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SAS advance 63

Beschreibung

Quiz am SAS advance 63, erstellt von Grace Li am 26/09/2018.
Grace Li
Quiz von Grace Li, aktualisiert more than 1 year ago
Grace Li
Erstellt von Grace Li vor etwa 6 Jahre
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Zusammenfassung der Ressource

Frage 1

Frage
1. When attempting to minimize memory usage, the most efficient way to do group processing when using the MEANS procedure is to use:
Antworten
  • A. the BY statement.
  • B. GROUPBY with the NOTSORTED specification.
  • C. the CLASS statement.
  • D. multiple WHERE statements.

Frage 2

Frage
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?
Antworten
  • 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;

Frage 3

Frage
3. Given the SAS data sets: What would allow the program to successfully execute without errors?
Image:
Screen Shot 2018 09 27 At 4.02.07 Pm (binary/octet-stream)
Antworten
  • 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.

Frage 4

Frage
4. Given the SAS data set SASUSER.HIGHWAY: Which SQL clause stores the text 0-29, 30-49, 50+ in the macro variable GROUPS?
Image:
Screen Shot 2018 09 27 At 4.05.17 Pm (binary/octet-stream)
Antworten
  • A. into &GROUPS
  • B. into :GROUPS
  • C. into :GROUPS separated by ','
  • D. into &GROUPS separated by ','

Frage 5

Frage
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?
Antworten
  • 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.

Frage 6

Frage
6. The table WORK.PILOTS contains the following data: Which SQL statement could NOT generate this result?
Image:
Screen Shot 2018 09 27 At 4.08.29 Pm (binary/octet-stream)
Antworten
  • A. select Jobcode, Salary, avg(Salary) label='Avg' from WORK.PILOTS group by Jobcode order 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 ; (define variable Avg in subquery in from clause.)

Frage 7

Frage
7. A quick rule of thumb for the space required to run PROC SORT is:
Antworten
  • 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.

Frage 8

Frage
8. Multi-threaded processing for PROC SORT will affect which of these system resources?
Antworten
  • 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

Frage 9

Frage
9. Given the SAS data set WORK.TRANSACT: Which SQL statement was used?
Image:
Screen Shot 2018 09 27 At 4.27.29 Pm (binary/octet-stream)
Antworten
  • A. select rep, min(Cost+Ship) from WORK.TRANSACT order by Rep ;
  • select Rep, min(Cost,Ship) as Min from 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 ;

Frage 10

Frage
10. (%EVAL) 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?
Antworten
  • A. 0.555
  • B. 2
  • C. 1.8
  • D. 1

Frage 11

Frage
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?
Antworten
  • 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.

Frage 12

Frage
12. Which title statement would always display the current date?
Antworten
  • A. title "Today is: &sysdate.";
  • B. title "Today is: &sysdate9.";
  • C. title "Today is: &today.";
  • D. title "Today is: %sysfunc(today(),worddate.)";

Frage 13

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13. Given the SAS data sets: Which SQL procedure statement produces the same results?
Image:
Screen Shot 2018 09 28 At 2.37.45 Pm (binary/octet-stream)
Antworten
  • A. create table WORK.COMBINE as select Id, Name, Salary from WORK.ONE full join WORK.TWO on 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 ;

Frage 14

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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?
Antworten
  • 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;

Frage 15

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15. Given the SAS data set WORK.ONE: Which result set would be generated?
Image:
Screen Shot 2018 09 28 At 3.22.27 Pm (binary/octet-stream)
Antworten
  • A. JONES 280 JONES 280 SMITH 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

Frage 16

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16. Given the SAS data sets: The following output is desired: Name Fi ------- -- Lauren L Patel A Chang Z Hillier R Smith M Lauren L Patel A Which SQL set operator completes the program and generates the desired output?
Image:
Screen Shot 2018 09 28 At 3.25.39 Pm (binary/octet-stream)
Antworten
  • A. append corr
  • B. union corr
  • C. outer union corr
  • D. intersect corr

Frage 17

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17. Which of the following is an advantage of SAS views?
Antworten
  • A. SAS views can access the most current data in files that are frequently updated.
  • B. SAS views can avoid storing a SAS copy of a large data file.
  • C. SAS views can decrease programming time.
  • D. both A and B are true

Frage 18

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18. In what order does SAS search for format definitions by default?
Antworten
  • A. 1. WORK.FORMATS 2. LIBRARY.FORMATS
  • B. 1. LIBRARY.FORMATS 2. WORK.FORMATS
  • C. There is no default order, it must be defined by the user.
  • D. All user defined libraries that have a catalog named FORMATS, in alphabetic order.

