SASbase考试必备70真题.docx
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SASbase考试必备70真题
followingSASprogramissubmitted:
data;
set;
byDepartmentGender;
ifFirst.<_insert_code_>thenPayroll=0;
Payroll+Wagerate;
ifLast.<_insert_code_>;
run;
TheSASdatasetiscurrentlyorderedbyGenderwithinDepartment.
WhichinsertedcodewillaccumulatesubtotalsforeachGenderwithinDepartment?
A.Gender
B.Department
C.GenderDepartment
D.DepartmentGender
Answer:
A
-------------------------------------
thefollowingrawdatarecordsin:
----|----10---|----20---|----30
John,FEB,13,25,14,27,Final
John,MAR,26,17,29,11,23,Current
Tina,FEB,15,18,12,13,Final
Tina,MAR,29,14,19,27,20,Current
Thefollowingoutputisdesired:
ObsNameMonthStatusWeek1Week2Week3Week4Week5
1JohnFEBFinal$13$25$14$27.
2JohnMARCurrent$26$17$29$11$23
3TinaFEBFinal$15$18$12$13.
4TinaMARCurrent$29$14$19$27$20
WhichSASprogramcorrectlyproducesthedesiredoutput?
A.
data;
lengthName$4Month$3Status$7;
infile''dsd;
inputName$Month$;
ifMonth='FEB'theninputWeek1Week2Week3Week4Status$;
elseifMonth='MAR'theninputWeek1Week2Week3Week4Week5Status$;
formatWeek1-Week5dollar6.;
run;
procprintdata=;
run;
B.
data;
lengthName$4Month$3Status$7;
infile''dlm=','missover;
inputName$Month$;
ifMonth='FEB'theninputWeek1Week2Week3Week4Status$;
elseifMonth='MAR'theninputWeek1Week2Week3Week4Week5Status$;
formatWeek1-Week5dollar6.;
run;
procprintdata=;
run;
C.
data;
lengthName$4Month$3Status$7;
infile''dlm=',';
inputName$Month$@;
ifMonth='FEB'theninputWeek1Week2Week3Week4Status$;
elseifMonth='MAR'theninputWeek1Week2Week3Week4Week5Status$;
formatWeek1-Week5dollar6.;
run;
procprintdata=;
run;
D.
data;
lengthName$4Month$3Status$7;
infile''dsd@;
inputName$Month$;
ifMonth='FEB'theninputWeek1Week2Week3Week4Status$;
elseifMonth='MAR'theninputWeek1Week2Week3Week4Week5Status$;
formatWeek1-Week5dollar6.;
run;
procprintdata=;
run;
Answer:
C
-------------------------------------
Excelworkbookcontainsthefollowingfourworksheets:
EAST
WEST
NORTH
SOUTH
Thefollowingprogramissubmitted:
libnameMYXLS'';
WhichPROCPRINTstepcorrectlydisplaystheNORTHworksheet?
A.procprintdata=;run;
B.procprintdata=$;run;
C.procprintdata=MYXLS.'NORTH'e;run;
D.procprintdata=MYXLS.'NORTH$'n;run;
Answer:
D
-------------------------------------
followingSASprogramissubmitted:
data;
Day="01";
Yr=1960;
X=mdy（Day,01,Yr）;
run;
WhatisthevalueofthevariableX?
A.thenumericvalue0
B.thecharactervalue"01011960"
C.amissingvalueduetosyntaxerrors
D.thestepwillnotcompilebecauseofthecharacterargumentinthemdyfunction.
Answer:
A
-------------------------------------
statementspecifiesthatrecords1through10aretobereadfromtherawdatafile?
A.infile''1-10;
B.input''stop@10;
C.infile''obs=10;
D.input''stop=10;
Answer:
C
-------------------------------------
aSASprogramissubmitted,thefollowingiswrittentotheSASlog:
101data;
102set（keep=productmonthnum_SoldCost）;
103ifMonth='Jan'thenoutput;
104Sales=Cost*Num_Sold;
105keep=ProductSales;
-----
22
ERROR22-322:
Syntaxerror,expectingoneofthefollowing:
!
!
!
&,*,**,+,-,,<=,<>,=,>,>=,
AND,EQ,GE,GT,IN,LE,LT,MAX,MIN,NE,NG,NL,NOTIN,OR,^=,|,||,~=.
106run;
WhatchangesshouldbemadetotheKEEPstatementtocorrecttheerrorsintheLOG?
A.keep=（ProductSales）;
B.keepProduct,Sales;
C.keep=Product,Sales;
D.keepProductSales;
Answer:
D
-------------------------------------
ofthefollowingchoicesisanunacceptableODSdestinationforproducingoutputthatcanbeviewedinMicrosoftExcel?
A.MSOFFICE2K
B.EXCELXP
C.CSVALL
D.WINXP
Answer:
D
-------------------------------------
SASdatasetnamedcontains10observationsforeachdepartment,andiscurrentlyorderedbyDepartment.ThefollowingSASprogramissubmitted:
data;
set（keep=DepartmentMonthlyWageRate）;
byDepartment;
if=1thenPayroll=0;
Payroll+（MonthlyWageRate*12）;
if=1;
run;
Whichstatementistrue?
A.ThebystatementintheDATAstepcausesasyntaxerror.
B.ThestatementPayroll+（MonthlyWageRate*12）;inthedatastepcausesasyntaxerror.
C.ThevaluesofthevariablePayrollrepresentthemonthlytotalforeachdepartmentinthedataset.
