SAS基础薄弱,刚刚91%在北美考过了SAS BASE
考前只看过70题,根据经验来看,只是为了考证的话只看70题真的就够了,选项顺序会变,当然如果能结合crackman的网站看就更好了,有有助于理解记忆
我是在考前把网上的版本答案删掉,打印出来反复做的模拟题,但是考试的时候还是答错了一道原题,所以70题一定要反复看(70题无答案模考版免费分享给大家,其中添加了以前没有的第9题)
考试题目有62道单选两道填空(填数字)
下面分享一些我遇到的题目:
一,70题两道答案更正
29.The following SAS program issumbitted:
data WORK.INFO;
infile'DATAFILE.TXT';
input @1 Company 20.@25State2.@;
if State=' ' theninput @30 Year;
else input @30City Year;
inputNumEmployees;
run;
How many raw data records areread duringeach iteration of the DATA step?
A. 1
B. 2
C. 3
D. 4
原始答案A, 正确答案是B.
45.The following SAS program issubmitted:
ods csvall file='c:\test.cvs';
proc print data=WORK.ONE;
var Name ScoreGrade;
by IdNumber;
run;
ods csvall close;
What is produced as output?
A. A file namedtest.cvs that can only beopened in Excel.
B. A text filenamed test.cvs that can beopened in Excel or in any text editor.
C. A text filenamed test.cvs that canonly be opened in a text editor.
D. A file namedtest.cvs that can only beopened by SAS.
原始答案C, 正确答案B
二,考到70题文件中缺少的一道题(crackman网站上有)
9. data course;
input exam;
datalines;
50.1
;
run;
proc format;
value score 1 – 50 = ‘Fail’
51 – 100 =‘Pass’;
run;
proc report data =course nowd;
column exam;
define exam / display format=score.;
run;
What is the value for exam?
A. Fail
B. Pass
C. 50.1
D. No output
正确答案: C
三,70题的变形
原题为:
44. The following SAS program is submitted:
data ONE TWO SASUSER.TWO
set SASUSER.ONE;
run;
Assuming that SASUSER.ONE exists, how many temporary and
permanent SAS data sets are created?
A. 2 temporary and 1 permanent SAS data sets are
created
B. 3 temporary and 2 permanent SAS data sets arecreated
C. 2 temporary and 2 permanent SAS data sets arecreated
D. there is an error and no new data sets are created
Answer: D
考试题目为
The following SAS program is
submitted:
data ONE TWO SASUSER.TWO;
set SASUSER.ONE;
run;
答案是A
四,70题没有包括的题目:
1, 问variable length是多少?
先给出num length是10, 然后在data step中设length是15, 再用format把variable变成length 20, 问variable length是多少?
这里要区分format概念和length概念,format不改变其length。
2, 问你以下4个选项有几个是符合规则的
work. one
two
_two
2_two
注意libref is 1 to 8 characters long, beginswith a letter or underscore, and contains only letters, numbers, orunderscores.