dbms.
16
[1] Which of the following represents the collection of interrelated data and a set of programmes to access those data ? Choice a Database Choice b Database Management system Choice c Records Choice d None of the above [2] The level of data abstraction which describes how the data is actually stored is …….. Choice a Conceptual Level Choice b Physical Level Choice c File Level Choice d None of the above [3] ……………….. Ia s collection of conceptual tools for describing data,their relationships,semantics and consistency constraints Choice a Data Model
-
Upload
prerak-dedhia -
Category
Documents
-
view
11 -
download
0
description
ycmou mcq
Transcript of dbms.
[1] Which of the following represents the collection of interrelated data and a set of programmes to access those data ?
Choice a
Database
Choice b
Database Management system
Choice c
Records
Choice d
None of the above
[2] The level of data abstraction which describes how the data is actually stored is ……..
Choice a
Conceptual Level
Choice b
Physical Level
Choice c
File Level
Choice d
None of the above[3] ……………….. Ia s collection of conceptual tools for describing data,their relationships,semantics and consistency constraints
Choice a
Data Model
Choice b ===
Data
Choice c
Data Consistency
Choice d
None of the above
[4] The Language that enables the user to access or manipulate data is called
Choice a
Data Defination Language
Choice b
Data Manipulation Language
Choice c
Data Description Language
Choice d
System Language
[5] …………… is responsible for recovery from hardware or software failures
Choice a
Recovery Management
Choice b
Transaction Management
Choice c
Security Management
Choice d
None of the above
6 Is to ensure that current transactions operate correctly without any loss of database consistency
[7] ………. Is responsible for protecting the data against unauthorised access
Choice a
Concurrency Control
Choice b
Storage Management
Choice c
Transaction Management
Choice d
Security Management
[8] …………. Is the ability to change the conceptual schema without altering the external scheme or application programs
Choice a
Physical data Independence
Choice b
Logical Data Independence
Choice c
Both 1&2
Choice d
None of the above
[9] …………...is a system database that contains MetaData
Choice a
File
Choice b
Catalog
Choice c
Disks
Choice d
Tapes
[10] Which of the following are characteristics of a database management system?
Choice a
Allows the sharing of data between multiple users
Choice b
Stores the description of the data as well as the data
Choice c
Supports multiple views of the data
Choice d
All of the above
[11] ………… implies that information should represent the real world system correctly
Choice a
Correctness
Choice b
Realistic Representation
Choice c
Completeness
Choice d
Consistency
[12] The information stored in the catalog file is called
Choice a
Data
Choice b
System Data
Choice c
MetaData
Choice d
Catalog Data
[13] …………. Is the ability to change the internal schema without altering the conceptual schemes
Choice a
Physical data Independence
Choice b
Logical Data Independence
Choice c
Both 1&2
Choice d
None of the above
[14] ……… enables us to represent the real world entities in a form that can be processed by the computer
Choice a
Database Administrator
Choice b
Database Design
Choice c
Database Management
Choice d
All of the above
[15] ……...implies the correctness and accuracy of data stored in the database
Choice a
Integrity
Choice b
Redundancy
Choice c
Extensibility
Choice d
None of the above
16] Collection of interrelated data and a set of programs to access those data is
Choice a
Database
Choice b
Database Management System
Choice c
Records
Choice d
None of the above
[17] Data that is processed and is relevant
Choice a
Database
Choice b
Information
Choice c
Data
Choice d
Knowledge
[18] ……… is a progarm that provides the interface between the data stored in the database and the application programs and queries given to the system
Choice a
Security Manager
Choice b
Storage Manager
Choice c
Transaction Manager
Choice d
None of the above
[19] ………...is a sequence of operations that transforms the database from one state to the other
Choice a
Transposition
Choice b
Transaction
Choice c
System operation
Choice d
All of the above
[20] DBMS is a general purpose software system that facilitates the process of
Choice a
Defining database
Choice b
Constructing database
Choice c
Manipulating database
Choice d
All of the above
[21] DBA stands for……..
Choice a
Data Bank Access
Choice b
Database Access
Choice c
Data Bank Administration
Choice d
Database Administrator
[22] ….. demarcates the physical aspects of data storage from the logical aspects of data representation
Choice a
Schema
Choice b
Data
Choice c
Relationship
Choice d
Catalog
[24] Mapping of association between data elements is called
Choice a
Relationship
Choice b
Constraints
Choice c
Schema
Choice d
Integrity[25] ………….. Implies that the representation of the entity must be realistic
Choice a
Correctness
Choice b
Realistic Representation
Choice c
Completeness
Choice d
Consistency
[26] …………. Is the individual user level which presents diverse views of the apllication to the different users
Choice a
Physical Level
Choice b
Logical Level
Choice c
External Level
Choice d
All of the above
[27] is useful to the users as it defines views of the database for individual users
Choice a
Internal Schema
Choice b
Conceptual Schema
Choice c
External Schema
Choice d
All of the above
[28] conceals the details of physical storage structures and stresses on describing data
Choice a
Internal Schema
Choice b
Conceptual Schema
Choice c
External Schema
Choice d
All of the above
[29] ……….. aims at identifying the major entities in an application and modelling them in a target databsae schema model
Choice a
Information Modelling
Choice b
Data Modelling
Choice c
Database Management
Choice d
None of the above
[30] …………...transaction can be used to make changes permanent in the database
Choice a
Permanent Transaction
Choice b
RollBack Transaction
Choice c
Commit Transaction
Choice d
None of the above
