SAS Advanced Programming Exam for SAS 9 Successful candidates for the SAS Certified Advanced Programmer credential should have experience in programming
... [Show More] and data management using SAS. They will be k nowledgeable in using advanced DATA step programming statements and efficiency techniques to solve complex problems, writing and interpreting SAS SQL code, and creating and using the SAS MACRO facility. Candidates should also be familiar with the enhancements and new functionality that are available in SAS 9. Exam Details 65 multiple-choice questions Must answer 42 correctly to pass 2 hours to complete exam Prometric Exam ID - (A00-212) Test Content Accessing Data Using SQL Generate detail reports by working with a single table or joining tables using PROC SQL and the appropriate options Generate summary reports by working with a single table or joining tables using PROC SQL and the appropriate options Construct subqueries within a PROC SQL step Compare solving a problem using the SQL procedure versus using traditional SAS programming techniques Access Dictionary Tables using the SQL procedure Demonstrate advanced PROC SQL skills by creating and updating tables, updating data values, working with indexes using the macro interface/creating macro variables with SQL, defining integrity constraints, SQL views and SET operators Successful candidates should have experience in programming and data management using SAS 9 and should be able to use advanced DATA step programming statements use efficiency techniques to solve complex problems write and interpret SAS SQL code create and use the SAS MACRO facility Page 3Macro Processing Creating and using user-defined and automatic macro variables within the SAS Macro Language Automate programs by defining and calling macros using the SAS Macro Language Understand the use of macro functions Recognize various system options that are available for macro debugging and displaying values of user-defined and automatic macro variables in the SAS log Advanced Programming Techniques Demonstrate advanced data set processing techniques such as updating master data sets, transposing data, combining/merging data, sampling data, using generation data sets, integrity constraints and audit trails Reduce the space required to store SAS data sets and numeric variables within SAS data sets by using compression techniques, length statements or DATA step views Develop efficient programs by using advanced programming techniques such as permanent formats and array processing Use SAS System options and SAS data set options for controlling memory usage Control the processing of variables and observations in the DATA step Create sorted or indexed data in order to avoid unnecessary sorts, eliminate duplicate data and to provide more efficient data access and retrieval Use PROC DATASETS to demonstrate advanced programming skills (e.g. renaming columns, displaying metadata, creating indexes, creating integrity constraints, creating audit trails) Page 463 Mark Items for Review Item 1 When attempting to minimize memory usage, the most efficient way to do group processing when using the MEANS procedure is to use: A. the BY statement. B. GROUPBY with the NOTSORTED specification. C. the CLASS statement. D. multiple WHERE statements. A Item 2 The SAS data set WORK.CHECK has a variable named Id_Code in it. Which SQL statement would create an index on this variable? A. create index Id_Code on WORK.CHECK; B. create index(Id_Code) on WORK.CHECK; C. make index=Id_Code from WORK.CHECK; D. define index(Id_Code) in WORK.CHECK; A Item 3 Given the SAS data sets: WORK.EMPLOYEE WORK.NEWEMPLOYEE Name Dept Names Salary -------- ----- -------- ------ Alan Sales Michelle 50000 Michelle Sales Paresh 60000 A SAS program is submitted and the following is written to the SAS log: 101 proc sql; 102 select dept, name 103 from WORK.EMPLOYEE 104 where name=(select names from newemployee where salary > 40000) ERROR: Subquery evaluated to more than one row. 105 ; 106 quit; What would allow the program to successfully execute without errors? A. Replace the where clause with:where EMPLOYEE.Name=(select Names delimited with‘,' from WORK.NEWEMPLOYEE where Salary > 40000); B. Replace line 104 with: where EMPLOYEE.Name =ANY (select Names separated with‘,' from WORK.NEWEMPLOYEE where Salary > 40000); C. Replace the equal sign with the IN operator. D. Qualify the column names with the table names. C Item 4 Given the SAS data set SASUSER.HIGHWAY: Steering Seatbelt Speed Status Count -------- -------- ----- ------- ----- absent No 0-29 serious 31 absent No 0-29 not 1419 absent No 30-49 serious 191 absent no 30-49 not 2004 absent no 50+ serious 216 The following SAS program is submitted: proc sql noprint; select distinct Speed [_insert_SQL_clause_] from SASUSER.HIGHWAY ; quit; title1 “Speed values represented are: &GROUPS”; proc print data=SASUSER.HIGHWAY; run; Which SQL clause stores the text 0-29,30-49,50+ in the macro variable GROUPS? A. into &GROUPS B. into :GROUPS C. into :GROUPS separated by ‘,' D. into &GROUPS separated by ‘,’ C *Item 5 The SAS data set WORK.CHECK has an index on the variable Code and the following SAS program is submitted. proc sort data=WORK.CHECK;by Code; run; Which describes the result of submitting the SAS program? A. The index on Code is deleted. B. The index on Code