Frage 19

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19. Function %UPCASE: Which WHERE statement successfully completes the program and produces a report?
Image:
Screen Shot 2018 09 28 At 3.35.00 Pm (binary/octet-stream)
Antworten
  • A. where upcase(Name)=upcase(&Value);
  • B. where upcase(Name)=%upcase(&Value);
  • C. where upcase(Name)="upcase(&Value)";
  • D. where upcase(Name)="%upcase(&Value)";

Frage 20

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20. The following SAS program is submitted: data WORK.TEMP; length A B 3 X; infile RAWDATA; input A B X; run; What is the length of variable A?
Antworten
  • A. 3
  • B. 8
  • C. WORK.TEMP is not created - X has an invalid length.
  • D. Unknown.

Frage 21

Frage
21. The following SAS program is submitted: The purpose of the FILEVAR=option on the INFILE statement is to name the variable Next, whose value:
Image:
Screen Shot 2018 09 28 At 3.55.28 Pm (binary/octet-stream)
Antworten
  • A. points to a new input file.
  • B. is output to the SAS data set WORK.NEW.
  • C. is an input SAS data set reference.
  • D. points to an aggregate storage location.

Frage 22

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22. DESCRIBE TABLE Statement Given the following partial SAS log: NOTE: SQL table SASHELP.CLASS was created like: create table SASHELP.CLASS( bufsize=4096 ) ( Name char(8), Sex char(1), Age num, Height num, Weight num ); Which SQL procedure statement generated this output?
Antworten
  • A. CONTENTS FROM SASHELP.CLASS;
  • B. CREATE FROM SASHELP.CLASS INTO LOG;
  • C. DESCRIBE TABLE SASHELP.CLASS;
  • D. VALIDATE SELECT * FROM SASHELP.CLASS;

Frage 23

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23. Given the SAS data set SASUSER.HIGHWAY: What macro variable reference completes the program to create the WORK.NOT and WORK.SERIOUS data sets?
Image:
Screen Shot 2018 09 28 At 6.51.19 Pm (binary/octet-stream)
Antworten
  • A. &Status&i
  • B. &&Status&i
  • C. &Status&Count
  • D. &&Status&Count

Frage 24

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24. The following SAS program is submitted: %let Num1=7; %let Num2=3; %let Result=%eval(&Num1/&Num2); %put &Result; What is the value of the macro variable Result when the %PUT statement executes?
Antworten
  • A. 2.3
  • B. 2
  • C. . (missing value)
  • D. 2.33333333333333

Frage 25

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25. Macros That Include Keyword Parameters: Given the SAS data set SASUSER.HIGHWAY: How many observations appear in the generated report?
Image:
Screen Shot 2018 09 28 At 7.38.18 Pm (binary/octet-stream)
Antworten
  • A. 0
  • B. 2
  • C. 3
  • D. 5

Frage 26

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26. Given the following SAS data sets: Which of the following SQL statements was most likely used to generate this result?
Image:
Screen Shot 2018 09 28 At 7.43.49 Pm (binary/octet-stream)
Antworten
  • A. select Id, sum(Expense) label='COST' from WORK.VISIT1 group by 1 union all select Id, sum(Cost) from WORK.VISIT2 group by 1 order by 1,2 ;
  • B. select id, sum(expense) as COST from WORK.VISIT1(rename=(Expense=Cost)), WORK.VISIT2 where VISIT1.Id=VISIT2.Id group by Id order by Id, Cost ;
  • C. select VISIT1.Id, sum(Cost) as Cost from WORK.VISIT1(rename=(Expense=Cost)), WORK.VISIT2 where VISIT1.Id=VISIT2.Id group by Id order by Id, Cost ;
  • D. select Id, sum(Expense) as Cost from WORK.VISIT1 group by Id outer union corr select Id, sum(Cost) from WORK.VISIT2 group by Id order by 1,2 ;

Frage 27

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27. Given the SAS data sets: What data values are stored in data set WORK.COMBINE?
Image:
Screen Shot 2018 09 28 At 7.54.25 Pm (binary/octet-stream)
Antworten

Frage 28

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28. Which of the following ARRAY statements is similar to the statement array Yr{1974:2007} Yr1974-Yr2007; and will compile without errors?
Antworten
  • A. array Yr{34} Yr1974-Yr2007;
  • B. array Yr{74:07} Yr1974-Yr2007;
  • C. array Yr{74-07} Yr1974-Yr2007;
  • D. array Yr{1974-2007} Yr1974-Yr2007;

Frage 29

Frage
29. The following program is submitted to check the variables Xa, Xb, and Xc in the SASUSER.LOOK data set: data _null_ WORK.BAD_DATA / view=WORK.BAD_DATA ; set SASUSER.LOOK(keep=Xa Xb Xc); length _Check_ $ 10 ; if Xa=. then _check_=trim(_Check_)!!" Xa" ; if Xb=. then _check_=trim(_Check_)!!" Xb" ; if Xc=. then _check_=trim(_Check_)!!" Xc" ; put Xa= Xb= Xc= _check_= ; run ; When is the PUT statement executed?
Antworten
  • A. when the code is submitted
  • B. only when the WORK.BAD_DATA view is used
  • C. both when the code is submitted and the view is used
  • D. never, the use of _null_ in a view is a syntax error

Frage 30

Frage
30. The following SAS program is submitted: %let product=merchandise; [_insert_%put_statement_] and the following message is written to the SAS log: the value is "merchandise"
Antworten
  • A. %put the value is '"'&product.'"';
  • B. %put the value is %quote(&product.);
  • C. %put the value is "&product.";
  • D. %put the value is ""&product."";

Frage 31

Frage
31. Given the SAS data sets: What data values are stored in data set WORK.COMBINE?
Image:
Screen Shot 2018 09 28 At 8.19.49 Pm (binary/octet-stream)
Antworten
  • A. An ERROR message is written to the SAS log and the data set WORK.COMBINE is not created.
  • B. SumY X Y ---- -- -- 36 A 10
  • C. SumY X Y ---- -- -- 36 A 10 . A 3 . A 14 . B 9
  • D. SumY X Y ---- -- -- 36 A 10 36 A 3 36 A 14 36 B 9

Frage 32

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32. The following SAS program is submitted: data WORK.NEW(bufno=4); set WORK.OLD(bufno=3); run; Why are the BUFNO options used?
Antworten
  • A. to reduce memory usage
  • B. to reduce CPU time usage
  • C. to reduce the amount of data read
  • D. to reduce the number of I/O operations

Frage 33

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33. Given the following program and desired results: %let Thing1=gift; %let Thing2=surprise; %let Gift1=book; %let Gift2=jewelry; %let Surprise1=dinner; %let Surprise2=movie; %let Pick=2; %let Choice=surprise; Desired %PUT Results in LOG: My favorite surprise is a movie What is the correct %PUT statement that generates the desired results?
Antworten
  • A. %put My favorite &Thing&Pick is a &&Choice&Pick;
  • B. %put My favorite &&Thing&pick is a &&&Choice&Pick;
  • C. %put My favorite &Choice&pick is a &&Thing&Pick;
  • D. %put My favorite &&Choice&pick is a &&&Thing&Pick;

Frage 34

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34. Given the SAS dataset WORK.ONE Which SQL procedure clause completes the program and generates the desired output?
Image:
Screen Shot 2018 09 28 At 8.31.11 Pm (binary/octet-stream)
Antworten
  • A. select Salary Bonus as Salary*.10
  • B. select Salary Bonus=Salary*.10 'Bonus'
  • C. select Salary, Salary*.10 label='Bonus'
  • D. select Salary, Salary*.10 column="Bonus"

Frage 35

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35. The following SAS program is submitted: options reuse=YES; data SASUSER.REALESTATE(compress=CHAR); set SASUSER.HOUSES; run; What is the effect of the reuse=YES SAS system option?
Antworten
  • A. It allows updates in place.
  • B. It tracks and recycles free space.
  • C. It allows a permanently stored SAS data set to be replaced.
  • D. It allows users to access the same SAS data set concurrently.

