Which of the following is an advantage of optical storage over magnetic storage?
A. Lower cost per GB
B. Higher capacity
C. Faster read/write speeds
D. More durable (resistant to magnetic fields)
Answer: Option D
Solution (By JKSSB Mock Tests)
Optical discs are immune to magnetic fields and are relatively durable under normal handling, while magnetic disks can be damaged by strong magnetic fields. However, optical is slower and lower capacity.
Explanation:
SSDs have much lower access times than HDDs and optical discs because they have no moving parts and use flash memory. Magnetic tape is slower for random access.
Explanation:
A cylinder consists of the same track number on each platter in a hard disk drive, all at the same distance from the center. This allows the heads to access data without moving.
Explanation:
Flash drives can be formatted with various file systems including FAT32, exFAT, and NTFS, depending on compatibility and file size requirements.
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