Q: Which type of ports are used in multi-master systems to prevent errors?

A Bidirectional port
B Tridirectional port
C Multi-directional port
D Unidirectional port

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Answer: A

Explanation:

In a multi-master system, bidirectional ports are used to prevent errors. Each master can monitor the line to confirm that it is in the expected state. If there is a mismatch or collision, transmission by the master is discontinued.

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Q: Which type of ports are used in multi-master systems to prevent errors?

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