Frage 36

Frage
36. Which statement is true for Data step HASH objects?
Antworten
  • A. The key component must be numeric.
  • B. The data component may consist of numeric and character values.
  • C. The HASH object is created in one step and referenced in another.
  • D. The HASH object must be smaller than 2 to the 8th power bytes.

Frage 37

Frage
37. Given the SAS data sets: Which SQL set operator completes the program and generates the desired output?
Image:
Screen Shot 2018 09 28 At 8.34.37 Pm (binary/octet-stream)
Antworten
  • A. intersect corr
  • B. except all
  • C. intersect all
  • D. left except

Frage 38

Frage
38. The following SAS program is submitted: %macro CHECK(Num=4); %let Result=%eval(&Num gt 5); %put Result is &result; %mend; %check(Num=10) What is written to the SAS log?
Antworten
  • A. Result is 0
  • B. Result is 1
  • C. Result is 10 gt 5
  • D. Result is true

Frage 39

Frage
39. The following SAS program is submitted: %let Mv=shoes; %macro PRODUCT(Mv=bicycles); %let Mv=clothes; %mend; %PRODUCT(Mv=tents) %put Mv is &Mv; What is written to the SAS log?
Antworten
  • A. Mv is bicycles
  • B. Mv is clothes
  • C. Mv is shoes
  • D. Mv is tents

Frage 40

Frage
40. Which of the following SAS System options can aid in benchmarking?
Antworten
  • A. BUFSIZE= and BUFNO=
  • B. FULLSTIMER
  • C. IOBLOCKSIZE=
  • D. SYSTIMER

Frage 41

Frage
41. Given the following macro program: Which option would provide feedback in the log about the parameter values passed into this macro when invoked?
Image:
Screen Shot 2018 09 28 At 8.50.28 Pm (binary/octet-stream)
Antworten
  • A. MPRINT
  • B. MDEBUG
  • C. MLOGIC
  • D. MPARAM

Frage 42

Frage
42. The NOTSORTED option on the BY statement cannot be used with which other statement or option?
Antworten
  • A. SET
  • B. MERGE
  • C. IF FIRST.by-variable
  • D. BY GROUPFORMAT by-variable

Frage 43

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43. Given the SAS data set WORK.ONE: Rep Cost ----- ---- SMITH 200 SMITH 400 JONES 100 SMITH 600 JONES 100 Which SQL clause completes the program and generates the desired output?
Image:
Screen Shot 2018 09 28 At 11.29.15 Pm (binary/octet-stream)
Antworten
  • A. where calculated Average > (select avg(Cost) from WORK.ONE)
  • B. having Average > (select avg(Cost) from WORK.ONE)
  • C. having avg(Cost) < (select avg(Cost) from WORK.ONE)
  • D. where avg(Cost) > (select avg(Cost) from WORK.ONE)

Frage 44

Frage
44. Which dictionary table provides information on each occurrence of the variable named LastName?
Antworten
  • A. DICTIONARY.TABLES
  • B. DICTIONARY.COLUMNS
  • C. DICTIONARY.MEMBERS
  • D. DICTIONARY.VARIABLES

Frage 45

Frage
45. To create a list of unique Customer_Id values from the customer data set, which of the following techniques can be used? technique 1: proc SORT with NODUPKEY and OUT= technique 2: data step with IF FIRST.Customer_Id=1 technique 3: proc SQL with the SELECT DISTINCT statement
Antworten
  • A. only technique 1
  • B. techniques 1 and 2
  • C. techniques 1 and 3
  • D. techniques 1, 2, or 3

Frage 46

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46. Given the SAS data sets: Which SQL set operator completes the program and generates the desired output?
Image:
Screen Shot 2018 09 28 At 11.49.18 Pm (binary/octet-stream)
Antworten
  • A. intersect corr
  • B. except
  • C. intersect
  • D. left except

Frage 47

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47. The following SAS program is submitted: Which statement completes the program so that the PROC PRINT step executes on Thursday?
Image:
Screen Shot 2018 09 29 At 3.38.39 Pm (binary/octet-stream)
Antworten
  • A. if &sysday = Thursday then %do;
  • B. %if &sysday = Thursday %then %do;
  • C. %if "&sysday" = Thursday %then %do;
  • D. %if &sysday = "Thursday" %then %do;

