DBMS MCQ Question Bank

8/10/2019 DBMS MCQ Question Bank

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Important MCQ Questions on DBMS

1. _______refers to the basic facts and entities, such as names and numbers.

a. Data

b. Information

c. Input

d. Output

2. Information is processed from __________

a. Output

b. Data

c. Memory

d. one of these

!. MIS stands for"

a. Mana#ement Information Ser$er

b. Mana#ement Information Ser$ice

c. Mana#ement nformation System

d. Master Information System

%. &hich is the fa'se statement"

a. ( database is ordered co''ection of data.

b. ( database is systematic compi'ation of records in a computer.

c. DBMS mana#es the database

d. Data he'ps in ma)in# decisions.

*. &hich is the data mode'

a. +e'ationa'

b. Obect-+e'ationa'

c. etor)

d. ('' of these

/. &hich is not the feature of database"

a. Data redundancy

b. Independencec. 0'eibi'ity

d. Data Inte#rity

. &hich is the type of data independence"

a. 3hysica' data independence

b. 4o#ica' data independence

c. Both

d. one of these

5. &hich is the feature of database"

a. Query 4an#ua#e

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b. Mu'ti user access

c. Data Dictionary

d. ('' of these

6. &hich is the ad$anta#e of database"

a. 3re$ents Data redundancyb. +estricts unauthori7ed access

c. 3ersistent stora#e

d. Bac)up and reco$ery

e. Inte#rity Constraints

f. ('' of these

18. &hich is the database 'an#ua#e"

a. C

b. C99

c. SQ4

d. one of these

11. &hich person is responsib'e for o$era'' acti$ities for database"

a. Database desi#ner

b. Database ana'yst

c. Database (dministrator

d. Database mana#er

12. &hich 'e$e' of database is $ieed by user"

a. Interna' 'e$e'

b. :terna' 4e$e'

c. Conceptua' 4e$e'

d. ('' of these

1!. Interna' 'e$e' has"

a. Indi$idua' ;sers


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2!. (n entity has a set of ___________ that describe it.

a. (ttributes

b. :ntity

c. =up'es

d. +e'ations

2%. In :+ mode' rectan#'e represents"

a. (ttributes

b. :ntity set

c. +e'ationships

d. one of these

2*. Date is the type of attribute"

a. Simp'e

b. Composite

c. Sin#'e $a'ues

d. Mu'ti $a'ued

2/. __________is the attribute or #roup of attributes that uni?ue'y identify occurrence of each entity.

a. 0orei#n )ey

b. Super @ey

c. 3rimary @ey

d. ('' of these

2. _________is the rea' or'd obect, such as a person, p'ace etc.

a. (ttribute

b. :ntity

c. +ecords

d. ('' of these

25. Arant and re$o)e is the type of command"

a. DD4

b. DM4c. DC4

d. DQ4

26. ( user that mana#es the fi'es of app'ication in DBMS is ca''ed"

a. (dministrator

b. Database ana'yst

c. 0i'e Mana#er

d. one of these

!8. ________is the information about data.

a. Data



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b. Meta-Data

c. :ntity

d. +e'ations

1. DB( stands for"

a. Database associated

b. Database administrator

c. Database app'ication

d. one of these

2. DBMS stands for"




d. Database mana#ement system

!. &hich means a p'ace here data can be stored in a structured manner"

a. C3;

b. Database

c. (4;

d. ('' of these

%. ( database is a comp'e ______"

a. Data structure

b. Memory

c. Both

d. one

*. =he set of data a$ai'ab'e to the user, the so-ca''ed"a. Start-user data

b. :nd-user data

c. Database

d. one of these

/. >o is describin# the end-user data"

a. Memory

b. C3;

c. (4;



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d. Data

. DBMS is to impose a 'o#ica' and structured or#ani7ation on"

a. +e#ister

b. Data

c. Memory

d. one of these

5. >o many basic operation performed in DBMS"

a. 1

b. 2

c. !

d. %

6. Basic operation performed in DBMS are"

a. Mana#ement of data in the database

b. Mana#ement of user associated ith database

c. Both

d. one

18. _____is a co''ection of pro#rams performin# a'' necessary action associated ith a database"

a. Database associatedb. Database administrator



11._______is a pro#ram or set of pro#ram that interacts ith the database at some point in its eecution"

a. ( database system

b. ( database app'ication

c. Both

d. one

12.________is a co''ection of app'ication pro#rams that interacts ith the database a'on# ith DBMS"

a. ( database system

b. ( database app'ication

c. Both

d. one

1!.In hich ser$ices the processes of database mana#ement and data mana#ement are comp'ementary"




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1%.(CID stands for"

a. (tomicity, consistency, iso'ation, and durabi'ity

b. (tomicity, command, inte#rity, and data

c. (tomicity, contro', inte#rated, and direct

d. one of these

1*. ( DBMS pro$ides users ith the conceptua' representation of"

a. +e#ister

b. Data

c. 4o#ica' $ie

d. 3hysica' $ie

1/.&hich structure of data c'ear'y is one of the main features of the database approach"

a. 4o#ica' $ie

b. 3hysica' $ie

c. Both

d. one1.( _____$ie of data epresses the ay a user thin)s about data

a. 4o#ica' $ie

b. 3hysica' $ie

c. Both

d. one

15.( physica' $ie of data refers to the ay data is hand'ed at a_____ its stora#e and retrie$a'"

a. >i#h 'e$e'

b. 4o 'e$e'

c. Medium 'e$e'

d. ('' of these

16.In 'o#ica' and physica' $ie of data the set of princip'es that defines a data mode' may be di$ided into

ho many parts"

a. 1

b. 2

c. !



