COMPTIA A+ Practice Exam

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Ace your COMPTIA A+ certification with our practice exam. Engage with a variety of questions including multiple choice and performance-based, complete with hints and detailed explanations. Prepare effectively and boost your confidence for the big day!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

What are the specifications for LVD Ultra 2 SCSI in terms of transfer rate and bits?

80 MB/sec and 16 bits
40 MB/sec and 16 bits
20 MB/sec and 8 bits
10 MB/sec and 8 bits

The correct answer is: 80 MB/sec and 16 bits

The specifications for LVD Ultra 2 SCSI indicate a transfer rate of 80 MB/sec and a data width of 16 bits. LVD (Low Voltage Differential) technology was developed to enhance the performance of SCSI interfaces, particularly in terms of speed and signal integrity over longer distances. Ultra 2 SCSI achieves a transfer rate of 80 MB/sec by using a 16-bit data bus, which allows for greater data throughput compared to earlier SCSI standards. Essentially, the 80 MB/sec rate reflects the maximum theoretical transfer speed when the bus is fully utilized under optimal conditions. Additionally, the use of a 16-bit bus doubles the amount of data that can be transferred in the same clock cycle compared to an 8-bit bus, thereby enhancing overall performance. The other options present lower transfer rates and different bit configurations that do not align with the specifications for LVD Ultra 2 SCSI. Understanding these specifications is crucial for identifying suitable SCSI devices and ensuring system compatibility.