Practice Quiz

CompTIA A+ 220-701/702 Practice Exam

Category - Essentials

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Which of the following is not an attribute of a CMOS battery?

  1. CMOS batteries are small and are attached directly to the motherboard
  2. CMOS batteries are loosely held to the motherboard by 2-4 clips
  3. CMOS batteries produce more waste heat than other forms of logic
  4. CMOS batteries are mostly circular in shape (although not always)
Explanation

Answer - C - CMOS devices are designed with two transistors, only one of which is on at any given time. The system draws power only when switching between on and off states, and prodces less waste heat than other devices.

Key Takeaway: CMOS batteries maintain the time, date, hard disk, and other configuration settings in the CMOS memory.
 

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