D.ThevaluesofthevariablePayrollrepresentamonthlytotalforallvaluesofWAGERATEinthedataset.
Answer:
C
-------------------------------------
followingSASprogramissubmitted:
data;
Cost='$20,000';
Discount=.10*Cost;
run;
Whatistheresult?
A.ThevalueofthevariableDiscountintheoutputdatasetismessagesarewrittentotheSASlog.
B.ThevalueofthevariableDiscountintheoutputdatasetisnotethatconversionhastakenplaceiswrittentotheSASlog.
C.ThevalueofthevariableDiscountintheoutputdatasetismissing.AnoteintheSASlogreferstoinvalidnumericdata.
D.ThevariableDiscountintheoutputdatasetissettomessagesarewrittentotheSASlog.
Answer:
C因为有一个$符号
-------------------------------------
theexistingSASprogram:
procformat;
valueagegrp
low-12='Pre-Teen'
13-high='Teen';
run;
procmeansdata=;
varHeight;
classSexAge;
formatAgeagegrp.;
run;
Whichstatementintheprocmeansstepneedstobemodifiedoraddedtogeneratethefollowingresults:
AnalysisVariable:
Height
N
SexAgeObsMinimumMaximumMean
------------------------------------------------------------------
FPre-Teen3
Teen6
MPre-Teen4
Teen6
--------------------------------------------------------------------
A.varHeight/nobsminmaxmeanmaxdec=1;
B.procmeansdata=maxdec=1;
C.procmeansdata=minmaxmeanmaxdec=1;
D.outputnobsminmaxmeanmaxdec=1;
Answer:
C
-------------------------------------
Excelworkbookcontainsthefollowingthreeworksheets:
JAN
FEB
MAR
WhichstatementcorrectlyassignsalibraryreferencetotheExcelworkbook?
A.libnameqtrdata'';
B.libname''sheets=3;
C.libnamejanfebmar'';
D.libnamemydata''=（jan,feb,mar）;
Answer:
A
-------------------------------------
followingSASprogramissubmitted:
data;
set（keep=JanptFebptMarpt）;
arrayDiff{3}Difcount1-Difcount3;
arrayPatients{3}JanptFebptMarpt;
run;
Whatnewvariablesarecreated?
A.Difcount1,Difcount2andDifcount3
B.Diff1,Diff2andDiff3
C.Janpt,Febpt,andMarpt
D.Patients1,Patients2andPatients3
Answer:
A
-------------------------------------
ofthefollowingprogramscorrectlyinvokestheDATAStepDebugger:
A.
datadebug;
set;
State=scan（cityState,2,''）;
ifState='NE'thendescription='Central';
run;
B.
datadebugger;
set;
State=scan（cityState,2,''）;
ifState='NE'thendescription='Central';
run;
C.
data/debug;
set;
State=scan（cityState,2,''）;
ifState='NE'thendescription='Central';
run;
D.
data/debugger;
set;
State=scan（cityState,2,''）;
ifState='NE'thendescription='Central';
run;
Answer:
c
-------------------------------------
statementistrueconcerningtheSASautomaticvariable_ERROR_?
A.Itcannotbeusedinanif/thencondition.
B.Itcannotbeusedinanassignmentstatement.
C.Itcanbeputintoakeepstatementorkeep=option.
D.Itisautomaticallydropped.
Answer:
D
-------------------------------------
followingSASprogramissubmitted:
data;
X='04jul2005'd;
DayOfMonth=day（x）;
MonthOfYear=month（x）;
Year=year（x）;
run;
WhattypesofvariablesareDayOfMonth,MonthOfYear,andYear?
A.DayOfMonth,Year,andMonthOfYeararecharacter.
B.DayOfMonth,Year,andMonthOfYeararenumeric.
C.DayOfMonthandYeararenumeric.MonthOfYearischaracter.
D.DayOfMonth,Year,andMonthOfYeararedatevalues.
Answer:
B
-------------------------------------
thefollowingdatastep:
data;
infiledatalines;
inputCity$20.;
ifCity='Tulsa'then
State='OK';
Region='Central';
ifCity='LosAngeles'then
State='CA';
Region='Western';
datalines;
Tulsa
LosAngeles
Bangor
;
run;
Afterdatastepexecution,whatwilldatasetcontain?
A.
CityStateRegion
-----------------------
TulsaOKWestern
LosAngelesCAWestern
BangorWestern
B.
CityStateRegion
-----------------------
TulsaOKWestern
LosAngelesCAWestern
Bangor
C.
CityStateRegion
-----------------------
TulsaOKCentral
LosAngelesCAWestern
BangorWestern
D.
CityStateRegion
-----------------------
TulsaOKCentral
LosCAWestern
Bangor
Answer:
A
-------------------------------------
statementdescribesacharacteristicoftheSASautomaticvariable_ERROR_?
A.The_ERROR_variablemaintainsacountofthenumberofdataerrorsinaDATAstep.
B.The_ERROR_variableisaddedtotheprogramdatavectorandbecomespartofthedatasetbeingcreated.
C.The_ERROR_variablecanbeusedinexpressionsintheDATAstep.
D.The_ERROR_variablecontainsthenumberoftheobservationthatcausedthedataerror.
Answer:
C
-------------------------------------
SASdatasetcontainsanumericvariablenamedNumandacharactervariablenamedChar:
NumChar
-------
123
323
177
ThefollowingSASprogramissubmitted:
procprintdata
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