CS201 current paper (May 2010)

6 to 7 MCQs came form past papers

1 or 2 short questions came from past papers.

Some of the short questions that I remember were:

1. What is the difference between pre-increment and post-increment operator
2. One major use of pointer
3. If an array has elements 2^n, then what would be the maximum number of iterations required to search by binary and linear search? (I don't remember the exact statement of the question) (answer is on page # 118)
4. Write the procedure of data insertion in middle of the files by Merge Method practiced in older systems? (answer is given in page # 218, in handouts)
5. Functions used to read/write more than a single character or a single line while using Files? (read chapter # 19, on page 221 i think this concept has been discussed)

In the long question, a program was given and we were required to point out the compilation errors and correct them.
It was easy.


....


Q1: Write down the general syntax of switch statement. 2 Marks

Q2: Why we close a file after use? 2 Marks

Q3: When a pointer is incremented then how many bytes will it move to change its address? 
2 Marks

Q4: If there are 2n element in an array then what would be the number of iterations required to search a number using binary and linear search? 3 Marks

Q5: write down the functions definition if we want to pass the argument to a function by reference without changing the values stored at address. 5 Marks

Q6: What will be the output of the following code segment 5 Marks

, int x= 6;
int y;
x = x << 1;
y = x >> 1;
cout << “x = ” << x << “\n”;
cout << “y = ” << y;
.....

6 mcqs the


which bit is used as a single bits? 2 marks
write one major use of pointer? 2 marks
write general syntax of function? 2marks
what is file handing and it is used in c++? 3 marks
program from pointer or function ? 5 marks
what is file,and explain the concept of file handling? 5 marks

.........

16 MCQs. 80% from past papers. 
difference between random access ans sequential access file? (10 marks)
which bit is used as a single bits? 2 marks
what is file handing?(3 marks)
aik program ki output btani thi.(3 marks)
aik program bana tha jis ki vlue n ho oor usy matrix ma banan tha smthing like that. (ya mjy nai ata tha) [10 marks]

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