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d. %

28.In 'o#ica' and physica' $ie of data the set of princip'es that defines a data mode' may be di$ided into

hich part"

a. Data definition

b. Data manipu'ation

c. Data inte#rity

d. ('' of these

21.=he o$era'' description of a database is ca''ed______"

a. Data definition

b. Data manipu'ation

c. Data inte#rity

d. Database schema

22.&hich is proper subset desi#ned to support $ies be'on#in# to different c'asses of users in order to hid

or protect information"

a. Schema

b. Subschema

c. on-schema

d. one-subschema

2!.( data dictionary is a repository that mana#es _____"

a. Database

b. Memory

c. Metadata

d. ('' of these

2%.&hich 'an#ua#es are used to define and ?uery a database"

a. Database

b. Memory

c. Metadata

d. ('' of these

2*.DD4 stand for"

a. Data definition 'an#ua#e

b. Data description 'an#ua#es

c. Data desi#n 'an#ua#esd. Database dictionary 'an#ua#es



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2/.&hich are the not most fre?uent'y used DD4 statements"

a. C+:(=:

b. D+O3

c. (4=:+

d. one of these

2.


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c. SD4

d. ost 'an#ua#es

c.


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!6. =he DM4 is ca''ed"

a. Sub'an#ua#es

b. >ost 'an#ua#es

c.


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c. Both

d. ('' of these

%/.&hich is the transformation of re?uests and resu'ts beteen different 'e$e's of abstraction"

a. :$a'uation

b. Mappin#

c. Compi'er

d. 3recompi'er

%.&hich mappin# eists beteen the conceptua' and interna' 'e$e's"

a. Conceptua'

b. Interna'

c. Both

d. one

%5.&hich mappin# eists beteen the eterna' and conceptua' 'e$e's"

a. Conceptua'

b. Interna'

c. Both

d. one%6.=he re'ated and interconnected softare components of a DBMS are described by the _______"

a. 4o#ica' architecture

b. 3hysica' architecture

c. Both

d. one

*8.&hich are the types of physica' DBMS architecture can be sp'it "

a. Bac) end

b. 0ront end

c. Both

d. one

*1.In hich end is rea''y ust any app'ication that runs on top of the DBMS and acts as a user interface"

a. Bac) end

b. 0ront end

c. Both

d. one



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*2.Data are stored in________ as database"

a. Data fi'es

b. Data dictionary

c. Database

d. Data administrator

*!.+(D stands for"

a. +otate app'ication de$e'opment

b. +e#ister app'ication de$e'opment

c. +e'ated app'ication de$e'opment

d. +apid app'ication de$e'opment

*%.D( stands for"

a. Data administrator

b. Database acti$e

c. Define app'ication

d. ('' of these

**.&hich is the person responsib'e for o$era'' contro' f the database system"

a. DD4

b. DBMSc. DB(

d. SD4

*/.DB( stands for"

a. Database maintenance


c. Database bac)up

d. Database desi#ner

*.=ransaction is an action used to perform some manipu'ation on data stored in the____"

a. Memory

b. +ecord

c. Database

d. ('' off these

*5.>o many features of a DBMS hich pro$ide a number of ad$anta#es for data mana#ement"

a. 1

b. !



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c. *

d.

*6.&hich is a DBMS )eeps bac)-up copies of the database"

a. Bac)up

b. +eco$ery

c. Both

d. one

/8.In hich the database can be restored up to the 'ast consistent state after the system fai'ure"

a. Bac)up

b. +eco$ery

c. Both

d. one

/1.&hich are the not user in :nd-user"

a. a$e users

b. Casua' users

c. Sophisticated user

d. ('' of these

/2.&hich are the not features of a DBMS hich pro$ide a number of ad$anta#es for data mana#ement"a. DM4

b. DD4

c. SD4

d. one of these

/!.Minima' data redundancy means impro$ed _________"

a. Data independence

b. Data consistency

c. Data inte#ration

d. Data sharin#

/%.&ho access the database occasiona''y and ha$e different needs each time"

a. a$e users

b. Casua' users


d. ('' of these

/*.&ho interact ith the system ithout ritin# a pro#ram"



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a. a$e users

b. Casua' users


d. ('' of these

//.&ho interact ith the system by in$o)in# one of the permanent app'ication pro#ram"

a. a$e users

b. Casua' users


d. ('' of these

/.=he main interface that a nati$e user uses is a form interface usin#___"

a. DD4

b. A;

c. O4(3

d. DM4

/5.=he pro$ision of _______ is a maor obecti$e for database system"

a. Data independence

b. Data consistency

c. Data inte#rationd. Data sharin#

/6.&ho is re?uested to carry out $arious operation, such as insert, de'ete, update and retrie$a' $iours on

the database by the user"

a. DB(

b. DBMS

c. DBS

d. DD48.____ is a trans'ates into 'o-'e$e' instruction that a ?uery processor understands"

a. DB(

b. DBMS

c. DBS

d. DD4

1.+etrie$a' of data is done by usin# a ____"

a. Stac)

b. Query



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c. 4in)ed 'ist

d. ('' of these

2.DM4 is a 'an#ua#es by hich user accesses or manipu'ates the ________"

a. Data mode'

b. Data consistency

c. Data inte#ration

d. Data sharin#

!.&hich is the centra' component of the DBMS softare that can a'so be termed as the database contro'

system"

a. Data consistency

b. Data inte#ration

c. Data sharin#

d. Data mana#er

%.&hich is stored information about description of data in the database"

a. Data fi'es

b. Data dictionary

c. Database

d. Data administrator

*.(fter con$ersion of hi#h 'e$e' ?ueries into 'o 'e$e' commands for fi'e access and is ca''ed

compi'ed_____"

a. DD4

b. DM4

c. SD4

d.


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b. +ecord b'oc)in#

c. 0ied-'en#th record

d.


