TestOut LabSim A+ Certification Practice Exam

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Which of the following is NOT a disadvantage of SATA?

  1. Limited cable length

  2. Lower data transfer speeds compared to PATA

  3. Higher cost

  4. Poor backward compatibility

The correct answer is: Lower data transfer speeds compared to PATA

The correct answer highlights a key advantage of SATA (Serial ATA) over its predecessor, PATA (Parallel ATA). While PATA can have lower data transfer speeds and is limited by its parallel architecture, SATA was designed to provide faster data transfer rates. SATA has significantly higher speeds, with initial versions offering up to 1.5 Gb/s, while the most current standards can reach 6 Gb/s or more. This focus on increased data transfer rates makes option B not a disadvantage of SATA; rather, it is one of the main improvements that SATA provides over PATA. In contrast, limited cable length is indeed a disadvantage since SATA's maximum cable length is 1 meter compared to PATA's longer cable limits, and SATA can also have higher costs in certain situations, particularly with high-performance drives. Furthermore, while SATA has made strides in backward compatibility, it is not universally compatible with older technologies like PATA without the appropriate adaptors, making it less backward compatible overall.

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