TestOut LabSim A+ Certification Practice Exam

Which storage device types use magnetic film or aluminum platters?

1. Memory stick and SSD

2. Floppy disk and hard disk

3. Blue-ray and CD

4. MMC and SD card

The correct answer is: Floppy disk and hard disk

The choice identified as correct refers to floppy disks and hard disks, which are both types of storage devices that utilize magnetic film or aluminum platters for data storage. Floppy disks, an early form of removable storage, consist of a thin, flexible magnetic film encased in a square plastic shell. Data is recorded on the magnetic film, allowing for the storage and retrieval of information. Hard disks, also known as hard disk drives (HDDs), employ spinning aluminum platters that are coated with a magnetic film. Information is written to and read from these platters using read/write heads. The magnetic properties of the film allow the drive to retain data even when power is turned off, making it suitable for long-term storage. The other options presented involve storage technologies that utilize different mechanisms. Memory sticks (which generally refer to USB flash drives) and SSDs (solid-state drives) use flash memory technology, which relies on electronic components rather than magnetic media. Blu-ray and CDs are optical storage media that utilize lasers to read and write data on reflective surfaces, while MMC and SD cards are also flash storage devices. This distinction in the underlying technology highlights why the choice regarding floppy disks and hard disks is the appropriate answer.