CBSE Previous Year Solved Papers
Class 12 Computer Science Delhi 2011
•CBSE Sample Papers
•CBSE Sample Papers for Class 12 Computer Science
Time allowed : 3 hours
Maximum Marks: 70
General Instructions :
1. There are a total of 26 questions and five sections in the question
paper, All questions are compulsory.
2. Section A contains question number 1 to 5, Very Short Answer type
questions of one mark each.
3. Section B contains question number 6 to 10, Short Answer type I
questions of two marks each.
4. Section C contains question number 11 to 22, Short Answer type II
questions of three marks each.
5. Section D contains question number 23, Value Based Question of
four marks.
6. Section E contains question number 24 to 26, Long Answer type
questions of five marks each.
7. There is no overall choice in the question paper, however, an internal
choice is provided in one question of two marks, one question of
three marks and all three questions of five marks. An examined is to
attempt any one of the questions out of two given in the question
paper with the same question number.
Question.1. (a) What is the difference between Local Variable and Global
Variable ? Also, give suitable C++ code to illustrate both.
Answer:
Local Variables : Local variables are those variables which are declared within a
function or a compound statement and these variables can only be used within
that function/scope. Global Variables : Global variables are those variables which
are not declared within any function or scope. So, these variables can be
accessed by any function of the program.
Example:
