Monday, July 4, 2011

DATABASE MANAGEMENT SYSTEMS

DATABASE MANAGEMENT SYSTEMS

Multiple Choice Multiple Answer
 Question Following date formats used in oracle
Correct Answer TO_CHAR() , TO_DATE()
Your Answer TO_DATE()

Select The Blank
 Question ________means data is protected from deletion and corruption, both while it resides within database
Correct Answer Data integrity
Your Answer Data integrity

Multiple Choice Multiple Answer
 Question To be able to successfully design and maintain databases we have to do following
Correct Answer Identify relationship between objects , Identify worlds data is of interest to us ,
Data dictionary
Your Answer Identify relationship between objects , Data dictionary

True/False
 Question The data in the database cannot be shared
Correct Answer False
Your Answer False

Multiple Choice Single Answer
 Question What is many-to-one relationship between two sets of attributes of a given relation
Correct Answer
Functional dependency
Your Answer Functional dependency

Multiple Choice Single Answer
 Question When an attribute composed of multiple components, each with an independent existence is called as
Correct Answer composite attribute
Your Answer composite attribute

Multiple Choice Single Answer
 Question Which of the following term means the ability to represent a model using esily understood diagrammatic notation
Correct Answer Diagrammatic representation
Your Answer Diagrammatic representation

True/False
 Question physical design is tailored to a specific DBMS system
Correct Answer True
Your Answer True

Match The Following
 Question Correct Answer Your Answer

Person responsible for running and maintenance of Hardware and Software in a Database Operators and maintenance personal Operators and maintenance personal

Data files Stores the database itself Stores the database itself

Person who design and implement Database management system modules Database Management system designers and implementers Database Management system designers and implementers

Person who design and implement tools Tool developers Tool box developers


Multiple Choice Multiple Answer
 Question Which of the following are functions of DBA
Correct Answer Installing and upgrading the dbms , Enrolling users and maintaining security , contacting dbms vendor for technical support
Your Answer Installing and upgrading the dbms , Enrolling users and maintaining security , contacting dbms vendor for technical support

Multiple Choice Single Answer
 Question Which of the following term means the ability to represent a model using esily understood diagrammatic notation
Correct Answer Diagrammatic representation
Your Answer Diagrammatic representation

Multiple Choice Multiple Answer
 Question Specify any three string functions used in SQL
Correct Answer lower(char) , initcap(char) , upper(char)
Your Answer lower(char) , initcap(char) , upper(char)

Multiple Choice Single Answer
 Question One method of protecting the privacy and integrity of a system is to place a firewall between internet and
Correct Answer Public network
Your Answer intranet

True/False
 Question Availability is often thoutht of as continuity of service, ensuring that database is available 24 hours a day, 7 days a week
Correct Answer True
Your Answer True

Select The Blank
 Question The most widely used conceptual model is________
Correct Answer E-R model
Your Answer E-R model

True/False
 Question The SSL protocol developed by microsoft corporation, is an industry accepted standard for network transport layer security
Correct Answer False
Your Answer False

True/False
 Question The shadow page table is never changed over the duration of the transaction
Correct Answer True
Your Answer True

True/False
 Question The Database administrator cannot grant or revoke privileges to users.
Correct Answer False
Your Answer False

Multiple Choice Single Answer
 Question Write a command to grant all privileges on BOOK TABLE to user "Mathews"
Correct Answer GRANT ALL ON BOOK TO MATHEWS
Your Answer GRANT ALL ON BOOK TO MATHEWS

Multiple Choice Single Answer
 Question Write output of following example SELECT LOWER('JOHN') FROM DUAL;
Correct Answer john
Your Answer john

Select The Blank
 Question ________is the process by which the user's access to physical data in the application is limited, based on his privileges.
Correct Answer Access control
Your Answer Access control

Multiple Choice Single Answer
 Question Write SQL statement, which shows contents of table book, whose price is less than 4000 and more than 1000
Correct Answer select * from book where price>1000 and price<4000
Your Answer select * from book where price>1000 and price<4000

Multiple Choice Multiple Answer
 Question There are two kinds of tables -
Correct Answer base tables , views
Your Answer base tables , system

Match The Following
 Question Correct Answer Your Answer

Integrity hallmark of data security hallmark of data security

Authorisation permission given to user Provide authority

Previlege Permission for accessing objects permission given to user

Role Provide authority Permission for accessing objects

True/False
 Question To update city_name to bombay following command is used. UPDATE EMP_TABLE SET CITY='BOMBAY';
Correct Answer True
Your Answer True

Multiple Choice Multiple Answer
 Question Specify any 2 forms of insert command
Correct Answer INSERT INTO SELECT , FROM , INSERT INTO SELECT , FROM WHERE
Your Answer INSERT INTO SELECT , FROM , INSERT INTO SELECT , FROM WHERE