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61. &hich are is not type of recodes in a fi'e-based system"

a. 4o#ica' records

b. 3hysica' records

c. Both

d. one

62.&hich contain information about a fi'e needed by system pro#rams for accessin# fi'e records"

a. 0i'e b'oc)s

b. 0i'e operations

c. 0i'e headers

d. one of these

6!.=he fi'e operations can be di$ided into ho many cate#ories"

a. 1

b. 2

c. !

d. %

6%._____ ta)e into account on'y such records that are $a'id"

a. ('#orithm

b. Searchin# a'#orithmc. 0'o chart

d. ('' of these

6*. ______ fi'e or#ani7ation is $ita' for ensurin# the most efficient access of fi'es and records"

a. 0i'e b'oc)s

b. 0i'e operations

c. 0i'e headers

d. 0i'e or#ani7ation

6/.e records are p'aced at the end of the fi'e it is referred to as____"

a. >eap fi'e

b. 3i'e fi'e

c. Both

d. one

6.=he fie'd hich is used to order the fi'e is referred to as ________"

a. Sorted fie'd

b. Orderin# fie'd



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c. Both

d. one

65.Binary search accesses _____ b'oc)s"

a. 4o#FbG

b. 4o#2FbG

c. 2'o#FbG

d. 4o#F2bG

66.&hich pro$ides precise partition beteen abstract characteristics of the data type and its

imp'ementation specifications"

a. Data

b. Data item

c. 0i'e

d. Data abstraction

188.ODBS stands for"

a. Off data base connection

b. Open data base connection

c. Oriented data base connection

d. ('' of these

181.DD4 stands for"

a. Decode data 'an#ua#es

b. Data define 'an#ua#es

c. Database define 'an#ua#es

d. Define data 'an#ua#es

182. SO( stands for"

a. Ser$ices oriented abstractionb. System oriented abstraction

c. Ser$ices oriented architecture

d. ('' of these

18!. (DS4 stands for"

a. (c?uired data system 'ine

b. (symmetric di#ita' subscribe 'ine

c. (symmetric di#ita' subscribe 'an#ua#es

d. (c?uired data system 'an#ua#es



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18%.&hich ser$ices are insu'ated by abstraction from the fundamenta' physica' data"

a. DD4

b. ODBC

c. SO(

d. (DS4

18*.:II stand for"

a. :nterpriseinformation inte#ration

b. :nd information inte#ration

c. :nterprise input information

d. one of these

18/.______ is another name #i$en to data inte#ration hen use in the mana#ement contet"

a. :

b. I:I

c. A;I

d. S;I

18.4(< stands for"

a. 4o#ica' as $ie

b. 4oca' as $iec. 4and as $ie

d. 4ast as $ie

185.A(< stands for"

a. A'oba' as $ie

b. A'oba' as $erify

c. Both

d. one

186.:=4 stands for"

a. :nd transformin# and 'oudenin#

b. :tractin# transformin# and 'oadin#

c. :tractin# transformin# and 'an#ua#es

d. :nd transformin# and 'an#ua#es

118.ASM stands for"

a. A'oba' source mappin#

b. A'oba' system map



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c. A'oba' system master

d. A'oba' system mode

111.&hich are the accepted ays for mode'in# such correspondence"

a. 4(o many components in re'ationa' mode'"

a. 1b. 2

c. !

d. %

1*.&hich components are use in ma)e up the re'ationa' mode'"

a. Structura'

b. Manipu'ati$e

c. Inte#rity

d. ('' off these

1/. &ho is represent a data base as a co''ection of re'ation $a'ue"

a. Data mode'

b. +e'ation mode'

c. +ecord based 'o#ica' mode'

d. ('' of these

1.=he headin# of a re'ation is a'so referred to as ________"

a. +e'ation schema



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b. Intension

c. Both

d. one

15.In re'ationa' mode' the body of the re'ation is referred to as_______"

a. :tension

b. Criterion

c. +e'ation

d. one of these

16. &hich is the set of defined atomic $a'ues for an attribute"

a. Domain

b. Data

c. +e#ister

d. Mode's

28.&hich is the name of ro'e p'ayed by a domain in the re'ation"

a. +e'ationa' schema

b. Domain

c. (ttribute

d. +e'ation21. &hich is made up of re'ation name and a 'ist of attributes"

a. +e'ationa' schema

b. Domain

c. (ttribute

d. +e'ation

22.( ______ is defined as the subset of the subset of the Cartesian product of domains"

a. :tension

b. Criterion

c. +e'ation

d. one of these

2!.SQ4 schema is ho many types of re'ation schema may be defined"

a. 2

b. !

c. %

d. *



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2%.In a SQ4 schema may be defined as hich types"

a.

d. O:

2*.C(D stands for"

a. Computer aided desi#n

b. Computer aided data

c. Computer aided database

d. one of these

2/.&hich is refers to )no'ed#e about the meanin# of data"

a. Data types

b. Base re'ation

c. Semantic )no'ed#e

d. ('' of these

2.In hich is do not fu''y support the domain concept"

a. DBMS

b. DBSc. +DBMS

d. ('' of these

25.&hich is used for searchin# and retrie$in# records from the database"

a. DBS

b. DBMS

c. DD4

d. DM4

26. >o many types of data structures used in hierarchica' mode'"

a. 2

b. !

c. %

d. *

!8.3C+ stands for"

a. 3rimary chi'd re'ationship

b. 3arent chi'd re'ationship



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c. Both

d. one

!1.&hich types of data structures used in >ierarchica' mode'"

a. 3C+

b. +ecords

c. Both

d. one

!2._____it is an1" re'ationship beteen to different record types"

a. D(=(

b. +:4=IO

c. 3C+

d. ('' of these

!!.&hich is a database mode' used to represent obects and the re'ationship amon# these obects"

a. Data mode'

b. +e'ation mode'

c. >ierarchica' mode'

d. etor) mode'



