Question: in two sentences for each question 1) What would the alternative be if database management systems were not designed to handle data control issues such

in two sentences for each question

1) What would the alternative be if database management systems were not designed to handle data control issues such as data security, backup and recovery, and concurrency control?

2) What is data independence? Why is it desirable?

3) What expectation should there be for a database management system with regard to data independence? Why?

4) What are the four major DBMS approaches? Which approaches are used the most and least today

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