Multiple Choice Multiple Answer
 Question Following are properties of roles allowed for easier privilege management
Correct Answer Reduced privilege administration , Dynamic privilege administration , application awareness
Your Answer Dynamic privilege administration , Deletion of information

Multiple Choice Multiple Answer
 Question Strong entities are also called as
Correct Answer dominant , Parent , owner
Your Answer Parent

True/False
 Question A user can grant any object privilege on any object he or she owns to any other user or role
Correct Answer True
Your Answer True

Multiple Choice Multiple Answer
 Question Security considerations apply to
Correct Answer data, database , dbms , users and applications
Your Answer data, database , dbms , users and applications

Select The Blank
 Question ________regulates all user access to named objects through privileges
Correct Answer Discretionary access control
Your Answer Discretionary access control

True/False
 Question Distinct clause in select command eliminates rows that have exactly same contents in each column.
Correct Answer True
Your Answer True

Multiple Choice Single Answer
 Question Write output of following example SELECT SUBSTR('SECURE',3,4) FROM DUAL
Correct Answer CURE
Your Answer RE

True/False
 Question A relational model relates records by the value that they contain.
Correct Answer True
Your Answer False

Select The Blank
 Question In________there is no security of data
Correct Answer DBMS
Your Answer DBMS

Multiple Choice Multiple Answer
 Question A Database Management System has several subsystems
Correct Answer Transaction Manager Subsystem , Query Manager Subsystem , Storage Manager Subsystem
Your Answer Transaction Manager Subsystem , Data Manager Subsystem , Query Manager Subsystem

Select The Blank
 Question UML additionaly provide set of ________that can be invoked to compute values on the basis of attributes of the object
Correct Answer functions
Your Answer functions

Select The Blank
 Question In 1978 the________approved the SQL database language project which led to the formulation of the initial SQL standard language
Correct Answer ANSI American national std institute
Your Answer ANSI American national std institute

Multiple Choice Multiple Answer
 Question The different types of database users
Correct Answer Security officers , Database administrators , Network administrators
Your Answer Database administrators , Database operators

Select The Blank
 Question Each attribute is associted with set of values called as________
Correct Answer Domain
Your Answer Relation

Multiple Choice Single Answer
 Question Access to a database can be controlled using
Correct Answer Access Privilages
Your Answer Access control

Select The Blank
 Question Structctural validity in data modeling means ________
Correct Answer consistency
Your Answer consistency

Select The Blank
 Question ________ is tailored to specific DBMS system
Correct Answer Physical design
Your Answer Physical design

Multiple Choice Single Answer
 Question In an Entity relationship diagram total participation of an entity in a relationship set is indicated by :
Correct Answer Double line
Your Answer Double ellipse

Multiple Choice Multiple Answer
 Question The ICAM studies created lot of graphical methods for defining
Correct Answer Functions , Data structures
Your Answer Data structures

Select The Blank
 Question Enitity name is written in ________in E-R diagram
Correct Answer upper case
Your Answer upper case

Multiple Choice Single Answer
 Question Write the use of UPDATE command
Correct Answer To change or to modify data values in table
Your Answer To change or to modify data values in table

Select The Blank
 Question ________published the paper "Relational Model of Data for Large Shared Data Banks "
Correct Answer F.Codd
Your Answer F.Codd

Select The Blank
 Question Database design model helps in improving________
Correct Answer maintainability
Your Answer maintainability

Multiple Choice Multiple Answer
 Question SSL protocol provides
Correct Answer authorisation , data encryption , data integrity
Your Answer authorisation , data encryption , security

True/False
 Question To update city_name to bombay following command is used. UPDATE EMP_TABLE SET CITY='BOMBAY';
Correct Answer True
Your Answer False

Multiple Choice Single Answer
 Question Class room entity has single value for room_no attribute so room_no attriute is reffered to as
Correct Answer Single valued
Your Answer Single valued

Multiple Choice Single Answer
 Question Which type of attribute represents a value that is derivable from the value of related attribute
Correct Answer derived attribute
Your Answer derived attribute

Multiple Choice Multiple Answer
 Question Some clauses of Revoke command are as follows
Correct Answer FROM , ON
Your Answer FROM , ON , ANY

Select The Blank
 Question A________is a situation,event or Personnel that will adversely affect the database security and the smooth functioning of organization
Correct Answer Threat
Your Answer Threat

Multiple Choice Single Answer
 Question In an Entity relationship diagram, what is used to link attributes to entity sets and entity sets to relationships?
Correct Answer Line
Your Answer Line

Select The Blank
 Question ________are binary computer representations of stored logical entities
Correct Answer Data
Your Answer Data

Select The Blank
 Question Enitity name is written in ________in E-R diagram
Correct Answer upper case
Your Answer upper case

