TestOut LabSim A+ Certification Practice Exam

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What must be set for two IDE devices sharing the same channel?

Both devices as master
Both devices as slave
One device as master and the other as slave
Either device as master

The correct answer is: One device as master and the other as slave

When configuring two IDE devices to share the same channel, it is essential that one device is set as the master and the other as the slave. This setup allows the IDE controller to properly manage data communication between the two devices on the same channel. In an IDE configuration, the master device takes precedence in controlling the channel and responding to requests from the motherboard. The slave device functions under the master's control, allowing both devices to operate without conflict. If both devices were set as masters or slaves, it would result in a conflict on the channel, leading to malfunctioning hardware and communication failures. This configuration is fundamental for proper operation and ensures that the devices can share the data bus efficiently without interference, which is why having one device as master and the other as slave is the correct approach for managing two IDE devices on the same channel.