Question

Select all statements that correctly describe the ramifications of important features supported by modern DBMS.

Answer 1

Answer:  

"Option b and Option d" is the correct option for this question.

Explanation:

In the database, datatype belongs to the information storage medium, which can hold a specific type of value. There are several data types, which is used in database like integer, character, series, floating-point and array numbers, and the rules, that give levels of security to information are known as a security constraints. It may be either developed as rules on integrity, mathematical formalism rules or schematic rules, and other choices were wrong which can be described as follows:

• In option a, The asserts, which is in any exchange in a database, should only modify the information, that is effected in acceptable ways is called consistency, that's why it is wrong.
• In option c, The validity and accuracy of the data in the database can not be ensured, that's why it is wrong.