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. +e'ationa' ca'cu'us can be di$ided into ho many ca'cu'i"

a. 2

b. !

c. %

d. *

5. &hich is re'ation ca'cu'us"a. =up'e re'ation ca'cu'us

b. Domain re'ationa' ca'cu'us

c. Both

d. one

6. &hich ca'cu'us is based on specifyin# a number of tup'e $ariab'es"

a. =up'e re'ation ca'cu'us

b. Domain re'ationa' ca'cu'us

c. Both

d. one

18. SQ4 is used for interactin# ith___"

a. DBMS

b. +DBMS

c. DD4

d. SD4

11. SQ4 is a ______'an#ua#es"

a. Database 'an#ua#es

b. Dec'arati$e 'an#ua#es

c. Both

d. one

12. ISO stands for"

a. Input standards or#ani7ation

b. Interrupt standard or#ani7ation

c. nternationa' standards or#ani7ation

d. one of these

1!. &hich is a co''ection of a defined #roup of database obect 'i)e tab'es, indees, tab'espace"

a. Database

b. +ecord

c. Memoryd. ('' of these

1%. (_____ is a sin#'e non-decomposab'e data e'ement in a tab'e"

a.


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1/. >o many forms of SQ4"

a. 2

b. %

c. /

d. one of these

1. &hich are form of SQ4"a. Interacti$e

b. :mbedded

c. Both

d. one

15. In SQ4 hich operators on a data base to produce output for user demand"

a. nteracti$e

b. :mbedded

c. Both

d. one

16. In SQ4 hich command can be put inside a pro#ram ritten in some other 'an#ua#es 'i)e C,C99"

a. Interacti$e

b. :mbedded

c. Both

d. one

28. Data is passed to a pro#ram en$ironment throu#h______"

a. DBMS

b. SQ4

c. DD4

d. SD4

21. DQ4 stands for"

a. Data ?uery 'ine

b. Data ?uery 'an#ua#es

c. Data ?uery 'and

d. Direct ?uery 'an#ua#es

22. =C4 stands for"

a. =ransaction contro' 'an#ua#es

b. =ransaction command 'an#ua#es

c. =ransaction connect 'an#ua#esd. one of these

2!. &hich is that part of SQ4 that a''os a database user to create and restructure data base obects"

a. DBMS

b. SQ4

c. DD4

d. SD4

2%. ______commands in SQ4 a''o contro''in# access to data ithin database"

a. Database

b. Datac. Data contro'

d. ('' of these



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2*. >o many interfaces pro$ided by orac'e"

a. 1

b. 2

c. !

d. %

2/. In hich are interface pro$ided by orac'e"a. SQ4 H34;S

b. SQ4H34;S command 'ine interface

c. SQ4 3'us &or)sheetFintroduced in O+(C4:5iG

d. SQ4 H34;SFintroduced in O+(C4:6iG

e. ('' of these

f. one of these

2. SQ4 has ho many main commands for DD4"

a. 1

b. 2

c. !

d. %

25. &hich are main commands for DD4 in SQ4"

a. C+:(=:

b. (4=:+

c. D+O3

d. ('' of these

26. >o many data types in orac'e"

a. 2

b. !

c. %

d. *

!8. In hich are the data types in orac'e"

a. (SI standard data types

b. Orac'e defined data types

c. Both

d. one

!1. (_____ is a ?uery that retrie$es ros from more than one tab'e or $ie"

a. Startb. :nd

c. Ioin

d. ('' of these

!2. ( condition is referred to as _____"

a. oin in SQ4

b. Ioin condition

c. Both

d. one

!!. &hich orac'e is the oin condition is specified usin# the &>:+: c'ause"a. Orac'e 6i

b. Orac'e 5i



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c. 3re-orac'e 6i

d. 3re-orac'e 5i

!%. Orac'e-6i is supported by the__________ synta"

a. (SI SQ4-6/

b. (SI SQ4-6

c. (SI SQ4-65d. (SI SQ4-66

!*. >o many oin types in oin condition"

a. 2

b. !

c. %

d. *

!/. &hich are the oin types in oin condition"

a. Cross oin

b. atura' oin

c. oin ith ;SIA c'ause

d. Outer oin

e. oin ith O c'ause

f. ('' of these

!. >o many tab'es in a oin ?uery ha$e no oin condition"

a. 2

b. !

c. %

d. one of these

!5. &hich product is returned in a oin ?uery ha$e no oin condition"

a. :?uioins

b. Cartesian

c. Both

d. one

!6. &hich is a oin condition contains an e?ua'ity operator"

a. :?uioins

b. Cartesian

c. Both

d. one%8. &hich command defines its co'umns, inte#rity constraint in create tab'e"

a. Create command

b. Drop tab'e command

c. ('ter tab'e command

d. ('' of these

%1. It refers to set of one or more co'umns that desi#nates the ______ )ey in a referentia' inte#rity constraint"

a. Se'ect )ey

b. 0orei#n )ey

c. &rite )eyd. one of these

%2. &hich constraint that re?uires that the co'umn contain a $a'ue hen it is initia''y inserted into the tab'e"



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a. IS ;44

b. O= ;44

c. ;IQ;:

d. one

%!. &hich constraint that identifies a co'umn or combination of co'umns as a uni?ue )ey"

a. IS ;44b. O= ;44

c. ; Q;:

d. one

%%. &hich command is use for remo$in# a tab'e and a'' its data from the database"

a. Create command

b. Drop tab'e command

c. ('ter tab'e command

d. ('' of these

%*. &hich command that a''os the remo$a' of a'' ros from a tab'e but f'ushes a tab'e more efficient'y since

no ro''bac) information is retained"

a. =+;C(=: command

b. Create command

c. Drop tab'e command

d. ('ter tab'e command

%/. &hich oin refers to oin records from the rite tab'e that ha$e no matchin# )ey in the 'eft tab'e are inc'ude

in the resu't set"

a. 4eft outer oin

b. +i#ht outer oin

c. 0u'' outer oin

d. >a'f outer oin

%. >o many set operations supports the orac'e SQ4"

a. 2

b. !

