Advance D.B.M.S.
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Multiple Choice Question & answer:-
1. A Database Management System (DBMS) is
A. Collection of interrelated data
B. Collection of programs to access data
C. Collection of data describing one particular enterprise
D. All of the above

2. Which of the following is not a level of data abstraction?
A. Physical Level
B. Critical Level
C. Logical Level
D. View Level

3. Disadvantages of File systems to store data is:
A. Data redundancy and inconsistency
B. Difficulty in accessing data
C. Data isolation
D. All of the above

4. In an Entity-Relationship Diagram Rectangles represents
A. Entity sets
B. Attributes
C. Database
D. Tables

5. Which of the following is not a Storage Manager Component?
A. Transaction Manager
B. Logical Manager
C. Buffer Manager
D. File Manager

6. Data Manipulation Language enables users to
A. Retrieval of information stored in database
B. Insertion of new information into the database
C. Deletion of information from the database
D. All of the above

7. Which of the following is not an Schema?
A. Database Schema
B. Physical Schema
C. Critical Schema
D. Logical Schema

8. Which of the following is Database Language?
A. Data Definition Language
B. Data Manipulation Language
C. Query Language
D. All of the above

9. Which of the following in not a function of DBA?
A. Network Maintenance
B. Routine Maintenance
C. Schema Definition
D. Authorization for data access

10. Which of the following is a Data Model?
A. Entity-Relationship model
B. Relational data model
C. Object-Based data model
D. All of the above

11. Which of the following represents a relationship among a set of values.
A. A Row
B. A Table
C. A Field
D. A Column

12. Column header is refer as
A. Table
B. Relation
C. Attributes
D. Domain

13. A Relation is a
A. Subset of a Cartesian product of a list of attributes
B. Subset of a Cartesian product of a list of domains
C. Subset of a Cartesian product of a list of tuple
D. Subset of a Cartesian product of a list of relations

14. In mathematical term Table is referred as
A. Relation
B. Attribute
C. Tuple
D. Domain

15. In mathematical term Row is referred as
A. Relation
B. Attribute
C. Tuple
D. Domain

16. _______ allow us to identify uniquely a tuple in the relation.
A. Superkey
B. Domain
C. Attribute
D. Schema

17. Minimal Superkeys are called
A. Schema keys
B. Candidate keys
C. Domain keys
D. Attribute keys

18. Which of the following is not Modification of the Database
A. Deletion
B. Insertion
C. Sorting
D. Updating

19. Which of the following is Relation-algebra Operation
A. Select
B. Union
C. Rename
D. All of the above

20. Which of the following in not Outer join?
A. Left outer join
B. Right outer join
C. Full outer join
D. All of the above

21. Who proposed the relational model?
A. Bill Gates
B. E.F. Codd
C. Herman Hollerith
D. Charles Babbage

22. Set of premitted values of each attribute is called
A. Domain
B. Tuple
C. Relation
D. Schema

23. Which of the following in true regarding Null Value?
A. Null = 0
B. Null 0
D. Null 0

24. Logical design of database is called
A. Database Instance
B. Database Snapshot
C. Database Schema
D. All of the above

25. Snapshot of the dta in the database at a given instant of time is called
A. Database Schema
B. Database Instance
C. Database Snapshot
D. All of the above

26. Which of the following is not Unary operation?
A. Select
B. Project
C. Rename
D. Union

27. Which of the following is not binary operation?
A. Union
B. Project
C. Set Difference
D. Cartesian Product

28. Which of the following is correct regarding Aggregate functions?
A. it takes a list of values and return a single values as result
B. it takes a list of values and return a list of values as result
C. it takes a single value and returns a list of values as result
D. it takes a single value and returns a single value as result