Frage 48

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48. Given the following program and data: What is the WHERE statement that successfully completes the PROC PRINT and selects the observation for Barb?
Image:
Screen Shot 2018 09 29 At 4.33.17 Pm (binary/octet-stream)
Antworten
  • A. where Birthday=&Want;
  • B. where Birthday="&Want";
  • C. where Birthday="&Want"d;
  • D. where Birthday='&Want'd;

Frage 49

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49. Which macro statement would remove the macro variable Mv_Info from the symbol table?
Antworten
  • A. %mdelete &Mv_Info;
  • B. %symerase Mv_Info;
  • C. %symdel &Mv_Info;
  • D. %symdel Mv_Info;

Frage 50

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50. The table WORK.PILOTS contains the following data: Which select statement could NOT have produced this output?
Image:
Screen Shot 2018 09 29 At 4.38.18 Pm (binary/octet-stream)
Antworten

Frage 51

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51. The SAS data set WORK.TEMP is indexed on the variable Id: Which BY statement completes the program, creates a listing report that is grouped by Id, and completes without errors?
Antworten
  • A. by Id;
  • B. by Id grouped;
  • C. by Id descending;
  • D. by descending Id;

Frage 52

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52. To create a dataset with unique values of a given variable using a data step and the FIRST. VARIABLES and LAST.VARIABLES, it is assumed that the input dataset is:
Antworten
  • A. sorted on that variable.
  • B. indexed by that variable.
  • C. naturally in order.
  • D. any of the above A, B, or C

Frage 53

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53.The SASFILE statement requests that a SAS data set be opened and loaded into memory:
Antworten
  • A. one page at a time.
  • B. one variable at a time.
  • C. one observation at a time.
  • D. in its entirety, if possible.

Frage 54

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54. The following SAS program is submitted: %let Name1=Shoes; %let Name2=Clothes; %let Root=name; %let Suffix=2; %put &&&Root&Suffix; What is written to the SAS log?
Antworten
  • A. &Name2
  • B. Clothes
  • C. &&&Root&Suffix
  • D. WARNING: Apparent symbolic reference ROOT2 not resolved.

Frage 55

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55. Given the SAS data sets: Which join operator completes the program and generates the desired output?
Image:
Screen Shot 2018 09 29 At 4.59.56 Pm (binary/octet-stream)
Antworten
  • A. left join
  • B. right join
  • C. full join
  • D. outer join

Frage 56

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56. The SAS data set WORK.ADDRESSES contains the email addresses of The XYZ Corporation's customers in a variable named Email_Address. The following DATA step is submitted: Which statement completes the program and creates a SAS program file?
Image:
Screen Shot 2018 09 29 At 5.01.54 Pm (binary/octet-stream)
Antworten
  • A. infile "c:\email.sas";
  • B. output "c:\email.sas";
  • C. file "c:\email.sas";
  • D. None of the above.

Frage 57

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57. Which of the following is true about the COMPRESS=YES data set option?
Antworten
  • A. It uses the Ross Data Compression method to compress numeric data.
  • B. It is most effective with character data that contains repeated characters.
  • C. It is most effective with numeric data that represents large numeric values.
  • D. It is most effective with character data that contains patterns, rather than simple repetitions.

Frage 58

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Given the SAS dataset WORK.ONE: Salary ------ 200 205 . 523 Which WHERE expression completes the program and generates the desired output?
Image:
Screen Shot 2018 09 29 At 5.04.48 Pm (binary/octet-stream)
Antworten
  • A. where Salary is not .
  • B. where Salary ne missing
  • C. where Salary ne null
  • D. where Salary is not missing

Frage 59

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59. The SAS data set WORK.TEST has an index on the variable Id and the following SAS program is submitted.
Image:
Screen Shot 2018 09 29 At 5.06.11 Pm (binary/octet-stream)
Antworten
  • A. The index on Id is deleted.
  • B. The index on Id is updated as an index on Id_Code.
  • C. The index on Id is deleted and an index on Id_Code is created.
  • D. The index on Id is recreated as an index on Id_Code.

