Center for Development of Advanced Computing C & C++ Questions,C-DAC Previous Year Question paper

Center for Development of Advanced Computing

C & C++ Questions
C-DAC Previous Year Question paper

Question 1:The break statement is used to exit from

• a DO loop
• a FOR loop
• a SWITCH statement
• all of above
• none of above

Question 2:In which statements, does a CONTINUE statement cause the control to go directly to the test condition and then continue the looping process?

• FOR and WHILE
• WHILE and IF-ELSE
• DO-WHILE and IF-ELSE
• While and DO-WHILE
• None of above

Question 3:The advantage of a SWITCH statement over an ELSE-IF statement

• A default condition can be used in the SWITCH
• The SWITCH is easier to understand
• Several different condition can cause one set of statements to be executed in a SWITCH
• Several different statements can be executed in a SWITCH
• None of above

Question No 4:The comma operator (,) is primarily used in conjunction with

• FOR statement
• IF-ELSE statement
• DO-While statement
• All of above
• None of above

Question No 5:The GOTO statement is used to

• Permit two different expressions to appear in situation where only one expression would ordinarily used
• Terminate loops or to exit from a switch
• Alter the normal sequence or program execution by transferring control to some other part of the program
• Carry out a logical test and then take one of two possible actions, depending upon the outcome of a test 
• None of above

Question No 6:The traditional way to create an infinite loop in C is

• FOR ( ; ; )… 
• IF (=) BREAK;
• WHILE ()…
• All of above
• None of above

Question No 7:The difference between the declaration of an external variable and its definition is

• A declaration causes storage space to be allocated to variable while a definition announces variable’s properties
• A declaration announces the properties of a variable while a definition also causes storage to be allocated
• A declaration announces the properties of a variable while definition only causes storage to be allocated
• A declaration uses storage space to be allocated to variable while a definition also announce its properties.
• None of above

Question No 8:The comma operator (,) is used to

• Permit to different expressions to appear in situation where only one expression would ordinarily be used
• Terminate loops or to exit from switch
• Alter the normal sequence of program execution by transferring control to some other parts of the program
• Carry out the logical test and then take one of two possible actions, depending upon the outcome of the test
• None of above

Question No 10:The recursive form of algebraic formula

y=(x1 + x2 + …+xn) is

• Y = x + n-1 xi i=1
• Y= xn + n xi i=1
• Y=xn+xi
• Y = xn + n-1 i=1 xi
• None of above

Question No 11:Which one of the following, is a storage class specification in C?

• Automatic
• External
• Static
• All of above
• None of above

Question No 12:Given these variables

char ch;

short i;

unsigned long ul;

float f;

The overall type of this expression is

• Char
• Unsigned
• Float
• Double
• None of above

Question No 13:What will this program display?

#include <stdio.h>

main()

{

float f;

f=10/3;

printf ("%f",f);

}

• 3.3
• 3.0
• 3
• 3.1
• None of above

Question No 14:The most common use of the one-dimensional array in C is the

• String
• Character
• Data
• Functions
• None of above

Question No 15:The string related function supplied by C standard library is

• strcpy()
• strcat()
• strcmp()
• All of above
• None of above

Question No 16:Find out the incorrect statement for strlen() function

• Returns the length of a string
• Does not count the null terminator
• Has general form strlen();
• All of above
• None of above

Question No 17:C provides loop constructs for performing loop operations. They are

• The WHILE statement
• The DO statement
• The FOR statement
• All of above
• None of above

Question No 18:Arrays that do not have their dimensions explicitly specified are called

• Unsized arrays
• Undimensional arrays
• Initialized arrays
• No size of arrays
• None of above

Question No 19:What is wrong with the given fragment?

• The size of the array is not specified
• Declaration must have float in place of int
• The list must be enclosed between curly braces
• All of the above
• None of the abov

Question No 20:A variable that holds the memory address of another object is called a

• integer
• pointer
• constant
• memory variable
• None of the abov

Question No 21:In C, the address of m's memory location can determined by the expression

• *m
• m&
• &m
• m*
• None of the abov

Question No 22:Main() is an example of

• library function
• user-defined function
• header
• statement
• None of the above,

Question No 24:The header file 'ctype.h' can be used for

• providing links to assembly language for calls
• providing diagnostic and debugging assistance
• providing support for string handling functions
• providing character type identification (Boolean) and translation
• None of the above.

Question No 25:The header file 'math.h* can be used for

• providing links to assembly language for calls
• providing diagnostic and debugging assistance
• providing support for string handling functions
• All of the above
• None of the above

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