1. DBMS is a collection of ………….. that enables users to create and maintain a database.
A) Keys
B) Translators
C) Program
D) Language Activity
2. In a relational schema, each tuple is divided into fields called
A) Relations
B) Domains
C) Queries
D) All of the above
3. In an ER model, ……………. is described in the database by storing its data.
A) Entity
B) Attribute
C) Relationship
D) Notation
4. DFD stands for
A) Data Flow Document
B) Data File Diagram
C) Data Flow Diagram
D) Non of the above
5. A top-to-bottom relationship among the items in a database is established by a
A) Hierarchical schema
B) Network schema
C) Relational Schema
D) All of the above
6. ……………… table store information about the database or about the system.
A) SQL
B) Nested
C) System
D) None of these
7. …………..defines the structure of a relation that consists of a fixed set of attribute-domain pairs.
A) Instance
B) Schema
C) Program
D) Super Key
8. ……………… clause is an additional filter that is applied to the result.
A) Select
B) Group-by
C) Having
D) Order by
9. A logical schema
A) is the entire database
B) is a standard way of organizing information into accessible parts.
C) Describes how data is actually stored on disk.
D) All of the above
10. ………………… is a full form of SQL.
A) Standard query language
B) Sequential query language
C) Structured query language
D) Server-side query language
11) A relational database developer refers to a record as
A. a criteria
B. a relation
C. a tuple
D. an attribute
12) ………. keyword is used to find the number of values in a column.
A. TOTAL
B. COUNT
C. ADD
D. SUM
13) An advantage of the database management approach is
A. data is dependent on programs
B. data redundancy increases
C. data is integrated and can be accessed by multiple programs
D. none of the above
14) The collection of information stored in a database at a particular moment is called as ……
A. schema
B. instance of the database
C. data domain
D. independence
15) Data independence means
A. data is defined separately and not included in programs.
B. programs are not dependent on the physical attributes of data
C. programs are not dependent on the logical attributes of data
D. both B and C
16) A ……… is used to define the overall design of the database
A. schema
B. application program
C. data definition language
D. code
17) Key to represent the relationship between tables is called
A. primary key
B. secondary key
C. foreign key
D. none of the above
18) Grant and revoke are ……. statements.
A. DDL
B. TCL
C. DCL
D. DML
19) DBMS helps achieve
A. Data independence
B. Centralized control of data
C. Neither A nor B
D. Both A and B
20) ………. command can be used to modify a column in a table
A. alter
B. update
C. set
D. create
Answers:
1. C) Program
2. B) Domains
3. A) Entity
4. C) Data Flow Diagram
5. A) Hierarchical schema
6. C) System
7. B) Schema
8. C) Having
9. B) is a standard .. accessible part.
10. C) Structured query language
11) C. a tuple
12) B. COUNT
13) C. data is integrated and can be accessed by multiple programs
14) B. instance of the database
15) D. both B and C
16) A. schema
17) C. foreign key
18) C. DCL
19) D. Both A and B
20) A. alter
Read Next: Solved MCQ on Database Management System (DBMS) Set – 2
2 Comments
sir , the answer to the Q..no. 17 is Primary key in most other site, explain
We can set the primary key even there is no relationship created between the tables in the database but the foreign key is the same property of another table that is set as primary key and it will be presented on the table only if the relationship is created between the tables.