Multiple Choice Single Answer
 Question (%) stands for
Correct Answer Sequence of n characters in character string
Your Answer Sequence of n characters in character string

Select The Blank
 Question ________are collection of instructions for manipulating data
Correct Answer program
Your Answer program

Select The Blank
 Question ________means data is protected from deletion and corruption, both while it resides within database
Correct Answer Data integrity
Your Answer Data integrity

Match The Following
 Question Correct Answer Your Answer

Menu driven interface Stand alone user Stand alone user

Query language interface Casual user Casual user

Programming language interface Application user DBA

Forms and command code Parametric user Parametric user

Select The Blank
 Question In________there is no security of data
Correct Answer DBMS
Your Answer DML

Multiple Choice Multiple Answer
 Question Which of the following are valid SQL commands.
Correct Answer ALTER , UPDATE
Your Answer ALTER , UPDATE

Select The Blank
 Question ________is a process by which user's identity is checked
Correct Answer Authentication
Your Answer Authentication

Select The Blank
 Question Entities are represented in ________in E-R diagram
Correct Answer Rectangular box
Your Answer square box

Select The Blank
 Question File is collection of ________
Correct Answer records
Your Answer Data

Multiple Choice Single Answer
 Question WWW stands for
Correct Answer World wide web
Your Answer World wide web

Select The Blank
 Question The most widely used conceptual model is________
Correct Answer E-R model
Your Answer E-R model

Select The Blank
 Question ________provides a graphical means of modeling various components of software system
Correct Answer UML
Your Answer ERD

True/False
 Question SQL is low level language
Correct Answer False
Your Answer False

Multiple Choice Single Answer
 Question What operation is used to protect data from corruption and deletion .
Correct Answer Data integrity
Your Answer Data integrity

True/False
 Question Centralised Database Management cannot support multiple users.
Correct Answer False
Your Answer False

Multiple Choice Multiple Answer
 Question What can be used to manage databases data integrity rule
Correct Answer Integrity constraints , Database triggers
Your Answer security , Integrity constraints , Database triggers

True/False
 Question Unary operator operates only on one operand.
Correct Answer True
Your Answer True

Multiple Choice Multiple Answer
 Question In a two tier architecture, the software components are distributed over which two systems
Correct Answer Client , Server
Your Answer Client , Server

True/False
 Question Temporal constraints can be used to limit the value of a particular attribute to be in a range
Correct Answer False
Your Answer True

Multiple Choice Multiple Answer
 Question Write the attributes of entity "book"
Correct Answer book_no , Book_name , Price
Your Answer book_no , Book_name , Price

Multiple Choice Multiple Answer
 Question Set operators are as follows
Correct Answer MINUS , UNION , INTERSECT
Your Answer UNION , INTERSECT , MINUS

Multiple Choice Multiple Answer
 Question Three levels of database service
Correct Answer External level , Conceptual level , Physical level
Your Answer External level , Conceptual level , Internal level

Match The Following
 Question Correct Answer Your Answer

Data model must know entities,relation,attributes database characteristics

shareability optimal data model's characteristics used in physical modeling

E-R model widely used conceptual model widely used conceptual model

Database design conversion into computer usable form must know entities,relation,attributes

True/False
 Question Codd developed E-R model
Correct Answer False
Your Answer False

Select The Blank
 Question ________means data is protected from deletion and corruption, both while it resides within database
Correct Answer Data integrity
Your Answer Data integrity

Multiple Choice Single Answer
 Question Write output of following example SELECT LOWER('JOHN') FROM DUAL;
Correct Answer john
Your Answer john

Multiple Choice Multiple Answer
 Question The levels of abstraction of data are
Correct Answer Physical level , Logical level , View level
Your Answer Physical level , Logical level

Multiple Choice Single Answer
 Question What operation is used to protect data from corruption and deletion .
Correct Answer Data integrity
Your Answer Data integrity

Select The Blank
 Question ________is the process by which the user's access to physical data in the application is limited, based on his privileges.
Correct Answer Access control
Your Answer Access control

Multiple Choice Single Answer
 Question An example of non-volatile storage is :
Correct Answer Magnetic Tapes
Your Answer Magnetic Tapes

Multiple Choice Single Answer
 Question Security issues become more complex in which environment
Correct Answer Network
Your Answer Network

Multiple Choice Multiple Answer
 Question Functions at the server end are
Correct Answer Query , Transaction
Your Answer Query , Transaction , Application Program

True/False
 Question In Database management system, protection includes against hardware and Software malfunctions and not against unauthorized access.
Correct Answer False
Your Answer False
 Question Attributes are classified as
Correct Answer Simple , Composite , Multivalued
Your Answer Simple , Composite , Multivalued

