What does Optical storage refer to?
Difficulty: Medium
About this MCQ
This Medium Memory & Storage question asks: What does Optical storage refer to? The correct choice is D. A storage technology that uses laser light to read and write data on discs such as CDs and DVDs.. Read the options below, commit to one, then use the explanation to see why that choice holds and why the others do not.
Memory & Storage items like this one are written for Pakistan exams such as CSS, FPSC, PPSC, and NTS. The difficulty label is a hint about how much of the topic the stem assumes, not a score. Tags and exam names, when they are present, tell you where else the same idea is tested. Previous and next links stay in Memory & Storage so you can continue the subject. Related questions point at nearby stems if you want another angle on the same idea.
Treat the explanation as part of the question, not a footnote. If you missed it, reread the stem against the correct option before you open the next Memory & Storage item. A timed quiz is the same pool with a clock and a score. A past paper is a full sitting rather than this single question.
- A. Storage that retains data permanently and is not directly accessed by the CPU, such as a hard drive.
Why not A: “Storage that retains data permanently and is not directly accessed by the CPU, such as a hard drive.” does not fit this question. The answer is A storage technology that uses laser light to read and write data on discs such as CDs and DVDs..
- B. Memory that loses its stored data when power is removed, such as RAM.
Why not B: “Memory that loses its stored data when power is removed, such as RAM.” does not fit this question. The answer is A storage technology that uses laser light to read and write data on discs such as CDs and DVDs..
- C. A characteristic of SSDs describing the limited number of write cycles that flash memory cells can endure.
Why not C: “A characteristic of SSDs describing the limited number of write cycles that flash memory cells can endure.” does not fit this question. The answer is A storage technology that uses laser light to read and write data on discs such as CDs and DVDs..
- D. A storage technology that uses laser light to read and write data on discs such as CDs and DVDs. ✓
Correct answer
D. A storage technology that uses laser light to read and write data on discs such as CDs and DVDs.
Explanation
A storage technology that uses laser light to read and write data on discs such as CDs and DVDs option D is the accepted answer to What does Optical storage refer to Option A Storage that retains data permanently and is not directly accessed by the CPU such as a hard drive does not fit this question Option B Memory that loses its stored data when power is removed such as RAM does not fit this question Option C A characteristic of SSDs describing the limited number of write cycles that flash memory cells can endure does not fit this question For this Memory Storage question the accepted answer is.
Source: Memory & Storage Official Reference Guide
Tags: computer science, memory, storage, computer hardware
Submitted by: MCQsHub Editorial
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