Question

what are two reasons that digital storage of data is so reliable?
a. copied data decrease in quality each time a copy is made.
b. memory chips do not break easily.
c. digital data are easy to change.
d. digital data can usually be recovered even if the storage device stops working.

Explanation:

• Option A: Copied digital data does not decrease in quality each time a copy is made. Digital data is represented in binary (0s and 1s), and when copied, the binary representation is replicated exactly. So, this option is incorrect.
• Option B: Memory chips are designed to be durable. They are less prone to physical damage compared to some older storage media (like floppy disks). This durability contributes to the reliability of digital storage as the data - holding components (memory chips) are relatively robust.
• Option C: The fact that digital data is easy to change (editability) is not a reason for its reliability in storage. Editability is more about usability in terms of modifying the content, not about how well the data is retained over time or through different storage scenarios.
• Option D: There are data recovery techniques available for digital storage devices. Even if a storage device (like a hard drive or a USB drive) stops working due to mechanical or electrical issues, in many cases, the digital data can be recovered using specialized software and hardware tools. This ability to recover data enhances the perception of digital storage reliability.

Answer:

B. Memory chips do not break easily; D. Digital data can usually be recovered even if the storage device stops working.