Question

compared to stored analog data, what is a disadvantage of stored digital data?
a. multiple copies of the stored data take up very little space.
b. they are vulnerable to hackers and viruses.
c. stored data are made up of only two different values.
d. they lose quality when they are copied several times.

Explanation:

• Option A is an advantage as it shows digital data's space - efficiency.
• Option C is a characteristic of digital data (binary - 0 and 1) but not a disadvantage.
• Option D is incorrect as digital data can be copied without quality loss.
• Option B: Digital data, being in a digital format (e.g., on a computer system), is more vulnerable to hackers (who can access and manipulate it) and viruses (which can corrupt it) compared to analog data (e.g., old - fashioned vinyl records which are not as easily targeted by such digital threats).

Answer:

B. They are vulnerable to hackers and viruses.