Multiple Choice Single Answer
 Question What is UML models(E-R models entities)
Correct Answer Objects
Your Answer Objects

Multiple Choice Single Answer
 Question Write command "to grant update authority on price column of catalogue to user "Smita"
Correct Answer GRANT UPDATE(PRICE) ON CATALOGUE TO SMITA
Your Answer GRANT UPDATE(PRICE) ON CATALOGUE TO SMITA

True/False
 Question In Database management system, protection includes against hardware and Software malfunctions and not against unauthorized access.
Correct Answer False
Your Answer False

Multiple Choice Multiple Answer
 Question The functions of Database adminstrator are
Correct Answer Authorization for data access , Schema definition , Maintenance of Database
Your Answer Authorization for data access , Maintenance of Database

Multiple Choice Single Answer
 Question What expresses the specific number of entity occurances associated with one occurance of related entity?
Correct Answer Cardinality
Your Answer Cardinality

Multiple Choice Multiple Answer
 Question Write examples of dbms
Correct Answer Foxbase , foxpro
Your Answer Foxbase , foxpro

Select The Blank
 Question ________is a process by which the user's privileges are ascertained
Correct Answer Authorisation
Your Answer Authorisation

Multiple Choice Single Answer
 Question What operation is used to protect data from corruption and deletion .
Correct Answer Data integrity
Your Answer Data integrity

Multiple Choice Multiple Answer
 Question What can be used to manage databases data integrity rule
Correct Answer Integrity constraints , Database triggers
Your Answer Integrity constraints , Database triggers

Multiple Choice Single Answer
 Question The set of all entities of the same type called as
Correct Answer entity set
Your Answer entity set

Select The Blank
 Question Enitity name is written in ________in E-R diagram
Correct Answer upper case
Your Answer upper case

Select The Blank
 Question The first commercial RDBMS was ________from Relational Software Inc.
Correct Answer ORACLE
Your Answer ORACLE

Select The Blank
 Question UML additionaly provide set of ________that can be invoked to compute values on the basis of attributes of the object
Correct Answer functions
Your Answer functions

True/False
 Question You cannot grant or revoke system privileges to users and roles.
Correct Answer False
Your Answer True

Multiple Choice Single Answer
 Question Write SQL statement, which will show contents of table book, where 2nd character of bookname is 'm'
Correct Answer select * from book where bookname like '_m%'
Your Answer select * from book where bookname like '_m%'

Select The Blank
 Question In________there is no security of data
Correct Answer DBMS
Your Answer DBMS

Select The Blank
 Question File is collection of ________
Correct Answer records
Your Answer records

Multiple Choice Single Answer
 Question The set of all relationships of the same type called as
Correct Answer Relationship set
Your Answer Relationship set

Select The Blank
 Question ________are collection of instructions for manipulating data
Correct Answer program
Your Answer program

Multiple Choice Multiple Answer
 Question Which of the following are valid SQL commands.
Correct Answer ALTER , UPDATE
Your Answer ALTER , UPDATE

Multiple Choice Single Answer
 Question DDL stands for
Correct Answer Data definition language
Your Answer Data definition language

Multiple Choice Single Answer
 Question A person who has control over system is called as
Correct Answer Database administrator
Your Answer Database administrator

Multiple Choice Multiple Answer
 Question What are secured using authorisation and access control.
Correct Answer The intranet , local clients , opearators
Your Answer The intranet , local clients , opearators

Multiple Choice Single Answer
 Question What is nothing but refined data
Correct Answer Information
Your Answer Information

True/False
 Question A database may include varieties of data that are interrelated in many ways.
Correct Answer True
Your Answer True

Multiple Choice Multiple Answer
 Question Which of the following are functions of DBA
Correct Answer Installing and upgrading the dbms , Enrolling users and maintaining security , contacting dbms vendor for technical support
Your Answer Installing and upgrading the dbms , Enrolling users and maintaining security , contacting dbms vendor for technical support

Select The Blank
 Question SQL as a language is________of the way it is implemented internally.
Correct Answer independent
Your Answer independent

Multiple Choice Multiple Answer
 Question Attributes are classified as
Correct Answer Simple , Composite , Multivalued
Your Answer Simple , Composite , Multivalued

Match The Following
 Question Correct Answer Your Answer

select * from
order by
Views all columns in sorting ording by specified column_name Views all columns in sorting ording by specified column_name

Select * from View all data from table. View all data from table.

select , from

Views 2 specified column from table Views 2 specified column from table

select * from where Views all column satisfying condition in where clause Views all column satisfying condition in where clause

Select The Blank
 Question Each attribute is associted with set of values called as________
Correct Answer Domain
Your Answer Domain

Multiple Choice Multiple Answer
 Question Specify any three string functions used in SQL
Correct Answer lower(char) , initcap(char) , upper(char)
Your Answer lower(char) , initcap(char) , upper(char)

