TestOut LabSim A+ Certification Practice Exam

Which type of SCSI termination employs voltage regulators in conjunction with resistors?

1. Passive Termination

2. Active Termination

3. Dynamic Termination

4. Standard Termination

The correct answer is: Active Termination

Active termination is the correct choice because it uses voltage regulators alongside resistors to provide a more stable and reliable termination for SCSI (Small Computer System Interface) devices. This type of termination actively manages the electrical signals and impedance on the SCSI bus, reducing signal reflection and ensuring that data is transmitted accurately over longer cable lengths. By using voltage regulators, active termination helps to maintain a consistent signal level, which is crucial in high-speed data environments where signal integrity is paramount. This is particularly important in SCSI configurations where multiple devices are connected, as it ensures that each device can communicate effectively without interference from reflections caused by improperly terminated lines. Other termination types, while functional, do not employ this combination of voltage regulation and resistors. Passive termination relies solely on resistors to match impedances, which can lead to less effective signal management, especially over longer distances. Dynamic termination, on the other hand, is often specific to certain SCSI standards and adapts its levels based on the active connections, but it does not typically involve voltage regulators in the same way as active termination. Standard termination is a term that may not refer specifically to any recognized SCSI termination type but rather serves as a general reference. Thus, active termination stands out for its