Frage 60

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Given the data set SASHELP.CLASS: Which PROC steps execute successfully?
Image:
Screen Shot 2018 09 29 At 5.08.35 Pm (binary/octet-stream)
Antworten
  • A. PROC MEANS only
  • B. PROC PRINT only
  • C. PROC MEANS and PROC PRINT
  • D. No PROC steps execute successfully

Frage 61

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61. In a data step merge, the BY variables in all data sets must have the same:
Antworten
  • A. name.
  • B. name and type.
  • C. name and length.
  • D. name, type, and length.

Frage 62

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62. Given the following macro program and invocation: Which of these choices shows the correct %PUT statement output if the program is submitted at the beginning of a new SAS session? Note that other lines may be written to the SAS log by the program, but only the %PUT output is shown here.
Image:
Screen Shot 2018 09 29 At 5.11.55 Pm (binary/octet-stream)
Antworten
  • A. ---> inside macro WORK.NEW SASHELP.CLASS ---> outside invocation WORK.NEW SASHELP.CLASS
  • B. ---> inside macro WORK.NEW SASHELP.CLASS ---> outside invocation &NEWNAME &SETNAME
  • C. ---> inside macro &NEWNAME &SETNAME ---> outside invocation WORK.NEW SASHELP.CLASS
  • D. ---> inside macro &NEWNAME &SETNAME ---> outside invocation &NEWNAME &SETNAME

Frage 63

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63. The following SAS program is submitted: Which VAR statement successfully completes the program to produce a report containing four variables?
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Antworten
  • A. var %COLS1 %COLS2;
  • B. var %COLS1-%COLS2;
  • C. var %COLS1 Weight Height;
  • D. var Weight Height %COLS1;

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如何在 Log 中輸出 global macro variables %put [blank_start]GLOBAL[blank_end]
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Antworten
  • _GLOBAL_

Frage 65

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選出 unique value of a grouped variable If [blank_start]first.model[blank_end] =1 then output=xxx (model 是這個 variable 的名字)
Antworten
  • first.model

Frage 66

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outer union [blank_start]corr[blank_end]
Antworten
  • corr

Frage 67

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A Data has 2000million observations and 300 Character variables Compress=[blank_start]YES[blank_end]
Antworten
  • YES

Frage 68

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Data Set ONE State_ID state TWO State_ID City Quit 前的最後一句: Ask: where s.state= [blank_start]“&selection”[blank_end] (注意一定要加引號)
Antworten
  • "&selection"

Frage 69

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HASH object [blank_start]HashAlpha[blank_end]
Antworten
  • HashAlpha

Frage 70

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Given 2 Data Set ONE Name Year Joyce 9 John 4 John 2 Jane 6 Thomas 8 TWO Name Age(不需要理會) Joyce John Thomas Robert Jeff The following SAS program is submitted: select Name, avg(Year) as average from WORK.ONE Except Corr WORK.TWO .............. quit; Average of [blank_start]7[blank_end]
Antworten
  • 7

Frage 71

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FCMP 填空 proc fcmp outlib=sasuser.funcs.trial; ... endsub; options [blank_start]cmplib[blank_end] =sasuser.funcs; data null; ... run;
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Antworten
  • cmplib

Frage 72

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Given data set and macro program, choose missing correct code call symputx('&Num', California)
Antworten
  • True
  • False

Frage 73

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the first part of code gives Key:valuepair definition, the variables are somekey and someAlpha, we need to fill in the hash object definition. Some.definedata( [blank_start]“ someAlpha”[blank_end] );
Antworten
  • "someAlpha"

Frage 74

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declare has Goal(); Goal.definekey(“QtrNum”); Goal.definedata([blank_start]“GoalAmount”[blank_end]); Goal.definedone();
Antworten
  • “GoalAmount”

Frage 75

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repeated need a local data set, what kind of effect does SASFILE statement has to the Global statement.
Antworten
  • reduce CPU
  • reduce I/O
  • increase memory

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考察in line view。程序大致如下: proc sql; create table forecast as select a.*, b.sales from actual a,_______ where a.dept=b.dept quit;
Antworten
  • (select avg(revenue) as average from Budegt group by 1) b
  • select ( avg(revenue) as average from Budegt group by 1) b

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%let this_year=%substr(&sysdate9,6); %let next_year=&this_year+1; %let check_year=%eval(&next_year<2016); %put two years after this year is &next_year+1; %put &check_year is &check_year; Assume system time is 01Jan2013, what is the output?
Antworten
  • two years after this year is 2013+1+1
  • check_year is 1