Multiple Choice Single Answer
 Question To enter new field city in the table 'branch_master' following command is used
Correct Answer alter table branch_master add(city varchar2(25))
Your Answer alter table branch_master add(city varchar2(25))

Multiple Choice Single Answer
 Question Malfunctioning of the hardware, or bug in the database software or operating system is called as
Correct Answer System Crash
Your Answer System Crash

Select The Blank
 Question ________are binary computer representations of stored logical entities
Correct Answer Data
Your Answer Data

Multiple Choice Multiple Answer
 Question Advantages of Database Management System
Correct Answer Reduced redundancy , Sharing of data , Security
Your Answer Reduced redundancy , Sharing of data , Work Space required for execution and storage is less

Multiple Choice Single Answer
 Question When two entities are associated then the relationship exists is called :
Correct Answer binary relationship
Your Answer binary relationship

True/False
 Question The SSL protocol developed by microsoft corporation, is an industry accepted standard for network transport layer security
Correct Answer False
Your Answer True

Multiple Choice Single Answer
 Question Grant the SELECT authority on catalog table to user "Reema" with capability to grant those privileges to other users on catalog table
Correct Answer GRANT SELECT ON CATALOG TO REEMA WITH GRANT OPTION
Your Answer GRANT SELECT ON CATALOG TO REEMA WITH GRANT OPTION

Select The Blank
 Question ________published the paper "Relational Model of Data for Large Shared Data Banks "
Correct Answer F.Codd
Your Answer F.Codd

Select The Blank
 Question Entities are represented in ________in E-R diagram
Correct Answer Rectangular box
Your Answer Rectangular box

Select The Blank
 Question ________means data is protected from deletion and corruption, both while it resides within database
Correct Answer Data integrity
Your Answer Data integrity

Match The Following
 Question Correct Answer Your Answer

Data files Stores the database itself Stores the database itself

Person who design and implement Database management system modules Database Management system designers and implementers Database Management system designers and implementers

Person who design and implement tools Tool developers Tool developers

Person responsible for running and maintenance of Hardware and Software in a Database Operators and maintenance personal Operators and maintenance personal

True/False
 Question Encryption alone is sufficient to secure the data.
Correct Answer False
Your Answer False

Multiple Choice Single Answer
 Question Write command "to grant update authority on price column of catalogue to user "Smita"
Correct Answer GRANT UPDATE(PRICE) ON CATALOGUE TO SMITA
Your Answer GRANT UPDATE(PRICE) ON CATALOGUE TO SMITA

Select The Blank
 Question ________provides a graphical means of modeling various components of software system
Correct Answer UML
Your Answer UML

Select The Blank
 Question ________regulates all user access to named objects through privileges
Correct Answer Discretionary access control
Your Answer Discretionary access control

Multiple Choice Single Answer
 Question What is many-to-one relationship between two sets of attributes of a given relation
Correct Answer Functional dependency
Your Answer Functional dependency

True/False
 Question physical design is tailored to a specific DBMS system
Correct Answer True
Your Answer False

True/False
 Question A relational model relates records by the value that they contain.
Correct Answer True
Your Answer True


Multiple Choice Multiple Answer

Database Management System - 2

LIST OF ATTEMPTED QUESTIONS AND ANSWERS



True/False
 Question
Encryption alone is sufficient to secure the data.
Correct Answer
False
Your Answer
False

Multiple Choice Single Answer
 Question
Which attribute holds multiple values for single entity?
Correct Answer
Multi valued attribute
Your Answer
Multi valued attribute

Select The Blank
 Question
________ is one closest to the users.
Correct Answer
Logical level
Your Answer
Physical level

True/False
 Question
All views are not updatable.
Correct Answer
True
Your Answer
False

Multiple Choice Single Answer
 Question
(%) stands for :-
Correct Answer
Sequence of n characters in character string
Your Answer
Sequence of n characters in character string

True/False
 Question
Logical 'OR' operator returns true if both component conditions are true otherwise returns false
Correct Answer
False
Your Answer
False

True/False
 Question
Structural constraints are specified to force the placement of information into structures.
Correct Answer
True
Your Answer
True

Multiple Choice Single Answer
 Question
Immediate database modification uses :-
Correct Answer
Old Value & New Value
Your Answer
Only New Value

True/False
 Question
Distinct clause in select command eliminates rows that have exactly same contents in each column.
Correct Answer
True
Your Answer
True

Select The Blank
 Question
________ is there when a user application program can operate on the data, regardless of how the operations are implemented.
Correct Answer
Program operation independence
Your Answer
Program operation independence

Multiple Choice Multiple Answer
 Question
Attributes are classified as :-
Correct Answer
Simple , Composite , Multivalued
Your Answer
Simple , Composite , Multivalued , Variant

Multiple Choice Single Answer
 Question
Security issues become more complex in which environment?
Correct Answer
Network
Your Answer
Network

Multiple Choice Multiple Answer
 Question
Set operators are as follows :-
Correct Answer
UNION , INTERSECT , MINUS
Your Answer
UNION , INTERSECT , MINUS

Multiple Choice Single Answer
 Question
What will you get when Data items are grouped together?
Correct Answer
Entity
Your Answer
Data

Multiple Choice Multiple Answer
 Question
The ICAM studies created lot of graphical methods for defining :-
Correct Answer
Functions , Data structures
Your Answer
Functions , Combinations , Data structures , Conditions

True/False
 Question
The information collected during requirement analysis forms input for information modeling.
Correct Answer
True
Your Answer
True

Multiple Choice Multiple Answer
 Question
Security considerations apply to :-
Correct Answer
Data, database , DBMS , Users and applications
Your Answer
Users and applications , Variant , Data, database , DBMS

Multiple Choice Multiple Answer
 Question
Specify any three string functions used in SQL :-
Correct Answer
initcap(char) , upper(char) , lower(char)
Your Answer
lower(char) , initcap(char) , upper(char) , stringlength(char)

Match The Following
Question
Correct Answer
Your Answer
select * from
order by

Views all columns in sorting ording by specified column_name
Views all columns in reverse order

Select * from
View all data from table.
Views all column satisfying condition in where clause

select , from


Views 2 specified column from table
Updates records which satisfy condition

select * from where
Views all column satisfying condition in where clause
Views all columns in sorting ording by specified column_name

Multiple Choice Multiple Answer
 Question
Write the attributes of entity "book" :-
Correct Answer
Book_no , Book_name , Price
Your Answer
Book , Book_no , Book_name , Price

Select The Blank
 Question
Database design model helps in improving________.
Correct Answer
Maintainability
Your Answer
Maintainability

Select The Blank
 Question
The program which allows multiple users and programs to access the database concurrently is called ________ a database.
Correct Answer
Sharing
Your Answer
Sharing

Multiple Choice Single Answer
 Question
If a data transfer failure is detected the system involves :-
Correct Answer
Recovery procedure
Your Answer
Check points

Multiple Choice Multiple Answer
 Question
To be able to successfully design and maintain databases we have to do following :-
Correct Answer
Identify relationship between objects , Identify worlds data is of interest to us , Data dictionary
Your Answer
Hardware manipulations , Identify relationship between objects , Identify worlds data is of interest to us , Data dictionary

True/False
 Question
Wait-die scheme is based on preemptive technique.
Correct Answer
False
Your Answer
True

Multiple Choice Single Answer
 Question
Backbone of any organization is :-
Correct Answer
Information
Your Answer
Information

Select The Blank
 Question
A ________ is a database that can maintain information such as video, images, sounds in traditional form.
Correct Answer
Universal server
Your Answer
Server

Select The Blank
 Question
An alternative technique to log based crash recovery is ________.
Correct Answer
Shadow Paging
Your Answer
Backup Mechanism

Select The Blank
 Question
File is collection of ________.
Correct Answer
Records
Your Answer
Records

Multiple Choice Multiple Answer
 Question
Some clauses of Revoke command are as follows :-
Correct Answer
FROM , ON
Your Answer
FROM , ON , ANY , MANY

Multiple Choice Single Answer
 Question
Class room entity has single value for room_no attribute so room_no attribute is referred to as :-
Correct Answer
Single valued
Your Answer
Single valued

Multiple Choice Multiple Answer
 Question
Different E-R modeling styles are :-
Correct Answer
Rein 85 , IDEFIX , Crow's foot
Your Answer
Crow's foot , Rein 85 , IDEFIX , Functions

Multiple Choice Multiple Answer
 Question
Reasons of creation of views are :-
Correct Answer
When data security is required , When data redundancy is to be kept to minimum.
Your Answer
When data security is required , When data redundancy is to be kept to minimum. , To remove or to change all data , When sharing of data is required

Select The Blank
 Question
Data types CHARACTER AND CHARACTER VARYING are known collectively as ________.
Correct Answer
Character string data types
Your Answer
Character string data types

Multiple Choice Multiple Answer
 Question
The front end of database consists of tools such as :-
Correct Answer
Forms , Query evaluators , Graphical user interfaces
Your Answer
Forms , Query evaluators , Report writers , Graphical user interfaces

Select The Blank
 Question
________ is protection of database against intentional and unintentional threats that may be computer-based or non-computer-based.
Correct Answer
Security
Your Answer
Security

Multiple Choice Multiple Answer
 Question
What are secured using authorization and access control?
Correct Answer
The intranet , Local clients , Operators
Your Answer
The intranet , Local clients , Operators , The internet

