bluetooth piconets, one device acts as the master and controls the timing and frequency hopping for the piconet. The master scans for and can connect with slaves, effectively initiating the communication link. This aligns with the standard Bluetooth piconet architecture, making this option correct.
Option d: 'First device powered on' — The power-on order does not determine who initiates communication. A device that powers on first does not automatically become the master; master-slave roles are established through Bluetooth connection procedures and master election, not simply by power-on timing. Therefore, this choice is incorrect.
In summary, the key concept is that the master device governs the piconet's communication schedule and links with slaves, which distinguishes option c as the correct description, while the other options misstate the initiating role or the mechanism of establishing the connection.

In Bluetooth, which device type initiates communication in a piconet?单项选择题

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