SYSTEMS DESIGN
IMPLEMENTATION & MANAGEMENT
19TH EDITION CARLOS CORONEL
STEVEN MORRIS 2026 2027
VERIFIED ANSWERS ACTUAL
UPDATED PRACTICE QUESTIONS
HIGH YIELD STUDY GUIDE
DATABASE SYSTEMS EXAM
PREPARATION GRADED A+
STUDENT SUCCESS REVIEW
dbms
bygshilp_dg
AC14/AT11
DatabasegManagementgSystems
TYPICALgQUESTIONSg&gANSWERS
, , , ,
,PARTg-I
OBJECTIVEgTYPEgQUESTIONS
EachgQuestiongcarriesg2gmarks.
Choosethegcorrectgorgthegbestgalternativegingthegfollowing:
Q.1
Whichgofgthegfollowinggrelationalgalgebragoperationsgdognotgrequiregthegparticipatinggtablesgtogbegu
nion-compatible? (A)gUnion
(B)gIntersection
(C)gDifference
(D)gJoin
Ans:g(D)
Q.2
Whichgofgthegfollowinggisgnotgagpropertygofgtransactions?
(A)gAtomicity
(B)gConcurrency
(C)gIsolation
(D)gDurability
Ans:g(B)
Q.3
RelationalgAlgebragdoesgnotghave (A)gSelectiongoperator.
(C)gAggregationgoperators.
,
(B)gProjectiongoperator.
(D)gDivisiongoperator.
Ans:g(Cg)
Q.4
Checkpointsgaregagpartgof (A)gRecoverygmeasures.
(Cg)gConcurrencygmeasures.
(B)gSecuritygmeasures.
, , , ,
,(D)gAuthorizationgmeasures.
Ans:g(A)
Q.5
Treegstructuresgaregusedgtogstoregdatagin (A)gNetworkgmodel.
(B)gRelationalgmodel.
(C)gHierarchicalgmodel.
(D)gFilegbasedgsystem. Ans:g(Cg)
Q.6
Theglanguagegthatgrequiresgagusergtogspecifygthegdatagtogbegretrievedgwithoutgspecifyinggexactlygh
owgtoggetgitgis
(A)gProceduralgDML.
(B)gNon-ProceduralgDML.
(C)gProceduralgDDL.
(D)gNon-ProceduralgDDL.
Ans:g(B)
Q.7
Precedenceggraphsghelpgtogfindga
1
, , , ,
, ,
AC14/AT11
DatabasegManagementgSystems
(A)gSerializablegschedule.
(C)gDeadlockgfreegschedule.
(B)gRecoverablegschedule.
(D)gCascadelessgschedule.
Ans:g(A)
Q.8
Thegrulegthatgagvaluegofgagforeigngkeygmustgappeargasgagvaluegofgsomegspecificgtablegisgcalledga
(A)gReferentialgconstraint.
(B)gIndex.
(C)gIntegritygconstraint.
(D)gFunctionalgdependency.
Ans:g(A)gThegrulegthatgagvaluegofgagforeigngkeygmustgappeargasgagvaluegofgsomegspecificgtablegisgca
lledgagreferentialgconstraint.g(Referentialgintegritygconstraintgisgconcernedgwithgforeigngkey)
Q.9
ThegclausegingSQLgthatgspecifiesgthatgthegquerygresultgshouldgbegsortedgingascendinggorgdescendi
nggordergbasedgongthegvaluesgofgonegorgmoregcolumnsgisg(A)gView
(B)gOrdergby
(C)gGroupgby (D)gHaving
Ans:g(B)gThegclausegingSQLgthatgspecifiesgthatgthegquerygresultgshouldgbegsortedgingascendinggorgd
escendinggordergbasedgongthegvaluesgofgonegorgmoregcolumnsgisgORDERgBY.g(ORDERgBYgclaus
egisgusedgtogarrangegthegresultgofgthegSELECTgstatement)
Q.10
Whatgisgagdisjointglessgconstraint?
(A)gItgrequiresgthatgangentitygbelongsgtognogmoregthangoneglevelgentitygset.g(B)gThegsamegentitygma
ygbelonggtogmoregthangoneglevel.
(C)gThegdatabasegmustgcontaingangunmatchedgforeigngkeygvalue.g(D)gAngentitygcangbegjoinedgwithg
anothergentitygingthegsameglevelgentitygset.gAns:g(A)gDisjointglessgconstraintgrequiresgthatgangentityg
belongsgtognogmoregthangoneglevelgentitygset.g(Disjointglessgconstraintgmeansgthatgangentitygcangbe
,
agmembergofgatgmostgonegofgthegsubclassesgofgthegspecialization.)
g
Q.11
Accordinggtogtheglevelsgofgabstraction,gthegschemagatgthegintermediateglevelgisgcalledg(A)gLogicalgs
chema.
, , ,,