Multiple Choice Single Answer
 Question
When two entities are associated then the relationship which exists is called :-
Correct Answer
Binary relationship
Your Answer
Quarterly relationship

Multiple Choice Single Answer
 Question
Shadow paging technique maintains two pages during the life time of a transaction namely :-
Correct Answer
Current page & Shadow page
Your Answer
Current page & Shadow page

Multiple Choice Single Answer
 Question
Write output of following example SELECT SUBSTR('SECURE',3,4) FROM DUAL
Correct Answer
CURE
Your Answer
SERE

True/False
 Question
A fully developed data model includes domains for each attribute in the E-R model.
Correct Answer
True
Your Answer
True

Multiple Choice Single Answer
 Question
Which of the following term means that the data model is not specific to any particular application?
Correct Answer
Sharebillity
Your Answer
Structured validity

Match The Following
Question
Correct Answer
Your Answer
DBA
Data base administrator
Data base administrator
UML
Unified modeling language
Unified modeling language
DBMS
Data base management system
Data base management system
RDBMS
Relational DBMS
Relational DBMS

True/False
 Question
If attribute is multi-valued then single lines are used.
Correct Answer
False
Your Answer
True

Select The Blank
 Question
In________there is no security of data.
Correct Answer
DBMS
Your Answer
RDBMS

Select The Blank
 Question
________ is a process by which user's identity is checked.
Correct Answer
Authentication
Your Answer
Authentication

True/False
 Question
If attribute is derived dotted line is used.
Correct Answer
True
Your Answer
True

Database Management System - 1

LIST OF ATTEMPTED QUESTIONS AND ANSWERS



Select The Blank
 Question
Data types BIT and BIT VARYING are known as ________.
Correct Answer
Bit string data types
Your Answer
Bit string data types

Select The Blank
 Question
A ________ is collection of tables where table is an unordered collection of rows.
Correct Answer
Relational Database
Your Answer
Relational Database

True/False
 Question
Physical design is tailored to a specific DBMS system.
Correct Answer
True
Your Answer
True

Multiple Choice Single Answer
 Question
WWW stands for :-
Correct Answer
World wide web
Your Answer
World wide web

Multiple Choice Multiple Answer
 Question
In a two tier architecture, the software components are distributed over which two systems?
Correct Answer
Client , Server
Your Answer
Client , Server

Select The Blank
 Question
________ are binary computer representations of stored logical entities.
Correct Answer
Data
Your Answer
Data

Multiple Choice Single Answer
 Question
Access to a database can be controlled using :-
Correct Answer
Access Privileges
Your Answer
Access Privileges

Multiple Choice Multiple Answer
 Question
Which of the following is a criterion that should be satisfied by an optimal data model?
Correct Answer
Structural validity , Express ability , Shareability
Your Answer
Structural validity , Express ability , Shareability , Maintenance of hardware system

Select The Blank
 Question
A ________ is a situation, event or personnel that will adversely affect the database security and the smooth functioning of organization.
Correct Answer
Threat
Your Answer
Integrity

Multiple Choice Multiple Answer
 Question
Different syntaxes used for update command in SQL are as follows :-
Correct Answer
update
set = , update

set = where

Your Answer
update from
set =


True/False
 Question
Database design model help in improving maintainability.
Correct Answer
True
Your Answer
True

Multiple Choice Single Answer
 Question
If role B has been previously granted to role A :-
Correct Answer
Role A cannot be granted to role B
Your Answer
Role A cannot be granted to role B

Multiple Choice Multiple Answer
 Question
Write examples of dbms :-
Correct Answer
FoxBASE , FoxPro
Your Answer
FoxBASE , FoxPro , Cobol , Pascal

Multiple Choice Single Answer
 Question
A database must be protected against :-
Correct Answer
Viruses
Your Answer
Viruses

Select The Blank
 Question
Each attribute is associted with set of values called as________
Correct Answer
Domain
Your Answer
Domain

True/False
 Question
A fuzzy checkpoint allows transactions to perform updates even while buffer blocks are being written out.
Correct Answer
True
Your Answer
True

Multiple Choice Single Answer
 Question
When a particular transaction never makes progress because the data item it wants to lock is already locked and other transactions are also waiting for the same data item then it is said to be :-
Correct Answer
Starvation
Your Answer
Deadlock

True/False
 Question
A program is a collections of instructions for manipulating data.
Correct Answer
True
Your Answer
True

Multiple Choice Single Answer
 Question
The set of all relationships of the same type called as
Correct Answer
Relationship set
Your Answer
Relationship set

Multiple Choice Multiple Answer
 Question
Deadlock prevention scheme using time stamps are:-
Correct Answer
Wait - die , Wound - wait
Your Answer
Wait - die , Wound - wait , Rollback , Starvation

