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!

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DDR RAM operates at how many volts?

  1. 1.8V

  2. 2.5V

  3. 3.3V

  4. 5V

The correct answer is: 2.5V

The correct answer is that DDR RAM operates at 2.5 volts. This voltage standard was developed during the design of DDR (Double Data Rate) SDRAM, which significantly improves performance compared to its predecessor, SDR SDRAM. The lower voltage of 2.5V allows for reduced power consumption and heat generation, making it more efficient for modern computing needs. Higher voltage options such as 3.3V and 5V are associated with older RAM technologies and would not be suitable for DDR RAM. Similarly, while 1.8V is relevant to later memory technologies like DDR2 and DDR3, it does not apply to the original DDR RAM, which is the focus of the question.

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