Frage 78

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A data set has 300,000 observations, 20 character variables, 50 numeric variables, 我们需要 其中的 5 character variables 和 7 numeric variables，which is most efficient:
Antworten
  • A. DROP= option in data step
  • B. KEEP= option in data step
  • C. KEEP= option in set statement
  • D. KEEP statement

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Array multi{1:2,2} (1,2); Do i=1 to 2; Do j=1 to 2; Output =multi{i.j}; 问 i，j 和对应 output 的值，答案:
Antworten
  • i j output 111 122 21 . 22 .
  • i j output 111 122 21. 22.

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给定一个 data set 和 SQL 代码，问输出结果一致的是: 具体不记得了，摘一段类似的， 考点在 nodupkey，注意要 drop 掉一个 variable proc sort data=retail.order_fact out=work.sorted (drop=XXX) nodupkey; by order_date; run; 需要选有nodupkey， drop掉一个variable,而且by variable 不能有descending的, 因为SQL中的order by 默认是ascending的
Antworten
  • True
  • False

Frage 81

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data company.newdata / view=company.newdata; infile <fileref>; <DATA step statements> run; 以上代码 create a data step view 之后，要在 proc means 中使用 view，问应该用哪个代码: Submit the above code and create a data step view, then we need to use this view in the PROC MEANS procedure, which one to use:
Antworten
  • A. proc means view= company.newdata;
  • B. proc means data=company.newdata / view=company.newdata;
  • C. proc means data company.newdata / view
  • D. proc means data=company.newdata

Frage 82

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Pagesize info Which of proc can check the pagesize info?
Antworten
  • A Proc Contents
  • B Proc print
  • C Proc report
  • D Proc catalog

Frage 83

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Given two format with the same name $Gender, one store in Mylib, and the other in library. Proc print data=... ; run; Using the format $Gender. From the desired output, we can tell that the format in Mylib is used. Options fmtsearch=______________; Which statement should be filled in here?
Antworten
  • A. no fmsearch needed
  • B. fmsearch=(mylib, library)
  • C. fmsearch=(library, mylib)
  • D. fmsearch=(mylib)

Frage 84

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Horizontal join set operator (i) right join Two data sets Work.One year sales 2001 800 2001 500 2003 700 Work.Two year profit 2001 100 2002 200 proc sql; select sum(profit) from one right join two on one.year=two.year; quit; What is the output?
Antworten
  • A. 100
  • B. 300
  • C. 400
  • D. 500

Frage 85

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IDXNAME=... (instruct SAS to use a specific index for where processing) IDXWHERE sas里如何指定使用某一个index,用inxname 选inxname
Antworten
  • True
  • False

Frage 86

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It is about except operator, given two data sets, Ask about the output. Choose the answer with one
Antworten
  • Answer: Charlie Omar
  • Answer: Charlie Omar

Frage 87

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Given two data sets and SQL code, ask for the output.
Antworten
  • Choose the answer with Thomas, Jones, Smith, but no Adam.
  • Besides, there is a descreasing option in the code, so the Sales need to be in decreasing order.

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哪个个 view 的命名 code 正确?
Antworten
  • data xxx/ view=xxx
  • (view 和 data set 的命名必须一样)

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Efficiency of If-then/Else and Where clauses A compressed data set has 200,000 observations, 300 variables. We need 20% of character observations, What method can minimize computer resource usage?
Antworten
  • A. If-then/Else clause
  • B. Case
  • C. Where
  • D. ...

Frage 90

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Macro variable with macro trigger signs. Output title “RECENT A&M ACTIVITY”, which macro definition should be used.
Antworten
  • A. title %sysfundc(“RECENT A&M ACTIVITY”)
  • B. title %str(“RECENT A&M ACTIVITY”);
  • C. title %nrstr(“RECENT A&M ACTIVITY”);
  • D. title %bquote(“RECENT A&M ACTIVITY);

Frage 91

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Effect on SASFILE for repeating a local data set Repeated need a local data set, what kind of effect does SASFILE statement has to the Global statement.
Antworten
  • A increase Network Bandwidth
  • B CPU increase
  • C I/O increase
  • D memory increase