29. The Primary key must be
A. Non Null
B. Unique
C. Option A or B
D. Option A and B

30. A command to remove a relation from an SQL database
A. Delete table 
B. Drop table
C. Erase table
D. Alter table
31. which of the following is not an Aggregate function? A. Min B. Max C. SelectD. Avg 32. The attribute that can be divided into other attributes is called A. Simple Attribute B. Composite AttributeC. Multi-valued Attribute D. Derived Attribute 33. In an Entity-Relationship Diagram “Ellipses” represents A. AttributesB. Weak entity set C. Relationship sets D. Multi-valued attributes 34. In an Entity-Relationship Diagram “Diamonds” represents A. Attributes B. Multi-valued attributes C. Weak entity set D. Relationship sets35. What is ACID properties of Transactions? A. Atomicity, Consistency, Isolation, Database B. Atomicity, Consistency, Isolation, DurabilityC. Atomicity, Consistency, Inconsistent, Durability D. Automatically, Concurrency, Isolation, Durability 36. If every non-key attribute is functionally dependent on the primary key, the relation will be in A. First Normal Form B. Second Normal Form C. Third Normal FormD. Fourth Formal Form 37. Database locking concept is used to solve the problem of A. Lost Update B. Uncommitted Dependency C. Inconsistent Data D. All of the above38. UML is stands for A. Universal Modeling Language B. Unified Modeling LanguageC. United Modeling Language D. Uni Modeling Language 39. Data Manipulation Language (DML) is not to A. Create information table in the DatabaseB. Insertion of new information into the Database C. Deletion of information in the Database D. Modification of information in the Database 40. Which of the following in true regarding Referential Integrity? A. Every primary-key value must match a primary-key value in an associated table B. Every primary-key value must match a foreign-key value in an associated table C. Every foreign-key value must match a primary-key value in an associated tableD. Every foreign-key value must match a foreign-key value in an associated table 41. Which of the following option is use to retrieval of data? a. Stack b. Data Structure c. Linked list d. Query42. ODBC stands for ______ a. Offline database connection b. Oriented database connection c. Open database connectiond. None of above 43. Which algebra is widely used in DBMS? a. Relational algebrab. Arithmetic algebra c. Both d. None 44. Which of the following is an unary operation? a. Selection operationb. Generalized selection c. Primitive operation d. Projection operation 45. Which SQL Query is use to remove a table and all its data from the database? a. Create Table b. Alter Table c. Drop Tabled. None of these 46. In precedence of set operators the expression is evaluated from: a. Left to Left b. Left to Rightc. Right to Right d. Right to Left 47. In DBMS FD stands for _______ a. Facilitate data b. Functional data c. Facilitate dependency d. Functional dependency48. How many types of keys in Database Design? a. Candidate key b. Primary key c. Foreign key d. All of these49. Which of the following is based on Multi Valued Dependency? a. First b. Second c. Third d. Fourth50. Which of the following is the structure of the Database? a. Table b. Schemac. Relation d. None of these 51. The minimal set of super key is called A. Primary key B. Secondary key C. Candidate keyD. Foreign key 52. A relation that has no partial dependencies is in which normal form A. First B. SecondC. Third D. BCNF 53. A functional dependency between two or more non-key attributes is called A. Transitive dependencyB. Partial transitive dependency C. Functional dependency D. Partial functional dependency 54. A logical description of some portion of database that is required by a user to perform task is called as A. System View B. User ViewC. Logical View D. Data View 55. ______________ is a classical approach to database design? A. Left – Right approach B. Right – Left approach C. Top – Down approachD. Bottom – Up approach 56. _____________ refers to the correctness and completeness of the data in a database? A. Data security B. Data integrityC. Data constraint D. Data independence 57. A table that displays data redundancies yields ____________ anomalies A. Insertion B. Deletion C. Update D. All of the above58. A lock that allows concurrent transactions to access different rows of the same table is known as a A. Field-level lockB. Row-level lock C. Table-level lock D. Database-level lock 59. A type of query that is placed within a WHERE or HAVING clause of another query is called A. Super query B. Sub queryC. Master query D. Multi-query 60. A transaction completes its execution is said to be A. Saved B. Loaded C. Rolled D. Committed