Multiple Choice Questions
Introduction To Database Systems
Set 1
1) DBMS stands for what
- Database Management System
- Database Master System
- Database Management Structure
- None of the above
2) Database is an organized collection of related………
- Data
- Modules
- Programs
- None of the above
3) Before use of DBMS information was stored using __________.
- Cloud Storage
- Data System
- File Management System
- None of the above
4) Keys involved in relationship between tables is called
- Primary key
- Secondary key
- Foreign key
- A and B
5) The DBMS is the software that interacts with the ……………….and thedatabase.
- User’s application programs
- User’s system programs
- User’s system database
- None of the above
6) DDL stands for what
- Database Definition Level
- Data Definition Language
- Data Device Latency
- None of the above
7) DBMS helps achieve
- Data independence
- Centralized control of data
- Both A and B
- None of the above
8) An advantage of the database management approach is
- Data is dependent on programs
- Data redundancy increases
- Data is integrated and can be accessed by multiple programs
- None of the above
9) Before The database schema is written in
- HLL
- DML
- File DDL
- None of the above
10) Which two files are used during operation of the DBMS
- Query languages and utilities
- DML and query language
- Data dictionary and transaction log
- None of the above
Select which is not an object-based logical model
A The infological model
B The entity-relational model
C The binary model
D None of these
E all of the above
Answer: A
Which design is both software and hardware independent
A Conceptual
B Physical
C Logical
D both a and b
E none of these
Answer:A
The Object based data models are used to define the abstraction __________ level :
A Only physical
B Physical and conceptual
C both a and b
D Conceptual and view
E None of the above
Answer: D
A schema is
A Record Relationship
B Data Elements
C Record and files
D Both a and b
E All of the above
Answer: E
An abstraction concept for building composite object from their component object known as
A Aggregation
B Normalization
C Generalization
D Specialization
Answer: A
The DBMS is used for what
A Eliminate data redundancy
B Maintain data integrity
C Establish relationships among different files
D both A and B
E All of the above
Which type of information is used by the top level managers
A Operational information
B Strategic information
C Both [A] and [B]
D Technical information
E All of the above
Answer: B
Identify the package not belong DBMS
A Ingress
B Unify
C IDMS
D All are DBMS packages
Answer: D
A collection of objects that use common structure and a common behavior is known as
A Object
B Entity
C Class
D both a and b
E All of the above
Answer: C
The data dictionary tells_________to the DBMS :
A What files are in the database
B What these files contain
C What attributes are possessed by the datav
D All of the above
E none of the above
Answer: D
An relationship among students and courses is
A M:M relationship
B 1:M relationship
C 1:1 relationship
D None of these
Answer: A
The Database has all of themention below components except
A users
B database administrator
C database
D separate files
E none of the above
Answer: D
The key used for cost-effective data input is
A employee motivation
B validity checks
C validation
D OCR equipment
E All of the above
Answer:A
Complex entities can be formed by the following operation :
A SUM
B Union
C Collection
D Aggregation
E Both A and C
Answer: D
Which is belong to metadata :
A Data dictionary
B Table
C E-R diagram
D View of a database
E none of the above
Answer: A
Periodically adding, changing and deleting file records is known as
A Renewing
B Upgrading
C Restructuring
D Updating
E both a and b
Answer: Option D
The Primitive operations usuallu to all record management systems is
A Look-up
B Sort
C Print
D All of the above
E none of these
Answer : A
Administrative supervision of database are the responsibility _______________?
A DP Administrator
B DP Manager
C DB Manager
D Database administrator
E none of these
Answer : D
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