Question

which two statements explain reasons to use a computer program to encode digital data?
a. the encoding makes digital data more secure.
b. encoded data can be changed by a computer virus.
c. only authorized users can use these data.
d. it adds an extra step that takes more time.

Explanation:

Encoding digital data with a computer program provides security. It restricts access to only authorized users as the data is in an unreadable format for others. Option B is a drawback and option D is a negative aspect of encoding in terms of time - consumption.

Answer:

A. The encoding makes digital data more secure., C. Only authorized users can use these data.