c. %

d. *

%5. &hich are the set operations supports the orac'e SQ4"

a. ;IO

b. ;IO (44c. I=:+S:C=

d. MI;S

e. ('' of these

%6. ______ operator mer#es the resu't sets of to component ?ueries"

a. ;IO

b. ; O (44

c. I=:+S:C=

d. MI;S

*8. >o many component ?ueries are combined usin# the set operators"a. 1

b. 2



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c. !

d. %

*1. In precedence of set operators the epression is e$a'uated from______"

a. 4eft to 4eft

b. +i#ht to +i#ht

c. 4eft to +i#ht

d. +i#ht to 4eft

*2.


36/58

b. Datab'e oin $ie

c. ;pdatab'e oin $ie

d. ('' of these

/8. &hich option is used to create a $ie as a constrained $ie and prohibit specific insert and update

operations ith the $ie"

a. D(=(B(S:b. & => C>:C@ O3= O

c. &I=> &+I=: O3=IO

d. &I=> O3=IO

/1. &hich command is used to add the $ies to the database"

a. D(=(B(S: :+: c'ause"

a. D(=(B(S:

b. & => C>:C@ O3= O

c. &I=> &+I=: O3=IO

d. &I=> O3=IO

/!. &hich option may be used to create the in'ine $ie as a constrained $ie"

a. D(=(B(S:

b. & => C>:C@ O3= O

c. &I=> &+I=: O3=IO

d. &I=> O3=IO

/%. In hich year O+(C4:, an SQ4 product as re'eased"

a. 16/

b. 16

c. 165

d. 166

/*. =he prototype for SQ4 as ori#ina''y de$e'oped by"

a. I=:4

b. (334:

c. BM

d. ('' of these//. In hich year re'ationa' a'#ebra became prominent after the re'ationa' mode' of database as pub'ished"

a. 16/6

b. 168

c. 161

d. 162

/. +e'ationa' a'#ebra became prominent after the re'ationa' mode' of database as pub'ished by"

a. Codds

b. 0.0. codd

c. :.:. coddd. one of these

/5. &hich is an (SI standard and has many different $ersions"



37/58

a. IBM

b. SQ4

c. +DBMS

d. O+(C4:

/6. &hich is used for interfacin# ith +DBMS"

a. IBMb. SQ4

c. (SI

d. O+(C4:

8. &hich is the basis for SQ4 and a'so for a'' other contemporary database system 'i)e MS SQ4 Ser$er, IBM

DB2, Orac'e, My SQ4 and MIC+OSO0= (ccess"

a. DD4

b. SD4

c. +DBMS

d. one of these

1. &hich is basica''y an +DBMS in hich obect oriented features are imp'emented"

a. a$a

b. C99

c. Orac'e

d. DBMS

2. &hich as the first commercia' +DBMS"

a. MS SQ4

b. DB2

c. MJ SQ4

d. O+(C4:

!. In hich year +SI introduced orac'e File hosted by educationobserver.com/forum


38/58

*. &hich $ersion of orac'e supported mu'ti-$ersion read consistency"

a.

a. c. d. Orac'e


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a. Orac'e d. Orac'e


40/58

16. =ab'es and indees that are data of 'o#ica' database structure that are stored physica''y in the form

of______"

a. Data fi'es

b. Contro' fi'es

c. On'ine redo 'o# fi'esd. ('' of these

28. &hich fi'es has metadata that specifies database structure that inc'udes database name a'on# ith database

fi'es names and 'ocations"

a. Data fi'es

b. Contro' fi'es

c. On'ine redo 'o# fi'es

d. ('' of these

21. &hich is a'so )non as redo records, recordin# hate$er chan#es are made to data"

a. Data fi'es

b. Contro' fi'es

c. On'ine redo 'o# fi'es

d. ('' of these

22. =he data in orac'e database is stored in b'oc)s )non as ________"

a. Data b'oc)s

b. :tents

c. Se#ments

d. =ab'espaces

2!. &hich contains many etents"

a. Data b'oc)s

b. :tentsc. Se#ments

d. =ab'espaces

2%. _____ shos a specified number of data b'oc)s that are 'o#ica''y conti#uous and )eeps a particu'ar type of

information in its stora#e"

a. Data b'oc)s

b. :tents

c. Se#mentsd. =ab'espaces



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2*. &hich are 'o#ica' stora#e units contained in a database and a 'o#ica' container for some se#ment"

a. Data b'oc)s

b. :tents

c. Se#ments

d. =ab'espaces

2/. SO( stands for"

a. Ser$ice- oriented architecture

2. SO(3 stands for"

a. Simp'e obect access protoco'

25. &SD4 stands for"

a. &eb ser$ices description 'an#ua#e

26. OS stands for"

a. Orac'e net ser$ices

!8. O4=3 stands for"

a. On'ine transaction processin#

!1. O4(3 stands for"

a. On'ine ana'ytica' processin#

!2. &hich refers to a softare that can be eecuted on to or more )inds of computer containin# to or more

)inds of operatin# system"

a. Data b'oc)s

b. :tents

c. Se#ments

d. 3ortab'e

!!. &hich refers to independent e$ents of the main pro#ram f'o of the systems that 'ac)s concurrency"

a. +DBMS

b. 3ortab'e

c. (synchronous'y

d. one of these

!%. &hich is a method pro$ided by an operatin# system, runnin# in a se?uence of steps"

a. Stora#e

b. 3rocess

c. Computin#

d. one of these

!*. >o many interfaces pro$ided by orac'e"

a. 1

b. 2



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c. !

