Database Management System (DBMS) - 5

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

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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

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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

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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

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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