TestOut LabSim A+ Certification Practice Exam

Which statement is true regarding single and double sided memory?

1. Single-sided memory uses more modules than double-sided memory of the same capacity

2. Single-sided memory uses half the number of memory modules compared to double-sided memory of the same capacity

3. Single-sided memory is only available for older systems

4. Double-sided memory is always faster than single-sided memory

The correct answer is: Single-sided memory uses half the number of memory modules compared to double-sided memory of the same capacity

The chosen answer is accurate because single-sided memory modules contain memory chips on only one side, allowing for a smaller number of chips to be used to achieve a certain capacity compared to double-sided memory modules, which have chips on both sides. Consequently, to attain the same total memory capacity, double-sided memory generally requires more memory modules. For instance, if a motherboard supports double-sided memory, it can potentially accommodate a larger total memory capacity within the same space compared to single-sided modules; thus, fewer double-sided modules may be needed to achieve a specific total capacity. In contrast, single-sided memory may require more individual modules if that same overall capacity needs to be achieved. In terms of compatibility and performance, single-sided memory is available for various systems, not just older ones, so stating it is exclusive to older systems is misleading. Regarding speed, the performance of memory doesn't solely hinge on being single or double-sided; it also depends on the specific memory technology, speed ratings (like DDR, DDR2, etc.), and other factors influencing the overall memory architecture. Hence, the assertion that double-sided memory is always faster than single-sided is not universally accurate.