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MCQ Questions on DBMS with Answer set-6

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MCQ Questions on DBMS with Answer
This set of MCQ questions on DBMS includes the collection of objective questions on the fundamentals of the database management system. It includes the MCQ questions on SQL commands, database server functions, and utilities of DBMS.

1. …………… joins are SQL server default
A) Outer
B) Inner
C) Equi
D) None of the above

2. The ………………… is essentially used to search for patterns in the target string.
A) Like Predicate
B) Null Predicate
C) In Predicate
D) Out Predicate

3. Which of the following is/are the Database server functions?
i) Data management            ii) Transaction management
iii) Compile queries            iv) Query optimization

A) i, ii, and iv only
B) i, ii and iii onl
C) ii, iii and iv only
D) All i, ii, iii, and iv

4. To delete a database ………………. command is used
A) delete database database_name
B) Delete database_name
C) drop database database_name
D) drop database_name

5. ………….. is a combination of two of more attributes used as a primary key
A) Composite Key
B) Alternate Key
C) Candidate Key
D) Foreign Key

Read Also: MCQ on Fundamental of Database Management System (DBMS)

6. Which of the following is not the function of the client?
A) Compile queries
B) Query optimization
C) Receive queries
D) Result formatting and presentation

7. …………. is a special type of stored procedure that is automatically invoked whenever the data in the table is modified.
A) Procedure
B) Trigger
C) Curser
D) None of the above

8. …………….. requires that data should be made available to only authorized users.
A) Data integrity
B) Privacy
C) Security
D) None of the above

9. Some of the utilities of DBMS are ………….
i) Loading          ii) Backup               iii) File organization          iv) Process organization

A) i, ii, and iv only
B) i, ii and iii only
C) ii, iii and iv only
D) All i, ii, iii, and iv

10. …………….. allows individual row operation to be performed on a given result set or on the generated by a selected statement.
A) Procedure
B) Trigger
C) Curser
D) None of the above

We have created a quiz including MCQ Questions on DBMS. Please take this quiz to test your knowledge on DBMS fundamentals.

Quiz for Fundamentals of DBMS

 

1. Which character function can be used to return a specified portion of a character string?
2. In a snapshot, which clause tells Oracle how long to wait between refreshes?
3. A table can have only one
4. Grant and revoke are which of the following statements?
5. Which of the following operators is basically a join followed by a project on the attributes of the first relation?
6. Which of the following components is NOT included in the database environment?
7. Which of the following has to be dealt with by the integrity subsystem is to ensure that only valid values can be assigned to each data item?
8. DCL stands for
9. Which of the following are used during the operation of the DBMS?
10. Which of the following is a condition specified on a database schema and restricts the data that can be stored in an instance of the database?
11. Which database is used as a template for all databases created?
12. In a relational model, relations are also called
13. Which of the following is critical in formulating database design?
14. Which of the following clauses is used to pass on granted privileges to other users?
15. In the relational modes, cardinality is also called
16. Which statement is executed automatically by the system?
17. Data items grouped together for storage purposes is called a
18. What represents the number of entities to which another entity can be associated?
19. Which contains information about a file needed by system programs for accessing file records?
20. Which command can be used to change a column value in a table?
21. A relational database developer refers to a record as
22. What is the number of tuples in a relation?
23. Which of the following databases contains data assisting day-to-day activities of the organization?
24. In SQL, which command is used to issue multiple CREATE TABLE, CREATE VIEW, and GRANT statements in a single transaction?
25. Which of the following entity does not have a distinguishing attribute if its own and most are dependent entities?
26. What is an advantage of the database management approach?
27. Which of the following keys is used to eliminate duplicate rows?
28. What is the collection of information stored in a database at a particular moment?
29. DBMS helps to achieve
30. Which of the following commands can be used to modify a column in a table?
31. Which of the following is a preferred method for enforcing data integrity?
32. What is the way a particular application views the data from the database that the application uses?
33. What language requires a user to specify the data to be retrieved without specifying exactly how to get it?
34. Which of the following is not a characteristic of a relational database model?
35. Which of the following is the preferred method for enforcing data integrity?
36. Which of the following provides an option for entering SQL queries as execution time, rather than at the development stage?
37. What is the process of organizing data into related tables?
38. Which of the following is not a logical database structure?
39. In SQL, the CREATE TABLESPACE is used
40. Which keyword is used to find the number of values in a column?
41. Who proposed the process of normalization in DBMS at first?
42. Which of the following databases has only a strict parent-child relationship?
43. In a relational schema, each tuple is divided into fields called
44. A top-to-bottom relationship among the items in a database is established by a
45. Which of the following are the properties of entities?
46. Which key is a minimal superkey that can also refer to a surrogate key?
47. Which of the following is the complex search criteria in the where clause?
48. Which of the following SQL commands can be used to modify existing data in a database table?
49. Which data type can store unstructured data?
50. If a table has more than one set of attributes that could be chosen as the key, it is called
51. What defines the structure of a relation that consists of a fixed set of attribute-domain pairs?
52. What is a special type of integrity constraint that relates two relations & maintains consistency across the relations?
53. Data independence means
54. Which candidate key allows you to uniquely identify each row?
55. DFD stands for
56. What are the different events in Triggers?
57. Which of the following defines rules regarding the values allowed in columns and is the standard mechanism for enforcing database integrity?
58. Which of the following contains information that defines valid values that are stored in a column or data type?
59. What is a logical schema?
60. Which of the following clauses specifies a search condition for a group or an aggregate?
61. Which one of the following statements is false?
62. What is the view of total database content?
63. What is the feature of the relational model?
64. Which of the following files are used during the operation of the DBMS?
65. What operator tests the column for the absence of data?
66. Which of the following are the ways in which entities can participate in a relationship?
67. Which database level is closest to the users?
68. Which of the following is/are the DDL statements?
69. Which command is used for entering the specific database?
70. What is the full form of HSAM?
71. What is a full form of SQL?
72. Which of the following is a utility to capture a continuous record of server activity and provide auditing capability?
73. Which clause is an additional filter that is applied to the result?
74. Which of the following is a way a particular application views the data from the database that the application uses?
75. Which is a proper subset designed to support views belonging to different classes of users in order to hide or protect information?
76. What is a set of possible data values?
77. What will be created if a primary key is combined with a foreign key?
78. The database schema is written in which of the following languages?
79. Which of the following is used to define the overall design of the database?
80. What is the full form of DDL in Database Management System?
81. Which table store information about the database or about the system?
82. Which of the following is TRUE for the system variable "date"?
83. In an ER model, which is described in the database by storing its data.
84. The key to represent the relationship between tables is called
85. Which normal form is considered adequate for relational database design?
86. Which of the following enables users to create and maintain a database?
87. Which of the following is not a binary operator in relational algebra?
88. What is a set of columns that identifies every row in a table?
89. Which of the following is used to determine whether a table contains duplicate rows?
90. Which of the following is an outstanding functionality of SQL that supports automatic selection of the target data?

 

Answers:

1. B) Inner
2. A) Like Predicate
3. A) i, ii, and iv only
4. C) drop ….database_name
5. A) Composite Key
6. B) Query optimization
7. B) Trigger
8. C) Security
9. B) i, ii and iii only
10. C) Curser

Read Next: Solved MCQ of Database Management System (DBMS) Set–7

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