Frage 92

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left join and in-line view Product Product_id Product 1 1001 2 1002 3 1003 Sales Product_id Sales 3 100 1 200 5 100 1 200 3 100 1 100 Proc sql; Select p.product s.totalsales From product as p left join ( select sum(sales) as totalsales from sales as s) on p.product_id=s.product_id; quit; What is the output?
Antworten
  • Product Totalsales 1001 500 1002 . 1003 200
  • Product Totalsales 1001 500 1002 . 1003 200

Frage 93

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Work.temp is indexed
Antworten
  • A Stops to executes as this is not in ascending order
  • B Stops to executes as this is not in descending order
  • C continue to executes without problem
  • D continue to executes but index=USE

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in-line view 给了一段 code 明确告知 in-line view 中给定的 condition 有 multiply observations satisfied the condition， 问 program 运行结果。
Antworten
  • 答案是运行出错没有结果
  • 因为 in-line view return multiple results

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in-line view 给了一段 code 明确告知运行出错没有结果，问原因 given a failed program, ask the reason of failure. Proc sql; select Jobcode, Salary, (select avg(Salary) from WORK.PILOTS order by Jobcode) as Avg from WORK.PILOTS order by ID; quit;
Antworten
  • Order By statement cannot be used inside of an in-line view.
  • There is another choice says that if using in-line view then we cannot use Order By statement. This is not true. The ORDER BY ID statement in the outside query is OK.

Frage 96

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用 sql 生成多个宏变量 Proc sql...; select column1, column2 <insert code>;
Antworten
  • into: c1varibale1-: c1varibale3 : c2varibale1-: c2varibale3
  • into: c1varibale1- c1varibale3 : c2varibale1- c2varibale3
  • into: c1varibale1: c1varibale2: c1varibale3 : c2varibale1: c2varibale2: c2varibale3
  • into : type1 -:type3 , :sale1- :sale3
  • INTO: shoesales1-: shoesales3, shoetype1-:shoetype3

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展示数据库中两个数据集的名字、储存的行数和被删除的行数 问怎么在一个 library 里挑出删除了 5%以上 observation 的 dataset 选项太长了不记得具体的了，是考 dictionary table 的
Antworten
  • select menname, nobs, delobs from dictionary.tables
  • select menname, nlobs, delobs from dictionary.tables
  • select menname, nobs, delobs from dictionary.members

Frage 98

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multiple datasets 想用 set 和 key 合并的时候，应该应用在什么样的 dataset 上 (chapter 15) mergedataset时，什么时候用multipleSETstatement最有效率
Antworten
  • A: dataset 都是 large，两个里面都有 index。
  • B: larger dataset，一个 smaller dataset，index in larger dataset
  • C: larger dataset，一个 smaller dataset，index in smaller dataset

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考点: create index 时 unique 是已经确认的，不能被更改
Antworten
  • create index 时 unique 是已经确认的
  • 不能被更改

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引用 index 时，哪个效率高(题干和选项都没记清，仅提供考点) 在 index 很复杂的情况下，在 where statement 中选择怎样 index 最有效?
Antworten
  • index include more rows
  • index unqualified more rows index that disqualify most variables
  • simple index
  • composite index

Frage 101

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给了data set 和desired output，要求选code。 发现是要生成unique value of key variable.
Antworten
  • 只有proc sort nodupkey; by var 的选项对
  • 有干扰选项proc sort nodup; by var;

Frage 102

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什么样 characteristic 的 index can only be set up with DATASET procedure.
Antworten
  • A: 关 于 index centiles 的，好像是 index centiles can be updated.
  • D:index 可以 包括 missing value
  • A. multiple variables;
  • B. unique key

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要选出 inactive_date 为 missing 时候的 observation。题目是 prol sql; Select * From dataset1 A Full join dataset2 B On A.ID = B.ID Where inactive_date is missing; 问 data dataset3; merge dataset1 (In=Ina) dataset2 (In=Inb); By ID; <insert statement>;
Antworten
  • A: where inactive_date is missing and (Ina and Inb)
  • B: where inactive_date is missing and (Ina or Inb)
  • C:想不起来了 好像是 if inactive_date is missing and (ina and inb)
  • D: If inactive_date ne .
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