Multiple Choice Multiple Answer
 Question
Specify any 2 forms of insert command :-
Correct Answer
INSERT INTO SELECT , FROM , INSERT INTO SELECT , FROM WHERE
Your Answer
INSERT INTO SELECT , FROM , INSERT INTO SELECT , FROM WHERE

Multiple Choice Single Answer
 Question
Which SQL statement will show contents of table book, where 2nd character of bookname is 'm' ?
Correct Answer
select * from book where bookname like '_m%'
Your Answer
select * from book where bookname like '%m_'

Select The Blank
 Question
In a database for geographic information system ________ can be stored.
Correct Answer
Satellite images
Your Answer
Satellite images

Select The Blank
 Question
________ is visual representation of Entity Relationships.
Correct Answer
ERD
Your Answer
Relation

Multiple Choice Multiple Answer
 Question
Some clauses of GRANT command are as follows :-
Correct Answer
ALL , ON , PUBLIC
Your Answer
ALL , ON , PUBLIC

Multiple Choice Single Answer
 Question
Which of the following is high level data model?
Correct Answer
Entity-Relationship model
Your Answer
Entity-Relationship model

Multiple Choice Multiple Answer
 Question
Advantages of Database Management System are :-
Correct Answer
Reduced redundancy , Sharing of data , Security
Your Answer
Reduced redundancy , Sharing of data , Security , Work Space required for execution and storage is less

Select The Blank
 Question
________ is the process by which the user's access to physical data in the application is limited, based on his privileges.
Correct Answer
Access control
Your Answer
Packet sniffers

Select The Blank
 Question
Diagrammatic representation in data modeling is ________ to represent a model in diagrammatic notation.
Correct Answer
Capability
Your Answer
Capability

Select The Blank
 Question
Entity name is written in ________ in E-R diagram.
Correct Answer
Upper case
Your Answer
Upper case

True/False
 Question
The database is partitioned into some number of fixed length block called as pages.
Correct Answer
True
Your Answer
True

Multiple Choice Multiple Answer
 Question
Following are properties of roles allowed for easier privilege management :-
Correct Answer
Application awareness , Reduced privilege administration , Dynamic privilege administration
Your Answer
Reduced privilege administration , Dynamic privilege administration , Application awareness

True/False
 Question
Database is widely used in banking.
Correct Answer
True
Your Answer
True

Multiple Choice Single Answer
 Question
What is many-to-one relationship between two sets of attributes of a given relation?
Correct Answer
Functional dependency
Your Answer
Functional dependency

Match The Following
Question
Correct Answer
Your Answer
Data files
Stores the database itself
Stores the database itself
Person who design and implement Database management system modules
Database Management system designers and implementers
Database Management system designers and implementers
Person who design and implement tools
Tool developers
Tool box developers
Person responsible for running and maintenance of Hardware and Software in a Database
Operators and maintenance personal
Operators and maintenance personal

Select The Blank
 Question
File is collection of ________
Correct Answer
records
Your Answer
records

Multiple Choice Multiple Answer
 Question
The levels of abstraction of data are :-
Correct Answer
Physical level , Logical level , View level
Your Answer
Physical level , Logical level , View level

True/False
 Question
>= ' is arithmetic operator.
Correct Answer
False
Your Answer
False

True/False
 Question
DES provides standards based encryption for data privacy.
Correct Answer
True
Your Answer
True

Multiple Choice Multiple Answer
 Question
Block movements between disk and main memory are initiated through two operations namely :-
Correct Answer
Input , Output
Your Answer
Input , Output

Multiple Choice Single Answer
 Question
What is alternative name for functions?
Correct Answer
Methods
Your Answer
Methods

Multiple Choice Multiple Answer
 Question
ERD captures :-
Correct Answer
Entity type , Attributes , Relationship between entities
Your Answer
Entity type , Attributes , Relationship between entities

Match The Following
Question
Correct Answer
Your Answer
Menu driven interface
Stand alone user
Stand alone user
Query language interface
Casual user
Casual user
Programming language interface
Application user
Application user
Forms and command code
Parametric user
Parametric user

Select The Blank
 Question
________are two critical phases in database development lifecycle.
Correct Answer
Data modeling and database design
Your Answer
Information and program

Multiple Choice Single Answer
 Question
The set of all entities of the same type called as
Correct Answer
entity set
Your Answer
entity set

Multiple Choice Single Answer
 Question
A graphical user interface typically displays a schema to the user in which form?
Correct Answer
Diagrammatic form
Your Answer
Statement form

Multiple Choice Single Answer
 Question
Command to create table catalog having similar structure as book is :-
Correct Answer
CREATE TABLE CATALOG LIKE BOOK
Your Answer
CREATE STRUCTURE CATALOG LIKE BOOK

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