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DBMS helps achieve

A. Centralized control of data

B. Data independence

C. Both A and B

D. Neither A nor B

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  1. The _____ category includes storage media that can be operated on directly by the computers central…
  2. In 2NF
  3. The ______ key of a relation is the attribute (column) or collection of attributes, which uniquely identify…
  4. Drop Table cannot be used to drop a table referenced by a ______ constraint.
  5. Which of the following constitutes a basic set of operations for manipulating relational data?
  6. E-R Modeling is achieved by using ____ diagrams
  7. The transactions like adding an employee, enrolling a student in a course are examples of _______
  8. The part of a database management system which ensures that the data remains in a consistent state is
  9. The one guideline to be followed while designing the database is
  10. As per equivalence rules for query transformation, selection operation distributes over
  11. A relation is in attribute of other composite key. if an attribute of a composite key is dependent on…
  12. If the closure of an attribute set is the entire relation then the attribute set is a
  13. A table can have only one
  14. In an E-R diagram double lines indicate
  15. A DBMS is a ____ user if at most one user can use the system and is mostly restricted to personal computer…
  16. The fact that information in the data warehouse changes far less often and may be regarded as non-real-time…
  17. If a transaction T has obtained an exclusive lock on item Q, then T can
  18. Key to represent relationship between tables is called
  19. Which of the following is not comparison operator?
  20. Protection of data from unauthorized Disclosure results in loss of _______
  21. DFD stands for
  22. Whenever two independent one-to-many relationships are mixed in the same relation, a __________ arises.
  23. The concept of mapping of ______ entity types is the concept in which the for each strong entity type…
  24. Use of UNIQUE while defining an attribute of a table in SQL means that the attribute values are
  25. What will be the number of columns and rows respectively obtained for the operation, A- B, if A B are…
  26. The full form of GUI is _________
  27. Assume transaction A holds a shared lock R. If transaction B also requests for a shared lock on R.
  28. In an ER model,_____ is described in the database by storing its data.
  29. The data models defined by ANSI/SPARC architecture are
  30. Which one is true statement :