Most companies keep at least two versions of any database they are using.
A. True
B. False
Answer: Option B
Solution (By Examveda Team)
Option B: False - Most companies typically maintain multiple versions of their databases for backup and recovery purposes. This practice ensures that if there are issues with the current version or data corruption occurs, they can revert to a previous version to minimize data loss and downtime. However, maintaining exactly two versions is not a strict rule; the number of versions kept may vary depending on the company's policies, needs, and the criticality of the data.Conclusion:
The statement "Most companies keep at least two versions of any database they are using" is Option B: False. Hence, the correct answer is False.
Related Questions on Introduction to SQL
You can add a row using SQL in a database with which of the following?
A. ADD
B. CREATE
C. INSERT
D. MAKE
The command to remove rows from a table 'CUSTOMER' is:
A. REMOVE FROM CUSTOMER ...
B. DROP FROM CUSTOMER ...
C. DELETE FROM CUSTOMER WHERE ...
D. UPDATE FROM CUSTOMER ...
A. limits the column data that are returned.
B. limits the row data are returned.
C. Both A and B are correct.
D. Neither A nor B are correct.
Which of the following is the original purpose of SQL?
A. To specify the syntax and semantics of SQL data definition language
B. To specify the syntax and semantics of SQL manipulation language
C. To define the data structures
D. All of the above

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