d. %

!/. &hich interface pro$ided by orac'e"

a. SQ4H34;S

b. SQ4H34;S command 'ine interfacec. SQ43'us &or)sheet

d. iSQ4H34;S

e. ('' of these

1. (na'ysis of an eistin# system starts hen a customer re?uest either for computeri7in# his ________"a. on-computeri7ed operations

b. Computeri7ed operations

c. +e'ationa' operation

d. Database operation

2. &hich is done by de$e'opers is centered on input and output epected by the customer"

a. +e?uires interaction

b. (na'ysis of startin#

c. (na'ysis of eistin#

d. one of these

!. &hat dose a system desi#n inc'ude"

a. IKO de$ices

b. C3;

c. Stora#e unit

d. ('' of these

%. &hich are used by de$e'opers to etrapo'ate comp'eities of rea' or'd into a computer based mode'"

a. Data ana'ysis techni?ues

b. Data ana'ysis mode'

c. Data structure

d. Data ana'ysis

*. ( conceptua' data mode' defines the structure of the data and method or processes that use"

a. 0i'e

b. Data

c. Operation

d. =estin#

/. CD( stands for"

a. Confirmatory data ana'ysis

. :D( stands for"

a. :p'oratory data ana'ysis

5. &&& stands for"

a. &or'd ide eb



43/58

6. &hich is the forerunner of data ana'ysis ha$in# c'ose 'in) ith data $isua'i7ation and data dissemination"

a. Data ana'ysis mode'

b. Data structure

c. Data ana'ysis

d. Data inte#ration

18. In pre'iminary and fina' desi#ns the desi#n of physica' database focuses the ay data is physica''y_____"a. De'ete

b. Start

c. Stored

d. +ead

11. 3rimary steps for con$ertin# a 'o#ica' data mode' to pre'iminary physica' data mode' are"

a. Con$ertin# entities into fi'e

b. Con$ertin# re'ationship for accessin# paths usin# )eys

c. (ddin#

d. De-norma'i7ation

e. =unin#

f. Con$ertin#

#. +eduction of chain 'en#th

h. ('' of these

i. one of these

12. 3:A stands for"

a. Ioint photo#raphic eperts #roup

1!. M3:A stands for"

a. Mo$in# pictures eperts #roup

1%. D


44/58


c. Imp'ementation

d. ('' of these

16. 0i'es that re?uire immediate access, must be stored on_____"

a. S'o de$ices

b. 0aster de$ices

c. Medium de$ices

d. ('' of these

28. =he batch accesses may be stored on s'o de$ices such as________"

a. Optica' dis)

b. =ape

c. Both

d. one

21. >o many types of chan#eo$er methods"

a. 1

b. 2

c. !

d. %

22. &hich the types of chan#eo$er methods"

a. Direct

b. 3ara''e'

c. 3i'ot

d. Sta#ed or phased

e. ('' of these

2!. >o many types of maintenance"

a. 1

b. 2

c. !

d. %

2%. &hich are the not a type of maintenance"

a. Correcti$e

b. (dapti$e

c. 3erfecti$e

d. one of these

2*. &hich is conducted for assessin# the ?ua'ity of the system produced by de$e'oper for customer"

a. Maintenance


c. Imp'ementation

d. =estin#

1. &hich is one of the maor important components of the re'ationa' database"

a. Query eecution



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b. Query process

c. Query optimi7er

d. Query transaction

2. &hich is refers to the process of restorin# the data that has been stored in a compter"

a. +etrie$e

b. Bac)upc. +eco$ery

d. Dead'oc)

!. Query processin# refers to techni?ue of maintainin# mana#in# and manipu'atin# data stored ith in the

computer system by usin#____ ?ueries"

a. DBMS

b. +DBMS

c. SQ4

d. one of these

%. >o many maor sta#es of ?uery processin#"

a. 1

b. 2

c. !

d. %

*. &hich are the maor sta#es of ?uery processin#"

a. Query eecution

b. Query optimi7er

c. Both

d. one

/. In ?uery processor hich orderin# is re'ated to hash oins by SQ4 ser$er .8"

a. nterestin# orderin#

b. Inde intersection

c. Inde oins

d. 3ara''e' ?ueries

. &hich Microsoft SQ4 ser$er ma)es se'ection of the most appropriate inde e$ery tab'e e$en if there are

many predicates in the ?uery"

a. Microsoft SQ4 ser$er/.8

b. Microsoft SQ4 ser$er/.*

c. Microsoft SQ4 ser$er.8d. Microsoft SQ4 ser$er.*

5. &hich is imp'ement it to the inde intersection in inde oins"

a. SQ4 ser$er/.8

b. SQ4 ser$er/.*

c. SQ4 ser$er.8

d. SQ4 ser$er.*

6. &hich ser$er can oins the indees hen on'y mu'tip'e indees combined can co$er the ?uery"

a. SQ4

b. DBMSc. +DBMS

d. ('' of these



46/58

18. >o many types of dis) IKO"

a. 1

b. 2

c. !

d. %

11. In hich is types of IKO dis)"a. +andom IKO

b. Se?uentia' IKO

c. Both

d. one

12. Choosin# for 'ar#e and non-indeed tab'es, specifica''y for intermediate resu'ts can be termed

as__________"

a. >ashin#

b. 3ara''e'ism

c. Dis)

d. Dead'oc)

