When installing external SCSI devices, terminators are required on: (Select TWO)
Click on the arrows to vote for the correct answer
A. B. C. D. E.AD.
SCSI (Small Computer System Interface) is a type of interface used to connect various devices to a computer, including external hard drives, scanners, and tape drives. When installing external SCSI devices, terminators are required to prevent signal reflection and interference on the SCSI bus. The correct answers are D) the last device and C) the first device.
The SCSI bus is a shared communication channel, where multiple devices communicate with each other simultaneously. Each device connected to the SCSI bus must have a unique identifier, called a SCSI ID. These IDs are assigned to devices using jumpers or switches on the devices themselves.
When installing external SCSI devices, terminators are required on the first and last devices on the SCSI bus. Terminators are small devices that plug into the end of the SCSI chain to terminate the bus and prevent signal reflection. If terminators are not used, the SCSI bus can experience data errors, communication problems, or even complete failure.
The first device on the SCSI bus is typically the SCSI adapter itself. Therefore, terminators are required on the SCSI adapter and the last device on the SCSI chain. The last device is the one farthest from the SCSI adapter.
Therefore, option C (the first device) and option D (the last device) are correct answers. Options A, B, and E are incorrect as terminators are not required on the SCSI adapter or on each device. Additionally, option E is not relevant, as parallel ports are not used for SCSI communication.