is updated. C. The index on Code is uneffected. D. The sort does not execute. D (Note: You can sort an indexed data file only if you direct the output of the SORT procedure to a new data file so that the original data file remains unchanged. If you sort an indexed data file with the FORCE option, the index file is deleted.) Item 6 The table WORK.PILOTS contains the following data: WORK.PILOTS Id Name Jobcode Salary --- ------ ------- ------ 001 Albert PT1 50000 002 Brenda PT1 70000 003 Carl PT1 60000 004 Donna PT2 80000 005 Edward PT2 90000 006 Flora PT3 100000 The data set was summarized to include average salary based on jobcode: Jobcode Salary Avg ------- ------ ----- PT1 50000 60000 PT1 70000 60000 PT1 60000 60000 PT2 80000 85000 PT2 90000 85000 PT3 100000 100000 Which SQL statement could NOT generate this result? A. select Jobcode, Salary, avg(Salary) label=‘Avg' from WORK.PILOTS group by Jobcodeorder by Id ; B. select Jobcode, Salary, (select avg(Salary) from WORK.PILOTS as P1 where P1.Jobcode=P2.Jobcode) as Avg from WORK.PILOTS as P2 order by Id ; C. select Jobcode, Salary, (select avg(Salary) from WORK.PILOTS group by Jobcode) as Avg from WORK.PILOTS order by Id ; D. select Jobcode, Salary, Avg from WORK.PILOTS, (select Jobcode as Jc, avg(Salary) as Avg from WORK.PILOTS group by 1) where Jobcode=Jc order by Id ; C Item 7A quick rule of thumb for the space required to run PROC SORT is: A. two times the size of the SAS data set being sorted. B. three times the size of the SAS data set being sorted. C. four times the size of the SAS data set being sorted. D. five times the size of the SAS data set being sorted. C Item 8 Multi-threaded processing for PROC SORT will effect which of these system resources? A. CPU time will decrease, wall clock time will decrease B. CPU time will increase, wall clock time will decrease C. CPU time will decrease, wall clock time will increase D. CPU time will increase, wall clock time will increase B Item 9 Given the SAS data set WORK.TRANSACT: Rep Cost Ship ----- ---- ----- SMITH 200 50 SMITH 400 20 JONES 100 10 SMITH 600 100 JONES 100 5 The following output is desired: Rep ----- ---- JONES 105 SMITH 250 Which SQL statement was used? A. select rep, min(Cost+Ship) from WORK.TRANSACT order by Rep ; B. select Rep, min(Cost,Ship) as Minfrom WORK.TRANSACT summary by Rep order by Rep ; C. select Rep, min(Cost,Ship) from WORK.TRANSACT group by Rep order by Rep ; D. select Rep, min(Cost+Ship) from WORK.TRANSACT group by Rep order by Rep ; D Item 10 The following SAS program is submitted: %let Value=9; %let Add=5; %let Newval=%eval(&Value/&Add); %put &Newval; What is the value of the macro variable Newval when the %PUT statement executes? A. 0.555 B. 2 C. 1.8 D. 1 D Item 11 The following SAS code is submitted: data WORK.TEMP WORK.ERRORS / view=WORK.TEMP; infile RAWDATA; input Xa Xb Xc; if Xa=. then output WORK.ERRORS; else output WORK.TEMP;run; Which of the following is true of the WORK.ERRORS data set? A. The data set is created when the DATA step is submitted. B. The data set is created when the view TEMP is used in another SAS step. C. The data set is not created because the DATA statement contains a syntax error. D. The descriptor portion of WORK.ERRORS is created when the DATA step is submitted. B Item 12 Which title statement would always display the current date? A. title “Today is: &sysdate.”; B. title “Today is: &sysdate9.”; C. title “Today is: &today.”; D. title “Today is: %sysfunc(today(),worddate.)”; D Item 13 Given the SAS data sets: WORK.ONE WORK.TWO Id Name Id Salary --- ------ ---- ------ 112 Smith 243 150000 243 Wei 355 45000 457 Jones 523 75000 The following SAS program is submitted: data WORK.COMBINE; merge WORK.ONE WORK.TWO; by Id; run; Which SQL procedure statement produces the same results? A. create table WORK.COMBINE as select Id, Name, Salary from WORK.ONE full join WORK.TWOon ONE.Id=TWO.Id ; B. create table WORK.COMBINE as select coalesce(ONE.Id, TWO.Id) as Id, Name, Salary from WORK.ONE, WORK.TWO where ONE.Id=TWO.Id ; C. create table WORK.COMBINE as select coalesce(ONE.Id, TWO.Id) as Id, Name, Salary from WORK.ONE full join WORK.TWO on ONE.Id=TWO.Id order by Id ; D. create table WORK.COMBINE as select coalesce(ONE.Id, TWO.Id) as Id, Name, Salary from WORK.ONE, WORK.TWO where ONE.Id=TWO.Id order by ONE.Id ; C Item 14 The following SAS program is submitted: proc contents data=TESTDATA.ONE;run; Which SQL procedure step produces similar information about the column attributes of TESTDATA.ONE? A. proc sql; contents from TESTDATA.ONE; quit; B. proc sql; describe from TESTDATA.ONE; quit; C. proc sql; contents table TESTDATA.ONE; quit; D. proc sql; describe table TESTDATA.ONE; quit; D Item 15 Given the SAS data set WORK.ONE: Rep Cost --------- ---- SMITH 200 SMITH 400 JONES 100 SMITH 600 JONES 100 The following SAS program is submitted; proc sql; select Rep, avg(Cost) from WORK.ONE order by Rep ; quit; Which result set would be generated? A. JONES 280 JONES 280SMITH 280 SMITH 280 SMITH 280 B. JONES 600 SMITH 100 C. JONES 280 SMITH 280 D. JONES 100 JONES 100 SMITH 600 SMITH 600 SMITH 600 A Item 16 Given the SAS data sets: WORK.MATH1A WORK.MATH1B Name Fi Name Fi ------- -- ------ -- Lauren L Smith M Patel A Lauren L Chang Z Patel A Hillier R The following SAS program is submitted: proc sql; select * from WORK.MATH1A [Show Less]