http://www.alsenosy.com | http://www.professionalengineers.us78.Answer: B.
PMBOK® Guide, page 185 , Section 6. 2. 2. 3
Rolling WavePlanning
Rollingwaveplanningisaniterativeplanningtechniqueinwhichtheworktobeaccomplishedinthe
neartermisplannedindetail,whileworkfurtherinthefutureisplannedatahigherlevel.Itisa
formofprogressiveelaborationapplicabletoworkpackages,planningpackages,andrelease planning
whenusinganagileorwaterfall approach.Therefore,workcanexistat variouslevelsof detail
dependingonwhereitisintheprojectlifecycle.Duringearlystrategicplanningwhen informationis
lessdefined,workpackagesmaybedecomposedtotheknownlevelofdetail.Asmore isknown
abouttheupcomingeventsinthenearterm,workpackagescanbedecomposedinto activities.
79.Answer: A.
PMBOK® Guide, page 189 , Section 6. 3. 2. 1
Precedence Diagramming Method
Theprecedencediagrammingmethod(PDM)isatechniqueusedforconstructingaschedulemodel
inwhich activities arerepresentedby nodes and aregraphicallylinked by one ormore logical
relationshipstoshowthesequenceinwhichtheactivitiesaretobeperformed.
80.Answer: D.
PMBOK® Guide, pages 195 – 196 , Section 6. 4
Estimate Activity Durations
Estimateactivitydurationsusesinformationfromthescopeofwork,requiredresourcetypesorskill
levels,estimatedresourcequantities,andresourcecalendars.Otherfactorsthatmayinfluencethe
durationestimatesincludeconstraintsimposedontheduration,effortinvolved,ortypeofresources
(e.g.,fixedduration,fixedeffortorwork,fixednumberofresources),aswellastheschedulenetwork
analysistechniqueused.Theinputsfortheestimatesofdurationoriginatefromtheperson orgroup
ontheprojectteamwhoismostfamiliarwiththenatureoftheworkinthespecificactivity. The
durationestimateisprogressivelyelaborated,andtheprocessconsidersthequalityand availabilityof
theinputdata.Forexample,asmoredetailedandprecisedata areavailableabout the project
engineeringanddesignwork,theaccuracyandqualityofthedurationestimatesimprove.
Thespecificmethodforanalyzingactivitydurationdoesnotimpacttheduration.
81.Answer: A.
PMBOK®Guide,page 215 ,Section 6. 5. 2. 6
ScheduleCompression
Schedulecompressiontechniquesareusedtoshortenoracceleratethescheduledurationwithout
reducingtheprojectscopeinordertomeetscheduleconstraints,imposeddates,orotherschedule
objectives.Ahelpfultechniqueisthenegativefloatanalysis.Thecriticalpathistheonewiththe least
float. Due toviolating aconstraintor imposed date,the total float canbecomenegative. Two
approachesarecrashingandfasttracking: