Friday, 6 February 2015

advanced sas interview questions and answers (Page 5)

Below are some important SAS interview questions which are asked in most MNC company interviews for beginners or professionals.

21) What is option year cuttoff in sas?
by this option we can set the year span like
Options yearcutoff=2050
so it sets year from 2050 to 2049 ..

22) How to add a number to a macro variable?
Use %eval to do simple calculation for macro variables.
data _null_;
%let a = 1;
%let b = %eval(&a+1);
%put a=&a b=&b;

23) What has been your most common programming mistake?
I remember Missing semicolon and not checking log after submitting program, Not using debugging techniques and not using Fsview option vigorously are my common programming errors I made when I started learning SAS and in my initial projects.

24) Have you ever had to follow SOPs or programming guidelines?
SOP describes the process to assure that standard coding activities, which produce tables, listings and graphs, functions and/or edit checks, are conducted in accordance with industry standards are appropriately documented.

25) Name several ways to achieve efficiency in your program. Explain trade-offs.
Efficiency and performance strategies can be classified into 5 different areas.
· CPU time
· Data Storage
· Elapsed time
· Input/Output
· Memory
CPU Time and Elapsed Time- Base line measurements.
More Questions & Answers :-
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