1!. SM3 stands for"

a. System mu'ti-processin#

b. Ser$er mu'ti-processin#

c. Symmetric mu'ti-processin#

d. Securin# mu'ti-processin#

1%. &hich in the database hich is a softare component in the +DBMS that carries out ana'ysis of SQ4

statement for findin# the best ay for its eecution"

a. Query eecution

b. Query process

c. Query optimi7er


1*. &hich can be defined as the method in hich the se'ected p'an is eecuted at the ?uery optimi7ation sta#es"

a. Query eecution

b. Query process

c. Query optimi7er


1/. &hich refers to techni?ue of maintainin#, mana#in# and manipu'atin# data store ithin the computer

system by usin# SQ4 ?ueries"a. Query eecution

b. Query processin#

c. Query optimi7er


1. &hich is the method of processin# the p'an se'ected throu#hout ?uery optimi7ation"

a. Query eecution

b. Query process

c. Query optimi7er

d. Query transaction15. &hich refers to a property of computer to run se$era' operation simu'taneous'y and possib'e as computers

aait response of each other"



47/58

a. Concurrency

b. Dead'oc)

c. Bac)up

d. +eco$ery

16. &hich is refers to a sta'emate situation due to hich no further pro#ress is possib'e as computer aait

response of each other"a. Concurrency

b. Dead'oc)

c. Bac)up

d. +eco$ery

28. &hich is a dup'icate copy of a fi'e pro#ram that is stored on a different stora#e media than the ori#ina'

'ocation"

a. Concurrency

b. Dead'oc)

c. Bac)up

d. +eco$ery

21. &hich is dup'ication of computer operations and routine bac)ups to combat any unforeseen prob'ems"

a. Concurrency

b. Dead'oc)

c. Bac)up

d. +eco$ery

22. Optimi7ation that is basica''y re'ated to the reriter modu'e is termed as__________"

a. Semantic ?uery optimi7ation

b. A'oba' ?uery optimi7ation

c. Both

d. one

2!. Optimi7ation basica''y re'ated to the +erite modu'e is termed as_______"

a. Semantic ?uery optimi7ation

b. A'oba' ?uery optimi7ation

c. Both

d. one

2%. Database security he'ps or#ani7ations to protect data from_____"

a. Interna' users

b. :terna' users

c. on-eterna' users

d. on interna' users

2*. Copyin# fi'es to secondary or specific de$ices is )non as______"

a. +etrie$e

b. Bac)up

c. +eco$ery

d. Dead'oc)

2/. >o many types of reco$ery contro' techni?ues"

a. 2

b. !

c. %



48/58

d. *

2. &hich are types of reco$ery contro' techni?ues"



49/58

a. Deferred update

b. Immediate update

c. Both

d. one

1. 0D stands for"

a. 0unctiona' dependency

b. 0aci'itate dependency

c. 0unctiona' data

d. 0aci'itate data

2. In hich mode' of database data is stored in tab'es"

a. etor) mode'

b. +e'ationa' mode'

c. >ierarchica' mode'

d. one of these

!. =he re'ationa' database mode' and after that by a researcher at _______"

a. BM

b. (pp'e

c. Inte'

d. ('' of these

%. =he database containin# tab'es re'ated to each other that he'p in the smooth processin# of data is ca''ed

______"

a. Ser$ice database

b. +e'ation database

c. +e'ated database

d. one of these

*. ( tab'e can be defined as a set of______"

a. +os

b. Co'umns

c. Both

d. one



50/58

/. &hich is $ery essentia' as no sin#'e set has a specific sot order for its e'ements"

a. +os

b. Co'umns

c. =ab'es

d. ('' of these

. >o many types of )eys in re'ation database desi#n"

a. 3rimary )ey

b. Candidate )ey

c. 0orei#n )ey

d. ('' of these

5. &hich )eys are used that are a co'umn in the tab'e"

a. 3rimary )ey

b. Candidate )ey

c. 0orei#n )ey

d. ('' of these

6. &hich )ey is referencin# a primary )ey in a tab'e"

a. 3rimary )ey

b. Candidate )ey

c. 0orei#n )ey

d. ('' of these

18. &hich )ey is used to fined the customer from the tab'e"

a. 3rimary )ey

b. Candidate )ey

c. 0orei#n )ey

d. ('' of these

11. &hich )ey ha$e a common meanin#"

a. 0orei#n )ey

b. 3rimary )ey

c. Both

d. one

12. ( domain is a co''ection of $a'ues from here the co'umns are_____"

a. De'eted



51/58

b. Created

c. Main tend

d. ('' of these

1!. &hich access pro$ides a partia' support to domains"

a. Microsoft

b. Microprocessor

c. Microcomputer

d. Memory

1%. &hich database re'ationship is considered on'y beteen pairs of tab'es"

a. Ser$ice database

b. +e'ationa' database

c. +e'ated database

d. one of these

1*. In re'ationships ho many different ays in hich to tab'es may be re'ated"

a. 1

b. 2

c. !

d. %

1/. In hich ays to tab'es may be re'ated"

a. One-one

b. One-many

c. Many-many

d. ('' of these

1. &hich ru'es are defined in re'ationa' mode's they from as an essentia' part of any re'ation database"

a. nte#rity ru'es

b. Database

c. +ecord

d. Memory

15. >o many types of inte#rity ru'es"

a. 1

b. 2

c. !

d. %



52/58

16. &hich are the types of inte#rity ru'e"

a. Aenera'

b. Database specific

c. Both

d. one

28. >o many #enera' ru'es in a re'ationa' mode' and bein# #enera' ru'es these are app'icab'e to a'' database"

a. 2

b. !

