What is the use of backup in a database?
Verified Answer
A. To check the working of the system
B. For safety
C. To provide record of transaction
D. To find the lost data
E. None of these
Explanation:
The primary purpose of a database backup is to create a copy of data that can be restored in case of data loss, corruption, or system failure, effectively allowing you to recover or (D) 'find the lost data'. While it contributes to (B) safety, its direct function is recovery. (A) Checking system working or (C) transaction records are not the main purpose. Thus, (D) To find the lost data is correct.