c. %

d. *

21. &hich ru'es are )no as entity inte#rity and referentia' inte#rity"

a. Aenera'

b. Database specific

c. Both

d. one

22. ______states that primary )eys shou'd not be nu''"

a. :ntity inte#rity

b. +eferentia' inte#rity

c. Both

d. one

2!. Inte#rity constraints that do not fa'' under the precedin# to inte#rity ru'es are referred to as______"

a. :ntity inte#rity ru'e

b. +eferentia' inte#rity ru'e

c. Aenera' inte#rity ru'e

d. Database specific inte#rity ru'e

2%. &hich has support for specification of #'oba' ru'e app'icab'e to the ho'e tab'e"

a. Microsoft access1.8

b. Microsoft access1.*

c. Microsoft access2.8

d. Microsoft access2.*

2*. In creatin# a tab'e a ro contains"

a. Memory

b. +ecord

c. 0ie'd

d. one



53/58

2/. In creatin# a tab'e a co'umn contains"

a. Memory

b. +ecord

c. 0ie'dd. one

2. &hich ha$e not ha$e c'ientKser$er architecture"

a. DBS

b. DBMS

c. +DBMS

d. ('' of these

25. &hich command creates database obects 'i)e tab'es $ies and indees"

a. Create command

b. ;pdate command

c. Both

d. one

26. &hich command enab'es a'teration the data stored in eistin# records"

a. Create command

b. ;pdate command

c. De'etion command

d. ('' of these

!8. &hich ?uery oins many dimension of tab'es to a fact tab'e hich contains 'ar#e amount of ros and uses

a##re#ate"

a. IBM

b. SQ4

c. (SI

d. O+(C4:

!1. &hich $a'ued facts forma'i7e the concept of functiona' dependency"

a. Sin#'e-$a'ued

b. Doub'e-$a'ued

c. Both

d. one

!2. &hich re'ationship mode' pro$ides a startin# point for identifyin# schemas and inte#rity constraints"



54/58

a. :ntity

b. +eferentia'

c. Both

d. one

!!. 0D stands for"

a. 0orma' dependency

b. 0unctiona' dependency

c. 0act dependency

d. Superset dependency

!%. &hich is deri$ed from mathematica' theory"

a. IBM

b. SQ4

c. (SI

d. 0D

!*. &hich are dependent on the information of hat can be stored in the re'ation and ser$e as inte#rity

constraints"

a. IBM

b. SQ4

c. (SI

d. 0D

!/. ( re'ation state r of + that satisfies the functiona' dependency constraints is ca''ed_____ of +"

a. 4e#a' re'ation state

b. ;n'e#a' re'ation state

c. 0D

d. ('' of these

!. >o many $arious types of dependencies"

a. 1

b. 2

c. !

d. %

!5. &hich are the dependencies types"

a. 0u'' functiona' dependency

b. 3artia' dependencyc. =ri$ia' functiona' dependency

d. ('' of these



55/58

!6. 0Ds are the types of constraints that are based on______"

a. @ey

b. @ey re$isited

c. Superset )ey

d. one of these

%8. &hat is a super )ey"

a. @ey

b. @ey re$isited

c. Superset )ey

d. one of these

%1. &hich s essentia' a business prob'em not a data prob'em"

a. Data

b. Database

c. Database desi#n

d. ('' of these

%2. &hich is primari'y the resu't of a thorou#h understandin# of information about an enterprise"

a. Data

b. Database

c. Database desi#n

d. Data mode'in#

%!. Mc0adden has defined norma'i7ation in his hich boo)___________"

a. Database modern mana#ement

b. Mana#ement database of modern

c. Modern database mana#ement

d. Database mana#ement

%%. =he database desi#n pre$ents some data from bein# represented due to _______"

a. De'etion anoma'ies

b. nsertion anoma'ies

c. ;pdate anoma'y

d. one of these

%*. >o many types of insertion anoma'ies"

a. 1b. 2

c. !



56/58

d. %

%/. &ho de$e'oped the norma'i7ation process"

a. :.0. codd

b. 0.0. coddc. :.:. codd

d. one of these

%. :.0.Codd de$e'oped the norma'i7ation process in the hich ear'y"

a. 16/6

b. 168

c. 161

d. 162

%5. &hich is a bottom-up approach to database desi#n that desi#n by eaminin# the re'ationship beteen

attributes"


b. Database mode'in#

c. orma'i7ation

d. Decomposition

%6. &hich is the process of brea)in# a re'ation into mu'tip'e re'ations"



c. orma'i7ation

d. Decomposition

*8. &hich forma' method that 'ocates and ana'yses re'ation schemas on the basis of their primary, candidate

)eys, and the 0Ds that are present amon# the attributes of these schemas"



c. orma'i7ation

d. Decomposition

*1. In decomposition techni?ue of sp'ittin# a re'ation into_____ re'ation"

a. O: or MO+:

b. =&O or MO+:

c. =>+:: or MO+:

d. 0O;+ or MO+:



57/58

*2. Codd su##ested ho many forms in norma'i7ation process"

a. 1

b. 2

c. !

d. %

*!. Conse?uent'y +.Boyce-Codd oint'y 'aunched poerfu' definition for the thired norma' form ca''ed______"

a. Boyce-Codd norma' form

b. 0irst norma' form

c. Second norma' form

d. ('' of these

*%. BC0 stands for"

a. Basic -Codd norma' form

b. Bui'd -Codd norma' form

c. Boyce-Codd norma' form

d. one of these

**. &hich forms simp'ifies and ensures that there is minima' data a##re#ates and repetiti$e #roups"

a. 10

b. 20

c. !0

d. ('' of these

*/. &hich forms e$ery non-prime attribute is fu''y dependent functiona''y on the candidate )ey of a re'ationa'

schema"

a. 10

b. 20

c. !0

d. *0

*. &hich forms is re?uired hen a'thou#h 0 is present more norma'i7ation is re?uired"

a. 10

b. 20

c. !0

d. %0

*5. &hich forms has a re'ation that possesses data about an indi$idua' entity"

a. 20b. !0

c. %0



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